Consulta: subjectFacets:"Osteology"
Registros recuperados: 34
Data/hora: 06/06/2024 03:30:32

Vocalizations and comments on the relationships of Hypsiboas ericae (Amphibia, Hylidae)
Provedor de dados: 76
Autores: Garcia,Paulo C. A.; Haddad,Célio F. B.
The vocalizations of Hypsiboas ericae (Caramaschi &amp;amp; Cruz, 2000) are described and new information on the external morphology and osteology of the species are presented. H. ericae presents a bony spine in the prepolex and the individuals can present green or brown dorsal color, as other species of the Hypsiboas pulchellus (Duméril &amp;amp; Bibron, 1841) species group. The vocalizations of H. ericae are similar to the vocalizations of Hypsiboas bischoffi (Boulenger, 1887), Hypsiboas guentheri (Boulenger, 1886), and other species in the H. polytaenius (Cope, 1870 "1869") clade of the H. pulchellus species group, but some osteological aspects are different to those found in the majority of the species of this group.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hypsiboas ericae; Vocalizations; Osteology; Hypsiboas pulchellus group.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000100021

Teleostean Phylogeny Based on Osteological and Myological Characters
Provedor de dados: 77
Autores: Diogo,Rui; Doadrio,Ignacio; Vandewalle,Pierre.
Despite the progresses done in the field of teleostean phylogeny in the last decades, recent studies continué to raise questions concerning the higher-level relationships of this remarkably diverse group of fishes. The main aim of the present work is to help to clarify teleostean higher-level relationships. For that purpose, we undertook a cladistic analysis including 70 terminal taxa of 20 different orders and 271 morphological characters, concerning mainly osteological and myological structures of the cephalic region , pectoral girdle and fins and anterior vertebrae. In the consensus cladogram obtained, the elopomorphs appear as the most basal extant teleosts. The osteoglossomorphs included in the analysis are grouped in a monophyletic clade, which is...
Tipo: Journal article
Palavras-chave: Elopomorpha; Euteleostei; Myology; Otocephala; Osteoglossomorpha; Osteology; Phylogeny; Teleostei.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300001

Anatomic Description of the Ulna of the White-Footed Tamarin (Saguinus leucopus Günther, 1876)
Provedor de dados: 77
Autores: Vélez-García,Juan Fernando; Duque-Parra,Jorge Eduardo; Barco-Ríos,John.
This document is a description of the macroscopic functional anatomy of the ulna bony prominences in the White-footed Tamarin (Saguinus leucopus), a neotropical endemic, and monotypic primate of Colombia. Few studies have been conducted on its anatomy, and thus its ulnar morphology, an essential element for this animal's quadrupedal arboreal locomotion, remains unknown. This study is based on eight specimens, fixed in formalin at 10 % whose ulnas were extracted in order to describe the main bony prominences along with muscular and ligamentous fixation functions. These elements of the locomotor apparatus and the multiple anatomical contours of the ulna of the White-footed Tamarin, exhibit characteristics for positional and articular adjustment with other...
Tipo: Journal article
Palavras-chave: Anatomy; Attachments; Osteology; Primate.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000400035

Cranial Osteology of the Armadillo Chaetophractus villosus (Mammalia, Xenarthra, Dasypodidae)
Provedor de dados: 77
Autores: Squarcia,Silvia Margarita; Sidorkewicj,Nora Silvia; Casanave,Emma Beatriz.
The morphology and morphometry of the cranial bones of Chaetophractus villosus were studied. The skull components are morphologically similar between adults of both sexes, and follow the generalized pattern for most of described dasypodids. The morphometric analysis, however, demonstrated that the bones lying in the rostrocaudal plane are mostly longest in females, determining higher values of the total, basal and condilobasal lengths of the skull, which are the main variables that contribute to a sexual dimorphism in this species
Tipo: Journal article
Palavras-chave: Dasypodidae; Morphology; Osteology; Skull; Sexual dimorphism.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500004

An Osteometric Evaluation of the Mandibular Condyle in a Black KwaZulu-Natal Population
Provedor de dados: 77
Autores: Ishwarkumar,S; Pillay,P; DeGama,B. Z; Satyapal,K. S.
The mandibular condyle is the rounded protuberance that articulates with the mandibular fossa to form the temporomandibular joint (TMJ). The shape of the mandibular condyle may be classified according to five basic shapes viz. flattened, convex, angled, rounded and concave. Previous research indicated that variation in the shape and size of the mandibular condyle, exists and that population-specific differences may also occur. This study aimed to document the shapes and size of the mandibular condyle and determine their relationship with regard to sex, age and race (if any). The morphometric and morphological parameters of the mandibular condyle were measured and assessed in 54 dry mandible specimens (n= 108). The Wedel et al. (1978) classification scheme...
Tipo: Journal article
Palavras-chave: Mandibular condyle; Mandibles; Osteology; Morphometry; Morphology.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300005

Morphometric Study of Five Constant Skull Base Foramina in the Muisca Population of the Tibanica Anthropological Collection of the Universidad de Los Andes
Provedor de dados: 77
Autores: Stozitzky Muñoz,Nicolás; Rueda-Esteban,Roberto Javier.
Among osteological anatomic variations are those of the skull base foramina. These openings have conventionally been classified as either constant or variant. Their presence and dimensions have been associated with certain pathologies and procedural complications. Additionally, variability in these foramina between different ethnic groups has been observed, and it is sometimes possible to identify particular patterns of variability in certain populations. This anthropometric cross-sectional study seeks to determine the principal dimensions (bilateral anteroposterior and lateromedial diameters) of five constant skull base foramina in the adult Muisca population of the Tibanica anthropological collection at Universidad de los Andes. The studied foramina were...
Tipo: Journal article
Palavras-chave: Colombia; Cross Sectional Analysis; Skull; Anthropometry; American Native Continental Ancestry Group; Osteology.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000400022

Systematics and phylogeny of Sitana (Reptilia: Agamidae) of Peninsular India, with the description of one new genus and five new species
Provedor de dados: 16
Autores: Deepak, V.; Giri, V.B.; Asif, M.; Dutta, S.K.; Vyas, R.; Zambre, A.M.; Bhosale, H.; Karanth, K.P.
We revise the taxonomy of the agamid genus Sitana Cuvier, 1829, a widely distributed terrestrial lizard from the Indian subcontinent based on detailed comparative analyses of external morphology, osteology and molecular data. We sampled 81 locations spread over 160,000 km2 in Peninsular India including type localities, which represented two known and five previously undescribed species. Based on general similarity in body shape and dewlap all species were hitherto identified as members of the genus Sitana. However, Sitana deccanensis and two other morphotypes, which are endemic to north Karnataka and Maharashtra in Peninsular India, are very distinct from the rest of the known members of the genus Sitana based on their external morphology and osteology....
Tipo: Article / Letter to the editor
Palavras-chave: Cryptic; Dewlap; Genetics; Morphology; Osteology; Taxonomy.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/607663

Molecules, morphology, and the monophyly of diapsid reptiles
Provedor de dados: 16
Autores: Lee, Michael S.Y.
The morphological and molecular evidence for higher-level reptile relationships is reassessed, A combined analysis of 176 osteological, 40 soft anatomical, and 2903 (1783 aligned) molecular characters in 28 amniote taxa yields the traditional reptile tree. Synapsids (including mammals) are the sister taxon to all other amniotes, including all extant reptiles. Turtles group with anapsid parareptiles and fall outside a monophyletic Diapsida. Within diapsids, squamates and Sphenodon form a monophyletic Lepidosauria, and crocodiles plus birds form a monophyletic Archosauria. This tree is identical to the tree strongly supported by the osteological data alone when fossils are included. In a combined analysis the strong osteological signal linking turtles with...
Tipo: Article / Letter to the editor
Palavras-chave: Reptilia; Testudines; Cladistics; Osteology; Fossils; Molecular phylogenetics.
Ano: 2001
URL: http://www.repository.naturalis.nl/record/534306

The Taxinomic Status of Hemidactylus Nigriventris (Reptilia: Saura: Gekkonidaea)
Provedor de dados: 16
Autores: Bastinck, J.
Hemidactylus nigriventris Van Lidth de Jeude, 1905, known only from the holotype from Sintang, Borneo, is shown to be conspecific with H.frenatus Duméril &amp; Bibron, 1836.
Tipo: Article / Letter to the editor
Palavras-chave: Gekkonidae; Hemidactylus; Osteology; Taxonomy; 42.82.
Ano: 1985
URL: http://www.repository.naturalis.nl/record/317966

Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy
Provedor de dados: 83
Autores: Mirande,Juan Marcos.
The family Characidae is the most diverse among Neotropical fishes. Systematics of this family are mainly based on pre-cladistic papers, and only recently a phylogenetic hypothesis for Characidae was proposed by the author. That phylogeny was based on 360 morphological characters studied for 160 species, including representatives of families related to Characidae. This paper is based on that phylogenetic analysis, with the analyzed characters described herein and documented, accompanied by comparisons of their definition and coding in previous papers. Synapomorphies of each node of the proposed phylogeny are listed, comparisons with previous classifications provided, and autapomorphies of the analyzed species listed. Taxonomic implications of the proposed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ostariophysi; Osteology; Morphology; Classification; Systematics.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000300001

Systematics and biogeography of Sternarchellini (Gymnotiformes: Apteronotidae): Diversification of electric fishes in large Amazonian rivers
Provedor de dados: 83
Autores: Ivanyisky III,Stephen J.; Albert,James S.
The Sternarchellini (Gymnotiformes, Apteronotidae) is a clade of 10 electric fish species that inhabit deep river channels of the Amazon and Orinoco basins, attain moderate adult body sizes (15-50 cm TL), and have a predatory life style. Here we trace the evolutionary origin and diversification of Sternarchellini using standard phylogenetic and biogeographic procedures and a dataset of 70 morphological characters. The main results are: 1) the genus Sternarchellaincludes both species currently assigned to the genus Magosternarchus; and 2) neither of the multi-species assemblages of Sternarchellini in the Amazon and Orinoco basins are monophyletic. Historical biogeographic analysis suggests that sternarchelline evolution was linked to the large-scale river...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecological specialization; Evolution; Historical Biogeography; Neotropical; Osteology.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000300565

Arrhinolemur scalabrinii Ameghino, 1898, of the late Miocene : a taxonomic journey from the Mammalia to the Anostomidae (Ostariophysi: Characiformes)
Provedor de dados: 83
Autores: Bogan,Sergio; Sidlauskas,Brian; Vari,Richard P; Agnolin,Federico.
The fossil species Arrhinolemur scalabrinii, which was described from late Miocene deposits of Entre Ríos, Argentina, is reevaluated. Whereas the species was originally placed in the Primates (Mammalia) and later made the unique member of the order Arrhinolemuroidea within the Mammalia, our analysis indicates that the specimen is rather a fish of the genus Leporinus, family Anostomidae (Characiformes). The species is redescribed, and the characters that support its new generic assignment are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Argentina; Fossil; Leporinus; Osteology; Phylogeny.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300008

A new species of Tyttocharax (Characiformes: Characidae: Stevardiinae) from the Güejar river, Orinoco river Basin, Colombia
Provedor de dados: 83
Autores: Román-Valencia,César; García-Alzate,Carlos A.; Ruiz-C,Raquel I; Donald,C; Taphorn,B.
A new Tyttocharax species from the Güejar River system, near the Macarena Mountains in Colombia is described. This is the first record for the genus from the Orinoco basin. The combination of the following characters distinguish Tyttocharax metae from its congeners: presence of bony hooks on the pectoral and caudal-fin rays; bony hooks on the anal-fin rays larger than those on the pelvic-fin rays; pectoral-fin rays i,5-6,i; presence of three unbranched dorsal-fin rays; absence of an adipose fin; four scales rows between the anal-fin origin and the lateral line; and four scale rows between the pelvic-fin and the lateral line. Ecological characteristics of the habitat of the new species are also presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geographic distribution; Neotropical fish; Osteology; Scales; Teeth.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300004

Redescription and phylogenetic position of the enigmatic Neotropical electric fish Iracema caiana Triques (Gymnotiformes: Rhamphichthyidae) using x-ray computed tomography
Provedor de dados: 83
Autores: Carvalho,Tiago P.; Albert,James S.
We redescribe Iracema caiana, a monotypic genus of the gymnotiform electric fish family Rhamphichthyidae. Iracema is known only from the type series (holotype and three paratypes) collected from the rio Jauaperi, affluent to the rio Negro in the Amazon basin, and was never collected again. Previous morphological studies were limited to features of external morphology. To study the osteology of Iracema we examined two specimens of different sizes using high-resolution x-ray computed tomography, a non-invasive and non-destructive technique to visualize internal anatomical structures. We describe and illustrate the osteology of Iracema caiana, and present data on morphometrics and external morphology. Contrary to previous hypotheses we propose that Iracema is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Biodiversity; Guiana Shield; Osteology; Rare fish; Rhamphichthys.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300001

Taxonomic review of the typical long-snouted species of Corydoras (Siluriformes: Callichthyidae) from the río de La Plata basin
Provedor de dados: 83
Autores: Tencatt,Luiz Fernando Caserta; Santos,Sérgio Alexandre dos; Britto,Marcelo Ribeiro de.
Abstract The typical long-snouted species of Corydoras from the río de La Plata basin were reviewed herein, and the previously proposed synonymy of Corydoras ellisae was corroborated. Corydoras areio and C. aurofrenatus are diagnosed from their congeners, excluding those in lineage 1, by the following features: temporal sensory canal in sphenotic with two pores; upper tooth plate of branchial arch with three or four series of teeth; fleshy flap at mouth corner. Corydoras areio differs from all lineage 1 congeners by having infraorbital 2 with relatively wider posterior laminar expansion; absence of large patches of black pigmentation on the body and absence of conspicuous concentration of dark brown or black chromatophores on anterior portion of the dorsal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corydoradinae; Corydoras diphyes; Corydoras ellisae; Osteology; Río Paraguay basin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000400208

A new species of Paralithoxus (Siluriformes: Loricariidae: Ancistrini) from the highlands of Serra da Mocidade, Roraima State, Brazilian Amazon
Provedor de dados: 83
Autores: Rapp-Py-Daniel,Lúcia; Oliveira,Andreza S.; Bastos,Douglas A.; Ito,Priscila Madoka M.; Zuanon,Jansen; Briglia-Ferreira,Sylvio Romério.
ABSTRACT A new species of Paralithoxus is described from the Ajarani River, a small tributary of the Branco River basin, Roraima State, Brazilian Amazon. The genus Paralithoxus comprises species described from the Essequibo drainage in Guyana, Approuague and Maroni in French Guiana, Suriname River in Surinam, and more recently, from Jari and Amapá rivers, in Brazil. Despite occurring in a rock-bottomed fast-flowing stream as the other species of Paralithoxus, this is the first species of the genus collected at 900 m altitude, in the Serra da Mocidade highlands, an isolated and poorly accessible small mountain chain at the southern border of the Guiana Shield. The new species is distinguished from its congeners by having truncate teeth, color pattern with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Altitudinal fishes; Morphology; Osteology; Rio Branco basin; Taxonomy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500209

A new catfish species of the genus Trichomycterus (Siluriformes: Trichomycteridae) from the río Orinoco versant of Páramo de Cruz Verde, Eastern Cordillera of Colombia
Provedor de dados: 83
Autores: DoNascimiento,Carlos; Prada-Pedreros,Saúl; Guerrero-Kommritz,Jürgen.
A new Trichomycterus is described from a highland tributary of the río Meta (Orinoco basin), along the east flank of Páramo de Cruz Verde, Eastern Cordillera of Colombia. The new species is distinguished from most of its congeners by having a reduced posterior cranial fontanel, restricted to the parieto-supraoccipital, cleithrum pierced by several foramina, and an unique combination of four irregular rows of conic teeth in premaxilla and dentary, 13-14 opercular odontodes, 41-43 interopercular odontodes, 6-7 branchiostegal rays, 40 or 41 free vertebrae, 14-18 ribs, first ray of pectoral fin slightly projected as a short filament, 7-8 branched pectoral-fin rays, dorsal-fin origin at same level of pelvic-fin insertion, anal-fin origin posterior to dorsal-fin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ituglanis; Río Orinoco basin; Osteology; Trichomycterinae; Trichomycterus cachiraensis.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000400717

Monophyly of Heterandriini (Teleostei: Poeciliidae) revisited: a critical review of the data
Provedor de dados: 83
Autores: Morales-Cazan,Alfy; Albert,James S.
The systematics and taxonomy of poeciliid fishes (guppies and allies) remain poorly understood despite the relative importance of these species as model systems in the biological sciences. This study focuses on testing the monophyly of the nominal poeciliine tribe Heterandriini and the genus Heterandria, through examination of the morphological characters on which the current classification is based. These characters include aspects of body shape (morphometrics), scale and fin-ray counts (meristics), pigmentation, the cephalic laterosensory system, and osteological features of the neurocranium, oral jaws and suspensorium, branchial basket, pectoral girdle, and the gonopodium and its supports. A Maximum Parsimony analysis was conducted of 150 characters...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish diversity; Heterandria; Ichthyology; Osteology; Pseudoxiphophorus; Systematics.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100003

Previously undescribed dental arrangement among electric knifefishes, with comments on the taxonomic and conservation status of Tembeassu marauna Triques (Otophysi: Gymnotiformes: Apteronotidae)
Provedor de dados: 83
Autores: Campos-da-Paz,Ricardo.
Recent study of the type-material of Tembeassu marauna, a poorly-known species currently represented in collections only by its holotype (male) and paratypes (male and female), all collected forty years ago at the Ilha Solteira reservoir area, upper Paraná river region, revealed an unique pattern of dental arrangement among members of the order Gymnotiformes. This autapomorphic condition refers to a patch of around 15 elongate conical, extra teeth associated to soft tissue, and disposed inside the mouth on a restricted area at the roof of oral cavity and located just in front of the premaxillary bones (although clearly apart from those). Besides this obvious feature, two additional conditions are recognized as possibly unique for T. marauna, which refer to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apteronotus; Gymnotiforms; Mouth; Osteology; Teeth; Upper Paraná.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000300007

Crenicichla chicha, a new species of pike cichlid (Teleostei: Cichlidae) from the rio Papagaio, upper rio Tapajós basin, Mato Grosso, Brazil
Provedor de dados: 83
Autores: Varella,Henrique R.; Kullander,Sven O.; Lima,Flávio C. T.
Crenicichla chicha, new species, occurs in clear, fast-running waters with rocky substrates in the rio Papagaio and tributaries. It is distinguished from all other Crenicichla species by the combination of two character states: infraorbitals 3 and 4 co-ossified (vs. separated) and 66-75 scales in the row immediately above to that containing the lower lateral line (E1 row scales). Crenicichla chicha shares a smooth preopercular margin, co-ossification of infraorbitals 3 and 4, and some color features with C. hemera from the adjacent rio Aripuanã drainage, rio Madeira basin. It differs from Crenicichla hemera in more E1 scales (66-75 vs. 58-65) and presence of a conspicuous black narrow stripe running from infraorbital 3 obliquely caudoventrad toward the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crenicichla guentheri; Crenicichla hemera; Jacundá; Osteology; Rio Juruena.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200002

Phylogenetic relationships of the enigmatic Carlastyanax aurocaudatus (Eigenmann) with remarks on the phylogeny of the Stevardiinae (Teleostei: Characidae)
Provedor de dados: 83
Autores: Mirande,Juan Marcos; Jerep,Fernando Camargo; Vanegas-Ríos,James Anyelo.
The monotypic genus Carlastyanax Géry was defined to include Astyanax aurocaudatus, a morphologically odd species having, among other features, four teeth in the posterior premaxillary row and eight branched dorsal-fin rays. Later on, the characters used to define Carlastyanax were considered as invalid and this genus was synonymized with Astyanax. In this paper, we include Astyanax aurocaudatus in a phylogeny of the Characidae and obtain a sister-group relationship between this species and Creagrutus, within the Stevardiinae. The resurrection of Carlastyanax as a valid genus is therefore proposed. The analysis presented is the largest phylogeny of the Stevardiinae so far published. Relationships of this subfamily are also discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Creagrutus; Morphology; Ostariophysi; Osteology; Systematics.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400747

Ituglanis macunaima, a new catfish from the rio Araguaia basin, Brazil (Siluriformes: Trichomycteridae)
Provedor de dados: 83
Autores: Datovo,Aléssio; Landim,Maria Isabel.
Ituglanis macunaima, new species, is described from the rio Araguaia basin, Mato Grosso, Brazil. It is distinguished from its congeners by the following combination of characters: posterior fontanel absent; pectoral-fin rays usually i,4; pelvic-fin rays usually i,4; branched caudal-fin rays usually 5,5; mottled color pattern formed by irregular to roundish dark brown spots on whitish background; reduced supraorbital canal with pores s1 and s2 lacking; reduced infraorbital canal with pores i1 and i3 lacking; 2-3 pleural ribs; and 35-38 vertebrae. A detailed description and illustrations of the skeleton of I. macunaima are also provided. Comparisons with other trichomycterids are presented, and several reductive traits of I. macunaima are discussed. Some...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Loricarioidea; Osteology; Paedomorphosis; Taxonomy; Systematics.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400002

Morphological development of the mouth and improvement in feeding ability in the early larval stages of red porgy, Pagrus pagrus (L.)
Provedor de dados: 20
Autores: Aristizabal, E.O.
The appearance, ossification and growth of cartilaginous structures of the mouth in early larval stages of laboratory reared red porgy Pagrus pagrus, were examined. At the time of mouth opening, red porgy larvae are equipped with the fundamental components of the oral cavity to allow the sucking motion for acquiring food. During the initial feeding stage, from day 5 after hatching (AH) to day 7 AH, the hyoid and lower branchial archs were completed, and the head length and other structural elements, like the ceratohyal-epihyal cartilage, increased rapidly. These events intensified sucking mechanisms by increasing the amount of ingested rotifers. After day 13 AH, the presence of the bony premaxilla and angular, the ossification of the Meckels cartilage and...
Tipo: Journal Contribution
Palavras-chave: Marine aquaculture; Fish culture; Fish larvae; Osteology; Fish culture; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_2918; Http://aims.fao.org/aos/agrovoc/c_2924.
Ano: 2005
URL: http://hdl.handle.net/1834/1560

CRANIAL OSTEOLOGY OF CYCLARHIS GUJANENSIS (AVES: VIREONIDAE)
Provedor de dados: 84
Autores: PREVIATTO,DIEGO MATIUSSI; POSSO,SÉRGIO ROBERTO.
The small passerine Cyclaris gujanensis can tear into small pieces large or heavy-bodied preys that could not be swallowed whole such as frogs, snakes, bats and birds. However there are few studies on the cranial anatomy of this species. Thus, we focused on the description of the cranial osteology to contribute to the anatomical knowledge of this species and to make some assumptions about functional anatomy. The fossa temporalis is shallow but broad and the fossa of os palatinum is deepened. The os quadratum processes are long and thick. The os pterygoideum is enlarged and the upper jaw is strongly inclined ventrally (140°) with reference to the skull. The rostral extremity of rhamphotheca is hooked with ventral concavity to fit the mandible (pincer form)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rufous-browed Peppershrike; Skull; Osteology; Anatomy.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492015001800255

Odontesthes mirinensis, sp.n. um novo peixe-rei (Pisces, Atherinidae, Atherinopsinae) para o extremo sul do Brasil
Provedor de dados: 104
Autores: Bemvenuti,Marlise de Azevedo.
Odontesthes mirinensis, a new species of silverside, is described in coastal lagoons system of Rio Grande do Sul, Brazil. The new species is distinguished from other Odontesthes species by short snout and having 24-29 gill rakers on the lower branch of the first branchial arch. Osteological features (bones of the skull, axial skeleton and girdles) are included and discussed. Meristic and morphometric variables were analyzed separately, through multivariate procedures. Principal Component Analysis show that Odontesthes mirinensis, sp.n. does not exhibit significant geographic variation on body shape.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pisces; Atherinidae; Odontesthes; New species; Osteology.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000400017

Desenvolvimento osteológico de Hippocampus reidi Ginsburg (Pisces, Syngnathiformes, Syngnathidae), em laboratório: II. Período juvenil
Provedor de dados: 104
Autores: Silveira,Rosana Beatriz.
The sequence of events of the ossification process in the newly bom specimens of Hippocampus reidi Ginsburg, 1933 up to 37 days of life has been described, mainly the ossification in the ethmoid plate, palatine, pectoral girdle, and postorbital bones and bony structures such as mesoethmoid, articular and six suborbitals. Observation on adult specimens are presented too.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hippocampus; Seahorse; Osteology.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200021

Esqueleto pré-sacral e sacral dos lagartos teiêdeos (Squamata, Teiidae)
Provedor de dados: 104
Autores: Veronese,Lauren Betina; Krause,Lígia.
The morphology of the axial skeleton -pressacral and sacral regions - of the nine genera of Teiidae Boulenger, 1885 comprising Ameiva Meyer, 1795, Callopistes Gravenhorst, 1838, Cnemidophorus Wagler, 1830, Crocodilurus Spix, 1825, Dicrodon Duméril &amp;amp; Bibron, 1839, Dracaena Daudin, 1802, Kenlropyx Spix, 1825, Teius Merrem, 1820 and Tupinambis Daudin, 1803 is here analysed under a comparative approach. The study is in a generic levei, and the principal conclusions reter to differences on the total number of vertebrae and some aspects of the ribs, especially their insertion and presence.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Teiidae; Osteology; Pressacral and sacral regions; Lizard.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000100002

Desenvolvimento osteológico de Hippocampus reidi Ginsburg (Pisces, Syngnathiformes, Syngnathidae), em laboratório: I. Período embrionário
Provedor de dados: 104
Autores: Silveira,Rosana Beatriz.
The cartilaginous Structures of the cmbryos of Hippocampus reidi Ginsburg, 1933, were described as well as the beginning of the ossification process in the dentary, angular, retroarticular, operculum, frontal, supraoccipital bonés and neural end hemal arches. The viteline sac is well developed. The results show that cartilaginous structures are predominam in specimens with an average of 4.85 mm in total length.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hippocampus; Seahorse; Osteology; Fishes.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200020

Hábito alimentar e osteologia da boca do peixe-rei, Odontesthes humensis de Buen (Atheriniformes, Atherinopsidae) na Lagoa Mirim, Rio Grande do Sul, Brasil
Provedor de dados: 104
Autores: Rodrigues,Fábio Lameiro; Bemvenuti,Marlise de Azevedo.
Gut contents of 304 individuals of the silverside Odontesthes humensis de Buen, 1953 were analyzed using frequency of occurrence (FO%) and gravimetric (P%) methods. A total of 207 individuals (68.1%) had some food itens in the gut, while 97 individuals (31.9%) had empty guts. The silverside Odontesthes humensis has presented a benthic carnivorous diet, preying mainly on molluscs and arthropods. The molluscs Heleobia sp. (FO = 61.35%) and Corbicula fluminea (Müller, 1774) (FO = 57.97%) were the most frequent itens, followed by Neocorbicula limosa (Maton, 1811) (FO = 17.39%). Among the arthropods, the coleoptera insects (FO= 18.84%) were dominant followed by, insect larvae (FO = 6.76%), the crustacean Palaemonetes argentinus Nobili, 1901 (FO = 1.93%) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atherinopsielae; Odontesthes; Osteology; Feeding habits.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000300015

Diferenciação morfométrica e osteológica entre Ramnogaster arcuata (Jenyns) e Platanichthys platana (Regan) (Teleostei, Clupeidae)
Provedor de dados: 104
Autores: Campello,Fernando Dantas; Bemvenuti,Marlise de Azevedo.
Ramnogaster arcuata (Jenyns, 1842) and Platanichthys platana (Regan, 1917), found at the estuary of Lagoa dos Patos and coastal lagoon (Lagoa Mirim) at the South of Brazil, are two sympatric clupeid fishes with very similar features. In order to clarify their taxonomic and geographical situation, delimiting its occurrence in fresh waters, a comparative study of the bony structures of the head, anal and dorsal fins and ventral scutes of these two sardines was developed. The osteological study with clear and stain technique included more information about the differentiation of the groups from the bones of the supramaxilla, dentary, pterygiophore and epipleural ribs. Variations on the body shape of those species were analyzed through the multivariate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clupeidae; Multivariate morphometry; Morphological variation; Osteology.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000300013

Reassessment and Relationships of †Scutatuspinosus itapagipensis (Teleostei, Clupeomorpha, †Ellimmichthyiformes) from the Neocomian of Recôncavo Basin, Northeastern Brazil
Provedor de dados: 42
Autores: FIGUEIREDO,FRANCISCO J. DE; RIBEIRO,DOUGLAS R.M.
ABSTRACT Clupeomorphs are found in many assemblages of the northeastern Brazil, whose ages range from the Neocomian to Paleogene. Ten species were described. Among them †Scutatuspinosus itapagipensis, a torpedo-like fish found in shales of the Marfim Formation from Bahia, remains poorly known. At first it was positioned within †Scutatuspinosinae and indicated as closely related to †Diplomystus. Diagnoses for the subfamily and genus were based on certain characters masking relationships. Recently it was placed in †Ellimmichthyiformes, but its systematic position remains controversial. We furnish additional data and restorations together with a parsimony analysis with TNT program, using 60 unordered and unweighted characters from selected species of 13...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: †Scutatuspinosus itapagipensis; Osteology; Systematics; Recôncavo Basin; Lower Cretaceous.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000300799

An overview of the appendicular skeletal anatomy of South American titanosaurian sauropods, with definition of a newly recognized clade
Provedor de dados: 42
Autores: RIGA,BERNARDO J. GONZÁLEZ; LAMANNA,MATTHEW C.; OTERO,ALEJANDRO; DAVID,LEONARDO D. ORTIZ; KELLNER,ALEXANDER W.A.; IBIRICU,LUCIO M.
Abstract: In the last two decades, the number of phylogenetically informative anatomical characters recognized in the appendicular skeleton of titanosaurian sauropod dinosaurs has increased dramatically with the discovery of new and comparatively complete specimens. Here we provide an overview of the appendicular skeletal morphology of South American titanosaurs and discuss its significance for phylogenetic reconstruction. The appendicular skeletal diversity of South American titanosaurs is substantially greater than was initially appreciated. Moreover, some regions of the appendicular skeleton, such as the pes, exhibit remarkable variability in form. Multiple synapomorphies of Titanosauria and the less inclusive clades Lithostrotia and Saltasauridae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Titanosauria; South America; Appendicular skeleton; Osteology; Phylogeny; Colossosauria.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400514

Moenkhausia lepidura (Kner, 1858) (Characiformes, Characidae): osteology and relationships
Provedor de dados: 49
Autores: Darlim,Gustavo; Marinho,Manoela M. F.
Abstract Cladistic analysis of fishes are mostly based on osteological studies. Phylogenetic relationships within the family Characidae are poorly known in part due to the lack of anatomical studies of its members, including osteology. The present contribution aims to offer a detailed description of all bony complexes of Moenkhausia lepidura. Two remarkable morphological conditions present in the species are discussed: a bony lamella on the proximal portion of the ribs and a basal expansion of the gill rakers. A morphological survey of several species of Characidae along with available phylogenetic information of the family indicates the putative relationships of Moenkhausia lepidura with other small characids presenting bony lamella on ribs and a dark...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osteology; Moenkhausia lepidura-group; Ribs; Gill rakers.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000400204

Comparative analysis of cranial suture complexity in the genus Caiman (Crocodylia, alligatoridae)
Provedor de dados: 57
Autores: MONTEIRO,L. R.; LESSA,L. G.
The variation in degrees of interdigitation (complexity) in cranial sutures among species of Caiman in different skull regions was studied by fractal analysis. Our findings show that there is a small species effect in the fractal dimension of cranial sutures, but most variation is accounted for by regional differentiation within the skull. There is also a significant interaction between species and cranial regions. The braincase sutures show higher fractal dimension than the facial skull sutures for all three species. The fractal dimension of nasal-maxilla suture is larger in Caiman latirostris than in the other species. The braincase sutures show higher fractal dimensions in C. sclerops than in the other species. The results suggest that different regions...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cranial sutures; Fractal analysis; Osteology; Caiman.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400021