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Registros recuperados: 160
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A ?carcineretid crab from Lower Turonian (Cretaceous) black shales of Misburg, Hannover area (Germany) Naturalis
Neumann, Christian; Jagt, John W.M..
Although poorly preserved and missing most, if not all, carapace features that would allow for a proper assignment at the generic level, we think a crab (Fig. 1) contained in the collections of the late Professor Gundolf Ernst warrants a short description, if only in view of its preservational style.
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Carcineretidae; Turonian; Germany.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/534357
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A new alpheid shrimp (Crustacea: Decapoda: Alpheidae) from South Vietnam Naturalis
Nguyên Van Xuân.
A new alpheid shrimp, Thuylamea camelus gen. nov. & spec. nov., from Dong Hoa, a coastal community of Can Gio district, and northwest of Vung Tau (Cap St. Jacques), Vietnam, is described and illustrated. The new genus appears not to be closely related to any of the previously described genera. It has the postero-dorsal margin of the carapace armed with two high and short crests which are slightly outward inclined and directed backward, and between these crests with a low but distinct conical spine, and an elevated conical boss in the anterior median area slightly behind the anterior margin of the first abdominal somite.
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Alpheidae; New genus; New species; Vietnam; 42.74.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/217444
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A new cavernicolous freshwater crab, Thelphusula styx sp. nov. (Crustacea: Decapoda: Brachyura: Gecarcinucidae), from Gunong Mulu, Sarawak, Borneo Naturalis
Ng, P.K.L..
A new species of gecarcinucid freshwater crab, Thelphusula styx spec. nov., is described from Gunong Mulu National Park in Sarawak, Borneo. This is the third species of Thelphusula reported from the area.
Tipo: Article / Letter to the editor Palavras-chave: Decapoda; Crustacea; Brachyura; Gecarcinucidae; Thelphusula spec. nov.; Cavernicole; Gunong Mulu; Sarawak; Borneo; 42.74.
Ano: 1989 URL: http://www.repository.naturalis.nl/record/318136
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A new classification of the Xanthoidea sensu lato (Crustacea: Decapoda: Brachyura) based on phylogenetic analysis and traditional systematics and evaluation of all fossil Xanthoidea sensu lato Naturalis
Karasawa, H.; Schweitzer, C.E..
A phylogenetic analysis was conducted including representatives from all recognized extant and extinct families of the Xanthoidea sensu lato, resulting in one new family, Hypothalassiidae. Four xanthoid families are elevated to superfamily status, resulting in Carpilioidea, Pilumnoidoidea, Eriphioidea, Progeryonoidea, and Goneplacoidea, and numerous subfamilies are elevated to family status. The Mathildellidae is moved from the Goneplacidae to the Portunoidea. Diagnoses for all superfamilies and families discussed herein are provided, embracing characters typically used by biologists as well as readily fossilized features of the dorsal carapace, sternum, abdomen, and chelipeds. All genera known from the fossil record at one time referred to the Xanthidae...
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Brachyura; Xanthoidea; Portunidae; Systematics; Phylogeny; 42.74.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/210768
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A new species of Freshwater Prawn, Macrobrachium Johnsoni spec. nov. (Decapoda: Caridea: Palaemonidae) from Peninsular Malaysia, and a description of its First Zoea Naturalis
Chong, S.S.C.; Khoo, H.W..
A new species of freshwater prawn of the family Palaemonidae, Macrobrachium johnsoni spec. nov., is described from southern Peninsular Malaysia. Notes on live colouration, habitat, and larval development are provided. The first zoea of this new species is also described in detail. A comparison is made between M. johnsoni and a closely related species, M. pilimanus (De Man, 1879).
Tipo: Article / Letter to the editor Palavras-chave: Decapoda; Caridea; Palaemonidae; Macrobrachium; New species; Peninsular Malaysia; Larval development; 42.74.
Ano: 1987 URL: http://www.repository.naturalis.nl/record/318094
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A new species of palaemonid shrimp, Chacella tricornuta spec. nov (Crustacea: Decapoda: Palaemonidae) from the southeastern Gulf of California, Mexico Naturalis
Hendrickx, M.E..
A new species of the palaemonid shrimp genus Chacella Bruce is described from the Gulf of California, Mexico, in the eastern Pacific, and represents the second known species of this genus. The type-species, Chacella kerstitchi (Wicksten, 1983), was described from a single female captured off the coast of San Carlos, Sonora, in the Central Gulf of California.
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Caridea; Palaemonidae; Chacella tricornuta spec. nov. Gulf of California; 42.74.
Ano: 1990 URL: http://www.repository.naturalis.nl/record/318292
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A new species of Polyonyx Stimpson, 1858, of the P. sinensis group (Crustacea: Decapoda: Anomura: Porcellanidae) commensal with a chaetopterid worm from Peninsular Malaysia Naturalis
Ng, P.K.L.; Sasekumar, A..
A new species of porcellanid crab, Polyonyx vermicola, belonging to the P. sinensis group is described from Selangor, Peninsular Malaysia. The species is an obligate commensal of tubes of the chaetopterid worm Sasekumaria selangora Rullier, 1976 (Polychaeta). Polyonyx vermicola is differentiated from all congeners by its small size, possessing a more rectangular carapace, proportionately longer carpus on the larger cheliped, strongly gaping cheliped fingers, the tips of which are turned outwards, the outer surface of each cheliped fingers lined with a row of small granules, and having the ventral margin of the third ambulatory propodus armed with strong spinules.
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Porcellanidae; Polyonyx vermicola spec. nov.; Chaetopteridae; Polychaeta; Worm commensal; Peninsular Malaysia; 42.74.
Ano: 1993 URL: http://www.repository.naturalis.nl/record/318927
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A re-examination of Periclimenaeus trispinosus Bruce and P. orbitospinatus Bruce (Crustacea: Decapoda: Pontoniinae) Naturalis
Bruce, A.J..
The holotype specimens of Periclimenaeus trispinosus Bruce, 1969, and Periclimenaeus orbitospinatus Bruce, 1969, are re-examined, re-described and illustrated. Apopontonia tridentata Bruce, 1988, is a junior synonym of Periclimenaeus orbitospinatus, which is transferred to the genus Apopontonia.
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Pontoniinae; Indo-West Pacific; Periclimenaeus; Apopontonia; Types; Re-descriptions; Synonymy; 42.74.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/217440
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A relationship between antimicrobial peptide gene expression and capacity of a selected shrimp line to survive a Vibrio infection ArchiMer
De Lorgeril, Julien; Gueguen, Yannick; Goarant, Cyrille; Goyard, Emmanuel; Mugnier, Chantal; Fievet, Julie; Piquemal, D; Bachere, Evelyne.
Understanding of antimicrobial defence mechanisms of penaeid shrimp should help in the design of efficient strategies for the management and disease control in aquaculture. In this study, we have specifically analysed the expression in circulating hemocytes of antimicrobial peptides (AMPs) encoding genes, such as PEN2 and PEN3, ALF, crustin, lysozyme and a putative cysteine-rich peptide. We evidenced a relationship between the level of expression of some AMPs and the successful response of the shrimp, Litopenaeus stylirostris, to circumvent a pathogenic Vibrio penaeicida infection. Additionally, significant differences in some AMP transcript amounts are evidenced between control, non-selected shrimp line and the third generation breeding of shrimp selected...
Tipo: Text Palavras-chave: Real time PCR; Cysteine rich peptide; Crustin; Anti LPS factor; Lysozyme; Penaeidins; Immune response; Vibrio penaeicida; Penaeid; Decapoda; Crustacean.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4524.pdf
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A revision of Myra Leach, 1817 (Crustacea: Decapoda: Leucosioidea) Naturalis
Galil, B.S..
A study of major collections led to a revision of the Indo-Pacific leucosioid genus Myra Leach, 1817. The systematic status and nomenclatural disposition of each species was assessed, and many were diagnosed based on examination of the type material. A new genus, Myrine, is established for M. acutidens (Ihle, 1918) and M. kesslerii (Paulson, 1875). The genus Myrodes Bell, 1855, is synonymized with Myra. Nine species are retained as valid: M. affinis Bell, 1855, M. australis Haswell, 1880, M. brevimana Alcock, 1896, M. elegans Bell, 1855, M. eudactyla (Bell, 1855), M. fugax (Fabricius, 1798), M. grandis Zarenkov, 1990, M. mammillaris Bell, 1855, and M. subgranulata Kossmann, 1877. Five new species are established: M. celeris, M. currax, M. curtimana, M....
Tipo: Article / Letter to the editor Palavras-chave: Decapoda; Leucosioidea; Myra; Myrodes; Myrine; New genus; New species; Indo-Pacific; 42.74.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/217456
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A revision of the genus Arcania Leach, 1817 (Crustacea: Decapoda: Leucosioidea) Naturalis
Galil, B.S..
A study of major collections led to a revision of the Indo-Pacific leucosioid genus Arcania Leach, 1817. Ixoides cornutus MacGilchrist, 1905 is recognized as belonging to the genus, and four new species are established: A. echinata, A. foliolata, A. muricata and A. fungilifera; in all, fifteen Arcania species are recognized. All species are described and illustrated, extended synonymies are given, and a key for their identification is provided.
Tipo: Article / Letter to the editor Palavras-chave: Decapoda; Leucosioidea; Arcania; Ixoides; New species; Indo-Pacific; 42.74.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/217442
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A revision of the genus Matuta Weber, 1795 (Crustacea: Brachyura: Calappidae) Naturalis
Galil, B.S.; Clark, P.F..
Introduction Amid the gaudily-coloured parade of tropical crabs few are more splendidly patterned than the matutine genera. But the patterns decorating these species brought about taxonomic disarray and from the very beginning they baffled their researchers. Already in 1817 Leach remarked: "the characters which distinguish the species are very obscure". MacLeay (1838) wrote in exasperation: "there are many species confounded together under the name Matuta victor, I do not consider the above names of the family and genus to possess any authority". Stebbing (1905) concurred: "From the interminable discussion of minute differences, as to the importance of which distinguished authors neither agree one with another nor always with themselves, it seems safe to...
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Brachyura; Calappidae; Matuta; Taxonomy; New species; New genus. Matuta Weber; 1795 is revised; Three new genera and two new species are established; Detailed synon- ymies are listed; All taxa are described and illustrated and a key is provided.; 42.74.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/317786
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Alimentação natural do camarão sete-barbas, Xiphopenaeus kroyeri (Heller) (Crustacea, Decapoda), na Armação do Itapocoroy, Penha, Santa Catarina Zoologia
Branco,Joaquim Olinto; Moritz Júnior,Heder Cassiano.
The feeding of X. kroyeri (Heller, 1862) was analyzed during the period from August/98 to July/99 using the frequency of occurrence, frequency of points and feeding index methods. The species presents a broad trophic specter and diversified, composed by 30 items: Gammaridae, organic matter, Acetes americanus, Polychaeta, Globigerina and Osteichthyes were the most explored items.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Decapoda; Xiphopenaeus kroyeri; Feeding habits; Natural diet.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000100004
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Anatomy and physiology of digestive tract of crustaceans decapods reared in aquaculture ArchiMer
Ceccaldi, H.
The digestive tract of crustacea is complex. It is composed of a shor t oesophagum, a stomach with two bags, and internal wall with appendags specialized in grinding of feeds. These hard mastication pieces represent the gastric mill. Setae, filters included in the stomach structure allow the separation between food particles and liquid compounds. Those one are coming over through filters and more on to the digestive gland tubules or mid gut gland. In this organ, several types of cells play specialized functions: absorption, enzyme secretion, stocking function. Some cells of a new type, with undefined function, may be neurosecretions function, have been described recently. The end of tubules of digestive gland exhibits cells with embryonic characteristics....
Tipo: Text Palavras-chave: Decapoda; Neurosecretion; Feed; Rearing; Digestive glands; Enzymes; Stomach; Crustacean culture.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1486.pdf
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Approche ecophysiologigue et ultrastructurale de l'osmoregulation chez les crustaces decapodes ArchiMer
Pequeux, A; Lignon, J.
This paper deals mostly with recent physiological data on ion transport across the gill tissue and an attempt is made to correlate them with blood osmoregulation and ecological distribution in euryhaline decapods. A particular attention is paid to the gills of the fully euryhaline Chinese crab Eriocheir sinensis . Supporting this ecophysiological approach, there is an important ultrastructural analysis of the gill epithelium under various salinity conditions. The possible part played by the cuticle in ions movements is also considered.
Tipo: Text Palavras-chave: Eriocheir sinensis; Cancer pagurus; Maia squinado; Carcinus maenas; Decapoda; Malacostraca; Ion transport; Gills; Ecophysiology; Cuticles; Ultrastructure; Salinity tolerance.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/1987/acte-1387.pdf
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Aspectos da reprodução do caranguejo guaiamum, Cardisoma guanhumi Latreille (Crustácea, Decapoda, Gecarcinidae) da Baía de Sepetiba, Rio de Janeiro, Brasil Zoologia
Silva,Rejane da; Oshiro,Lídia Miyako Yoshii.
The objective of this work is to get knowledge about the "guaiamum" crabs reproduction. Two hundred and twenty four crabs were caught from August'96 to July'97. Their sex carapace color and morphometric data were obtained. The stages of gonadal development were macroscopically determined and the eggs diameter was measured. Three colors patters for the carapace for males, and four patters for females. Five stages of gonadal development were observed in female crabs, and two stages were observed for males. The first sexual maturity was estimated 53,0 mm carapace width for the females and 52,0 mm for the males. The ovigerous females occurred from March to May. The individual fecundity varied from 103.300 to 366.400 eggs. The eggs mean diameter was 0,39 mm.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Decapoda; Gecarcinida; Cardisoma guanhumi; Reproduction; Land crabs; Mangrove.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000600007
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Aspectos reprodutivos de Potimirim glabra (Kingsley) (Crustacea, Decapoda, Atyidae) no Rio Sahy, Mangaratiba, Rio de Janeiro, Brasil Zoologia
Lima,Giovana Valverde; Oshiro,Lídia Miyako Yoshii.
The reproductive aspects of the freshwater shrimp Potimirim glabra (Kingsley, 1878) were studied from September 1997 to February 1999. Monthly, samples were collected with sieves, on the river edge, under the edging vegetation or in small pools. At the laboratory, shrimps were sexed and measured in their total lenght, from the tip of the rostrum to the end of telson with precision callipers. The ovigerous shrimps were separated and counted for fecundity determination. The eggs diameter was measured with calibrated stereomicroscope. A total of 3281 shrimps were collected, among which, 47% male, 46% female (13.4% ovigerous females) and 7% young shrimps. The Sex ratio was 1:1. Ovigerous females were present during all seasons, but the reproductive peak...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crustacea; Decapoda; Atyidae; Freshwater shrimp; Potimirim glabra; Reproduction; Sahy River; Rio de Janeiro State.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000300024
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Aspectos reprodutivos do caranguejo guaia, Menippe nodifrons Stimpson (Crustacea, Decapoda, Xanthidae) da Baía de Sepetiba, Rio de Janeiro, Brasil Zoologia
Oshiro,Lidia Miyako Yoshii.
The objective of this work was to get some knowledge about the Guaia stone crab reproduction. The sampling was monthly obtained in the intertidal zone at the Ibicuí Rock Beach. The 638 crabs were collected from August, 1995 to March, 1997. In this total amount 293 were males and 345 (41 ovigerous crabs) were female crabs. Biometrical data informing the total width and length were taken, and gonadal stage was checked macroscopically. The total male width range was between 7.9 to 67.1 mm, while in the female crabs it was between 4.4 to 79.3 mm. The female ones were bigger than the male ones. The ovigerous female crabs were found mainly on Spring and Summer and it probably indicates the reproduction season. The carapace width range of the ovigerous female...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Decapoda; Xanthidae; Menippe nodifrons; Reproduction; Stone crab; Sepetiba Bay.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000300019
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Assessment from space of mangroves evolution in the Mekong Delta, in relation to extensive shrimp farming ArchiMer
Tong, P. H. S; Auda, Y; Populus, Jacques; Aizpuru, M; Al Habshi, A. Al; Blasco, F.
This study is an attempt to produce an assessment of the impact of shrimp aquaculture in the Mekong Delta (Viet Nam) on mangrove ecosystems. For this exercise we selected two sub-areas (Ca Mau and Tra Vinh provinces) encompassing a variety of land uses and ecological conditions. Twenty stations in Tra Vinh and 15 stations in Ca Mau have been surveyed several times from September 2000 to March 2002. Field investigations included mangrove soils studies, measurements of pH and salinity of the water, analysis of mangrove flora, and density and structure of the vegetation. Four Systeme Probatoire de l'Observation de la Terre (SPOT) scenes were used for the discrimination of mangrove types and for the delineation of landscape units. For the first time, five...
Tipo: Text Palavras-chave: Crevette; Aquiculture; Exploitation agricole; Mangrove; Discrimination; Indice végétation; Extrême Orient; Asie; Macrura; Decapoda; Crustacea; Arthropoda; Invertebrata.
Ano: 2004 URL: https://archimer.ifremer.fr/doc/2004/publication-2303.pdf
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Associated occurrence of Cyclocoeloma tuberculata Miers, 1880 (Decapoda: Majidae) and species of Discosomatidae (Anthozoa: Corallimorpharia) Naturalis
Hartog, J.C. den.
Several cases are reported of associated occurrence of the crab Cyclocoeloma tuberculata Miers, 1880 (Majidae) and species of Discosomatidae (Anthozoa: Corallimorpharia) carried on the crab's carapace, and colonies of Xeniidae (Alcyonacea) carried on the ambulatory legs. This is the first record of an association of a crab and a corallimorpharian.
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Brachyura; Majidae; Cyclocoeloma tuberculata; Anthozoa; Corallimorpharia; Discosoma; Association; Indo-West-Pacific; Indonesia; Snellius II Expedition 1984; 42.74.
Ano: 1990 URL: http://www.repository.naturalis.nl/record/319380
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