Chthonerpeton indistinctum
WebChapter Reproduction in Caecilians Marvalee H. Wake Chapter 407 Accesses 11 Citations 3 Altmetric Abstract Caecilians (Order Gymnophiona) are limbless, elongate, burrowing or swimming amphibians that inhabit the tropics of most of the world. Their reproductive biology includes several modes. Webexample, Chthonerpeton indistinctum (Wied- ersheim, 18791, Siphonops annulatus, Schis- tometopum thomensis, Uraeotyphlus oxyurus, Hypogeophis rostratus, and Z. glutinosus (Pe- ter, 1894), Hypogeophis rostratus (Lawson, ’63), anterior four or five vertebrae of 24 spe- cies (Taylor, ’771, and the fossil Apodops pricei
Chthonerpeton indistinctum
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WebSep 16, 2024 · Genus: Chthonerpeton Species: C. arii – C. braestrupi – C. exile – C. indistinctum – C. noctinectes – C. onorei – C. perissodus – C. tremembe – C. … 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.
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 ...
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. 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.
WebJan 14, 2008 · In addition to its status as the largest lungless tetrapod known, and the only known lungless caecilian, this species has a suite of highly unusual morphological features that sets it apart from all other tetrapods, including sealed choanae (internal nostrils), complete loss of pulmonary arteries and veins, novel cranial architecture, and a novel …
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 inamax bluetooth 4.0WebThirty two individuals of Chthonerpeton indistinctum were used, being these the only species which we managed to adapt to life and reproduction in captivity (BARRIO 1969). They were collected in the marginal zone of the Delta del Parana between the towns of Escobar and Ingeniero Maschwitz (Province of Buenos Aires). inch psWebAppearance. 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 ... inch punch powerWebChthonerpeton indistinctum Taxonomy ID: 420416 (for references in articles please use NCBI:txid420416) current name Chthonerpeton indistinctum (Reinhardt and Lutken, … inch ra mmWebChthonerpeton 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. inch quote marksWebJul 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... inch pxWebThe 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 … inamax bluetooth driver