Chthonerpeton indistinctum

Chthonerpeton indistinctum is a species of caecilian in the family Typhlonectidae. It is found in northeastern Argentina, Paraguay, Uruguay, and southeastern Brazil. The common name Argentine caecilian has been coined for it. See more Chthonerpeton indistinctum is a snakelike amphibian with no limbs. It can grow to about 53 cm (21 in). The body has 70 to 80 transverse folds, giving it a segmented appearance. The head has a pair of sensory See more C. indistinctum is found in Paraguay, Uruguay, Brazil and Argentina at altitudes ranging up to 1,000 m (3,300 ft). It is partially terrestrial and partly aquatic, possibly having … See more This species is viviparous, giving birth to live young. It is considered to have several characteristics which indicate it is more primitive than other, … See more WebThe case of Chthonerpeton is more illustrative, as a major spiral becomes visible from diplonema and keeps during metaphase I, through metaphase II - a fact not observed …

Chthonerpeton indistinctum - Wikiwand

Web-Histological analysis revealed three different stages in the development of ovarian follicles of Chthonerpeton indistinctum. These stages are identified by (1) location of the oocyte in the ovary wall, (2) oocyte morphology and staining characteristics, (3) development of the zona pellucida, and (4) orga nization of the follicular layer. WebC. indistinctum and the comparisons with the other five known species of Chthonerpeton were based on data reported in the ... Chthonerpeton perissodus (pentagon), Chthonerpeton indistinctum (circle), and Chthonerpeton viviparum (asterisk). Locality data from Nussbaum (1986), Gudynas et al. (1988), Cascon and Lima-Verde (1994), … design with memory https://frmgov.org

Dermophis mexicanus 1. The Vertebrae, With Comparisons to …

WebDec 23, 2024 · Chthonerpeton indistinctum (Reinhardt & Lütken, 1862) Lectotype: ZMUC R-0235. [designated by Taylor (1968: 299)] Type locality: “Buenos Ayres”, Argentina. Combinations . Siphonops indistinctus Reinhardt & Lütken, 1862: 203 [original combination] Chthonterpeton indistinctum — Peters, 1880: 40 [subsequent combination] Synonyms ... WebIn addition to the C cells, the ultimobranchial gland of the apodan Chthonerpeton indistinctum contains cholinergic and purinergic neuronal endings. Although the presence of sympathetic neurons has been demonstrated in the frog R. pipiens, most anurans investigated do not exhibit innervation of the ultimobranchial glands. The condition of the ... WebAn Chthonerpeton indistinctum[2][3] in uska species han Amphibia nga syahan ginhulagway ni Johannes Theodor Reinhardt ngan Christian Frederik Lütken hadton … chuck for sds drill

Gametogenesis en Chthonerpeton indistinctum …

Category:The Cytogenetics of Chthonerpeton Indistinctum (Amphibia: …

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Chthonerpeton indistinctum

Comparative morphology and evolution of the lungless caecilian

WebGametogenesis in Chthonerpeton indistinctum (Gymnophiona: Typhlonectidae) Histologically, the gonads of Chthonerpeton indistinctum are similar to others described for the orden Gymnophiona. The testes lobes are divided into structural units or locules. Spermatogenesis takes place in synchronic cysts of germinal cells. WebSep 1, 1997 · Circulatov system Aspects of the heart and circulatory system of Chthonerpeton indistinctum were described by Acolat (1939). Sawaya (1 948) and Toews & Macintyre (1978) described the heart and aortic arches of adult qphlonecta compresskauda, and Peters (1875) described these structures in a foetal specimen of …

Chthonerpeton indistinctum

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WebHistological analysis revealed three different stages in the development of ovarian follicles of Chthonerpeton indistinctum. These stages are identified by (1) location of the oocyte in the ovary wall, (2) oocyte morphology and staining characteristics, (3) development of the zona pellucida, and (4) orga- nization of the follicular layer. Webpatterns between this species and Chthonerpeton indistinctum is under-taken. THE gymnophionans are unique among Am-phibia insofar as reproduction is accom-plished through internal fertilization by use of an eversible cloaca. However, prior to 1969, di-rect observations of copulation in caecilians had not been recorded (Taylor, 1968; Wake, …

WebJun 1, 2015 · This study of Chthonerpeton indistinctum (Reinhardt & Lütken, 1861) considers 25 morphometric characters, teeth-counts and sex, based on 96 specimens. A multivariate analysis of characters and ... WebChthonerpeton indistinctum is a species of caecilian in the family Typhlonectidae. It is found in northeastern Argentina, Paraguay, Uruguay, and southeastern Brazil. Common …

WebHistológicamente, las gónadas de Chthonerpeton indistinctum son similares a las ya descritas para otras especies del orden Gymnophiona. Los lóbulos testiculares se hallan compartimentados en unidades estructurales denominadas lóculos. La espermatogénesis ocurre en cistos sincrónicos de células germinales. WebMinhocão, Cecília (Chthonerpeton indistinctum) Ordem Squamata. Saiba mais. Família Leiosauridae. Papa-vento (Anisoleps grilli) Papa-vento-do-Sul (Anisolepis undulatus) Papa-vento-do-Sul (Anisolepis undulatus) Iguaninha (Enyalius iheringii) Papa-vento-de-barriga-lisa (Urostrophus vautieri) Família Leptotyphlopidae. Epictia munoai ; Família ...

WebChthonerpeton indistinctum (Reinhardt and Lütken, 1862) Amphibian Species of the World Amphibian Species of the World 6.1, an Online Reference Basic Search [?] Search only within taxon (autocomplete list) Guided Search [?] Taxon name (exact or partial with wildcard*) *Will not find Nomina inquirenda; use Basic Search (above) for that purpose.

WebDomain: Eukaryota • Regnum: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Infraphylum: Gnathostomata • Superclassis: Tetrapoda • Classis: Amphibia • Subclassis: … chuck for tiresWebTyphlonectes natuns and Chthonerpeton indis- tinctum. Primary olfactory and vomeronasal projec- tions were examined in an ichthyophiid, I. kohtaoensis (five animals), a caeciliaid, D. mexi- cunus (five animals), and a typhlonectid, T. na- turn (one animal). METHODS chuck for shopsmith latheWebJul 6, 2024 · CHTHONERPETON INDISTINCTUM (Argentina Caecilian). PREDATION. July 2024 Authors: Lucas De Souza Almeida São Paulo State University Cláudio Dias Timm Figures Discover the world's research Content... chuck for rikon mini latheWebChthonerpeton indistinctum An Chthonerpeton indistinctum [2] [3] in uska species han Amphibia nga syahan ginhulagway ni Johannes Theodor Reinhardt ngan Christian Frederik Lütken hadton 1862. An Chthonerpeton indistinctum in nahilalakip ha genus nga Chthonerpeton, ngan familia nga Caeciliidae. chuck for pillar drillWebJul 6, 2024 · CHTHONERPETON INDISTINCTUM (Argentina Caecilian). PREDATION. July 2024 Authors: Lucas De Souza Almeida São Paulo State University Cláudio Dias Timm … chuck fortner teslaWebAppearance. Chthonerpeton indistinctum is a snakelike amphibian with no limbs. It can grow to about 53 cm (21 in). The body has 70 to 80 transverse folds, giving it a segmented appearance. The head has a pair of sensory tentacles between the nostrils and the eyes, and this area of skin is white. The body is black above and dark grey beneath ... chuck foster attorney mayfield kyWebJun 12, 2024 · imported from iDigBio. uuid:78d42323-3d50-466f-8f19-7a3de538fb4e Occurrence ID:urn:catalog:cas:herp:85521 chuck for wood lathe amazon