|
|
|
| Registros recuperados: 32 | |
|
|
| Cabrera,Mario R.; Colantonio,Sonia E.. |
| The plastral spotting variation in the chelid turtle Phrynops hilarii (Duméril & Bibron, 1835) in relation to sex, size, and geographic procedence of individuals was analyzed. States for qualitative characters were analyzed using non-parametric tests. Quantitative characters (shell and scute measurements) were standardized for body size by linear regression against carapace length, and were subjected to principal components analysis and canonical discriminant function analysis. Results suggest that increased plastral spotting is a polymorphic ontogenetic trait in P. hilarii. Neither hatchlings nor juveniles have plastral pattern moderately or heavily pigmented. The simplest pattern, however, may persist without changes in some adults. There are no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reptilia; Chelidae; Phrynops; Pattern variation; South America. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200017 |
| |
|
|
| Rimblot, F; Fretey, J; Lescure, J; Pieau, C. |
| Sexual differentiation of the marine leatherback turtle is sensitive to temperature. Incubation of eggs below 29 degree C results in 100% males, whereas incubationa bove 30 degree C results in 100% potential females at hatching. Therefore, the threshold temperature lies between 29 and 30 degree C as has been found for other marine turtles (Caretta caretta, Chelonia mydas ). Among hatchlings from natural nests in French Guiana, 10% were males, 20% were potential females and 70% had an intermediate phenotype. The sand temperature at 60 cm of depth, near one nest, was recorded and was found to vary between 29 and 30 degree C during the presumed thermosensitive period. These results will be useful to marine turtle hatcheries which seek to manipulate sex ratios... |
| Tipo: Text |
Palavras-chave: Dermochelys coriacea; Chelonia mydas; Reptilia; Hatcheries; Natural populations; Incubation; Turtle culture; Eggs; Temperature effects; Sexual dimorphism. |
| Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/1983/acte-1241.pdf |
| |
|
| |
|
| |
|
|
| 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 |
| |
|
|
| Hoogmoed, M.S.. |
| A collection of snakes and frogs collected in the area of Porto Real, Rio de Janeiro State, Brazil, was bought in December 1890 and remained unidentified until now. The collection comprises 100 snakes belonging to 18 species and 152 frogs belonging to 19 species. A comparison with the herpetofauna from nearby Serra do Japi in São Paulo is made. General remarks on variation and identification are made for a number of species. Among the snakes were two specimens of Cercophis aurata (Schlegel, 1837), a species described on the basis of one specimen from Suriname, and no new specimens having been recorded until now. The new individuals cause the known area of distribution to be greatly enlarged, but such a large distribution area occurs in several other snakes... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reptilia; Ophidia; Cercophis auratus; Sauria; Amphibia; Anura; Inventory; Distribution; SE Brazil; Suriname; 42.82. |
| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/318387 |
| |
|
|
| Avila-Pires, T.C.S.. |
| Eighty-nine species of lizards, six of which polytypic (forming a total of 97 taxa), are presently known from Brazilian Amazonia. This number includes six species and one subspecies described as new to science in this paper: Stenocercus fimbriatus, Lepidoblepharis hoogmoedi, Leposoma osvaldoi, L. snethlageae, Tretioscincus oriximinensis, Tupinambis longilineus, and Anolis nitens tandai. Stenocercus dumerilii is resurrected from the synonymy of S. tricristatus. Bachia cophias is considered a junior synonym of B. flavescens. B. peruana is a new record from Brazil. Anolis nitens has priority over A. chrysolepis. The Amazonian Tupinambis is shown to be T. teguixin (of which T. nigropunctatus is a junior synonym). The name T. merianae should be used for T.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reptilia; Squamata; Lizards; Amazonia; Brazil; Zoogeography; Key.; 42.82. |
| Ano: 1995 |
URL: http://www.repository.naturalis.nl/record/317788 |
| |
|
|
| Hoogmoed, M.S.; Prudente, A.L.C.. |
| Three specimens of Atractus natans were found during fieldwork in the “Reserva Mamirauá”, Amazonas and a fourth one in the “Estação Científica Ferreira Penna”, Floresta de Caxiuanã, Pará, Brazil. The specimens from Mamirauá were all collected in floating logs in várzea forest during the period of flooding. The new species is small (maximum total length 308 mm) with a coniform head, has 17-17-17 smooth dorsals, without apical pits, male lacking pre-anal keels, ventrals 136-162, caudals 19-25, anal undivided. One or two postoculars, loreal 1.6 –2.8 times as long as high, frontal triangular, wider than long. Maxillary teeth 5-6. The hemipenis is bilobed, with bifurcated sulcus spematicus, capitulum with calyces covered by very small spines, body covered by... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reptilia; Colubridae; Atractus; Spec. nov.; Brazil; Amazonia; Mamirauá; Caxiuanã; Habitat; Várzea; 42.82. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/216162 |
| |
|
|
| Vargas-Ramírez, M.; Chiari, Y.; Castaño-Mora, O.V.; Menken, S.B.J.. |
| The Magdalena River Turtle (Podocnemis lewyana) is a Colombian endemic species, endangered due to human exploitation and habitat destruction. To date, this species is poorly known ecologically and data on its genetic diversity are lacking. Here we report on the first genetic survey of the species across its distribution range. We obtained mitochondrial DNA sequences (488 bp) of the cytochrome b gene from 109 individuals. Samples belong to populations located at several different localities, grouped in five regions, along the four main river basins: Magdalena, Cauca, San Jorge, and Sinú drainages. We found two haplotypes, which differ in only one nucleotide substitution and which are represented with different frequencies in the five geographic regions.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reptilia; Genetic population structure; Cytochrome b; MtDNA; Podocnemis; 42.82. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/217421 |
| |
|
|
| Guillon, J.-M.; Guéry, L.; Hulin, V.; Girondot, M.. |
| Turtles (Testudines) form a monophyletic group with a highly distinctive body plan. The taxonomy and phylogeny of turtles are still under discussion, at least for some clades. Whereas in most previous studies, only a few species or genera were considered, we here use an extensive compilation of DNA sequences from nuclear and mitochondrial genes for more than two thirds of the total number of turtle species to infer a large phylogeny for this taxon. Our results enable us to discuss previous hypotheses on species phylogeny or taxonomy. We are thus able to discriminate between competing hypotheses and to suggest taxonomical modifications. Finally, we pinpoint the remaining ambiguities for this phylogeny and the species for which new sequences should be... |
| Tipo: Article / Letter to the editor |
Palavras-chave: MtDNA sequence; NuDNA sequence; Phylogenetics; Reptilia; Taxonomy; 42.82. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/421559 |
| |
|
|
| Hoogmoed, M.S.; Avila-Pires, T.C.S.. |
| The Mission Radeau des Cimes to Petit Saut, French Guiana, offered the opportunity to study the herpetofauna of the canopy of the tropical rainforest, an area hardly studied sofar. Two localities at heights of 30 and 35 m could be studied, whereas data on a third site were obtained through information from other participants. The herpetological results of the research in the canopy were meagre. Only the frog Hyla leucophyllata (Beireis) and the lizard Mabuya bistriata (Spix) were observed in the canopy. Additionally the terrestrial herpetofauna was studied extensively and turned out to contain some species that had not been reported before from French Guiana. Also, for many species new distribution data within French Guiana were obtained. Le Mission Radeau... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Reptilia; Amphibia; Tropical rainforest; Canopy; Forest floor; Neotropics; French Guiana; 42.82. |
| Ano: 1991 |
URL: http://www.repository.naturalis.nl/record/318446 |
| |
|
|
| Avila-Pires, T.C.S.; Hoogmoed, M.S.. |
| Two new species of Pseudogonatodes Ruthven, 1915, are described, one from the Rio Juruá Basin, in the state of Acre, Brazil (Amazonian rainforest), the other from Rancho Grande, in the state Aragua, Venezuela (cloud forest). Both have granular dorsals and relatively numerous fourth toe lamellae, of which the third (from tip to base of toe) is not distinctly larger than the two distal ones. The species from the Rio Juruá is small, with dark belly, and recognised, among other characteristics, by its tall, conical to flat-conical dorsals. That from Rancho Grande is relatively large, with low number of ventrals, and mental with a straight or convex posterior segment medially, among other distinctive characteristics. Some remarks on the geographic distribution... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Coleodactylus; Gonatodes; Lepidoblepharis; Pseudogonatodes; Reptilia; Squamata; Lizards; New species; New record; Brazil; Venezuela; Geographic distribution; Amazonian rainforest; Cloud forest.; 42.82. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/215261 |
| |
|
|
| Hoogmoed, M.S.. |
| A re-examination of old specimens of the genus Atractus, preserved in the Rijksmuseum van Natuurlijke Historie resulted in the discovery of syntypes of Brachyorrhos badius F. Boie, B. flammigerus F. Boie, B. schach F. Boie and Rabdosoma torquatus Dumeril, Bibron & Dumeril. Lectotypes for all these species are designated. B. flammigerus and B. schach have been considered synonyms of Atractus badius since 1837. This proved to be wrong, they turned out to be valid taxa exhibiting differences in scale counts, body size, hemipenial morphology and colour pattern. Among recently collected material from Surinam the recently described A. zidoki Gasc & Rodrigues was discovered and described on the basis of seven specimens. Both A. latifrons (Günther) and A.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Colubridae; Reptilia; Atractus; Surinam; Taxonomic revision; New syntypes; 42.82. |
| Ano: 1980 |
URL: http://www.repository.naturalis.nl/record/323951 |
| |
|
| |
|
|
| MADELLA-AURICCHIO,CLÁUDIA RENATA; AURICCHIO,PAULO; SOARES,ENIO SARAIVA. |
| ABSTRACT The reptile diversity of the Middle Gurguéia River Basin in southern Piauí, Brazil, is little known. The rapid expansion of agriculture in the region is converting the Cerrado and Caatinga into large farming areas, which threatens biodiversity and hastens its loss. In this study, 68 specimens of reptiles from a university collection were examined, comprising 29 species: ten lizards, one amphisbaenian, 15 snakes, two turtles and one crocodilian. They were collected from five locations in the Middle Gurguéia Basin, a region not previously evaluated for reptiles. The most abundant species is a member of Tropidurus. Comparison with eight other areas in the eastern Parnaíba Basin indicated that the diversity of reptiles in the Middle Gurguéia is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reptilia; Helicops; Ecotone; Cerrado; Caatinga. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017002800375 |
| |
|
| |
|
| |
|
|
| Sousa,Bernadete Maria de; Cruz,Carlos Alberto Gonçalves da; Carvalho,Rose Marie Hoffmann de; Silva,Maria Nei da. |
| A specimen of Enyalius perditus Jackson, 1978 collected in a pitfall trap installed at the Parque Estadual do Ibitipoca, Municipality of Lima Duarte, State of Minas Gerais, Brazil, on 19 March 1997, showed a transversal rupture of the skin, on dorsum of posterior region of the head, just joining the ear openings. In captivity, the continuance of the shedding scain spent approxima-tely one hour and forty minutes. The pieces of skin were removed in the sequence: head, venter, arms and flanks, legs, tail, and finally the tip of the fingers. The removed skin was eaten at the end of each stage. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reptilia; Sauria; Enyalius perditus; Shedding skin. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100019 |
| |
|
| |
|
| |
| Registros recuperados: 32 | |
|
|
|
