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Description

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Oscaecilia osae is a slender, medium-sized caecilian, with the holotype measuring 382 mm in total length. This species is highly attenuated, especially when compared to the other more robust members of its genus. It has a high count of primary annuli (232), while the secondary annuli are completely absent. Scales are small, ovoid to elliptical in shape, whitish and transparent in appearance, and begin at annulus 175 (thus present in 57 of the 232 annuli). Oscaecilia osae has two indistinct collars and the collar grooves are incomplete ventrally. The vent appears round in the preserved holotype but in life is likely transverse; the vent lacks a disc, and the aperture has 12 lobes. There is an absence of anal glands and the end of the body is somewhat acute with an unsegmented terminal shield (other members of the genus lack terminal shields). The surface of the tongue is textured. The teeth are thick, short, widely-spaced, and slightly recurved. The tentacle is below the naris and just slightly posterior to it, and is not visible in dorsal view. Numerous punctate glands are present, evenly distributed on the body, but more concentrated anteriorly and laterally (Lahanas and Savage 1992).This species also shares the following characteristics with others in the genus Oscaecilia: absent true tail; absent terminal keel; presence of splenial teeth; absent diastema between the palatine and vomerine teeth; vomeropalatine tooth row positioned more posteriorly; presence of narial plugs (tuberculate in O. osae) on the tongue; and eyes positioned underneath bone, rendering them invisible (Lahanas and Savage 1992; Savage and Wake 2001). The coloration appears lavender, but closer inspection (x 60) reveals a darker ground color with many closely-spaced pinkish-cream punctate glands. Anteriorly and laterally, the pinkish-cream markings become closer together and eventually fuse giving rise to the more pinkish appearing head and ventral region. In preserved specimens, the lavender areas appear grayish-brown (Lahanas and Savage 1992).It was the first of its genus to be discovered in Costa Rica (Lahanas and Savage 2002).A Spanish-language species account can be found at the website of Instituto Nacional de Biodiversidad (INBio) (http://darnis.inbio.ac.cr/FMPro?-DB=UBIpub.fp3&-lay=WebAll&-Format=/ubi/detail.html&-Op=bw&id=4327&-Find).

References

  • Bolaños, F., Wake, M. and Wilkinson, M. (2004). Oscaecilia osae. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 16 January 2008.
  • Lahanas, P. N., and Savage, J. M. (1992). ''A new species of caecilian from the Peninsula de Osa of Costa Rica.'' Copeia, 1992(3), 703-708.

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Distribution and Habitat

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Oscaecilia osae has only been located on the Península de Osa in south-western Costa Rica at 3-40 m above sea level (Bolaños et al. 2004). It occurs in tropical lowland wet forest. The holotype was discovered on a rainy night in a flooded grassy airstrip, 2 m from a stream and 3 m from the edge of a forest, at an elevation of 3 m above sea level (Lahanas and Savage 1992).
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Life History, Abundance, Activity, and Special Behaviors

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There are no known population declines or threats to this species, primarily because of a lack of information. This species, like most caecilians, is considered Data Deficient (IUCN 2006). However, it does occur in a protected area (Parque Nacional Corcovado).
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Life History, Abundance, Activity, and Special Behaviors

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Nothing has been published on the life history of this species, but it is likely to be fossorial, as are the other members of the genus.
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Behavior ( Spanish; Castilian )

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Son nocturnas.

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Habitat ( Spanish; Castilian )

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Viven en el piso del Bosque Tropical Muy Húmedo.

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Diagnostic Description ( Spanish; Castilian )

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Los ojos no son visibles, cubiertos por hueso. La superficie de la lengua está ligeramente estructurada. Los dientes son largos, cortos y un poco curvos y ampliamente espaciados. Tiene dos collares indistintos; los surcos del collar están incompletos ventralmente. Tiene un alto índice de atenuación (longitud total / diámetro de la mitad del cuerpo= 0.91). Posee un número alto de primarias (232) y carece de anillo secundario. Las escamas empiezan en el anillo primario 175, pequeño (o.5-1.0 mm.) de forma ovoide a elíptico, de color blancuzco y transparente. Las glándulas anales están ausentes. La forma del cuerpo es ligeramente agudo, con un escudo terminal sin segmentos. La coloración en vida es lavanda uniforme más claro en la parte anterior y en la parte ventral. En el ejemplar preservado, las áreas de color lavanda, pasan a color café grisáceo.

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Diagnostic Description ( Spanish; Castilian )

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Localidad del tipo: En la pista de aterrizaje en la estación Sirena, Península de Osa, Osa, Puntarenas, Costa Rica.
Depositario del tipo: Holotipo: LACM 138542
Recolector del tipo:
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Conservation Status ( Spanish; Castilian )

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Es considerada como una especie amenazada de extinción y está protegida y regulada por la Ley de Conservación de la Vida Silvestre No. 7317, además de la Ley Orgánica del Ambiente No. 7554 y el decreto No. 26435-MINAE.

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Distribution ( Spanish; Castilian )

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Distribucion en Costa Rica: ESPECIE ENDEMICA DE COSTA RICA.
Ha sido comunicada sólo para la Estación Biológica Sirena (Parque Nacional Corcovado), Península de Osa, Cantón de Osa, Puntarenas, a 3 m.s.n.m..


Distribucion General:

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Oscaecilia osae ( Catalan; Valencian )

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Oscaecilia osae és una espècie d'amfibis gimnofions de la família Caeciliidae. És endèmica de Costa Rica. Els seus hàbitats naturals inclouen boscos secs tropicals o subtropicales, plantacions, jardins rurals i zones prèviament boscoses ara molt degradades.

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Oscaecilia osae: Brief Summary ( Catalan; Valencian )

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Oscaecilia osae és una espècie d'amfibis gimnofions de la família Caeciliidae. És endèmica de Costa Rica. Els seus hàbitats naturals inclouen boscos secs tropicals o subtropicales, plantacions, jardins rurals i zones prèviament boscoses ara molt degradades.

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Oscaecilia osae

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Oscaecilia osae is a species of caecilian in the family Caeciliidae. It is endemic to Costa Rica and is only known from the Golfo Dulce area, on the Pacific Ocean side of Costa Rica.[1][3][4] The specific name osae refers to its type locality, the airstrip at La Sirena, being located on the Osa Peninsula.[2] It is also known as the airstrip caecilia[1] or airstrip caecilian.[3][4]

Description

The holotype, an adult female,[a] measures 382 mm (15.0 in) in total length. The body is highly attenuated;[2][4] the body width is 4–5 mm (0.16–0.20 in).[2] The eyes are not visible. The primary annulus count is high (232), whereas the secondary annuli are completely absent. Scales are small and present from the primary annulus 175. Coloration is uniform lavender, becoming lighter anteriorly and ventrally. The coloration is caused by tiny, closely spaced pinkish-cream punctate glands on darker background; when these become closer together and eventually fuse, they give rise to the more pinkish appearance of the head and ventral region.[2][4]

Habitat and conservation

Oscaecilia osae is a subterranean species that occurs in lowland rainforest at elevations below 240 m (790 ft). There appear not to be major threats to this species, although its distribution and ecology are poorly known. It is well protected by the Corcovado National Park.[1]

References

  1. ^ a b c d IUCN SSC Amphibian Specialist Group (2020). "Oscaecilia osae". IUCN Red List of Threatened Species. 2020: e.T59584A54382793. doi:10.2305/IUCN.UK.2020-3.RLTS.T59584A54382793.en. Retrieved 17 November 2021.
  2. ^ a b c d e Lahanas, Pete N. & Savage, Jay M. (1992). "A new species of caecilian from the Península de Osa of Costa Rica". Copeia. 1992 (3): 703–708. doi:10.2307/1446146. JSTOR 1446146.
  3. ^ a b c Frost, Darrel R. (2019). "Oscaecilia osae Lahanas and Savage, 1992". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 4 November 2019.
  4. ^ a b c d "Oscaecilia osae". AmphibiaWeb. University of California, Berkeley. 2009. Retrieved 4 November 2019.
  1. ^ The specimen is first defined as "an adult female" , but later in the species description referred to as "a subadult of undeterminable sex". Table 1 defines it as an adult, without specifying sex.
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Oscaecilia osae: Brief Summary

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Oscaecilia osae is a species of caecilian in the family Caeciliidae. It is endemic to Costa Rica and is only known from the Golfo Dulce area, on the Pacific Ocean side of Costa Rica. The specific name osae refers to its type locality, the airstrip at La Sirena, being located on the Osa Peninsula. It is also known as the airstrip caecilia or airstrip caecilian.

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Oscaecilia osae ( Spanish; Castilian )

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Oscaecilia osae es una especie de anfibio gimnofión de la familia Caeciliidae.

Es endémica de la Península de Osa (Costa Rica): se ha hallado en el parque nacional Corcovado.[2]​ Se encuentra a una altitud de hasta 240 msnm.

Referencias

  1. Bolaños, Wake, Wilkinson y Chaves (2008). «Oscaecilia osae». Lista Roja de especies amenazadas de la UICN (en inglés). ISSN 2307-8235. Consultado el 7 de octubre de 2011.
  2. Oscaecilia osae en el sitio Archivado el 28 de mayo de 2017 en Wayback Machine. del INBio (Instituto Nacional de Biodiversidad de Costa Rica).

Bibliografía

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Oscaecilia osae: Brief Summary ( Spanish; Castilian )

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Oscaecilia osae es una especie de anfibio gimnofión de la familia Caeciliidae.

Es endémica de la Península de Osa (Costa Rica): se ha hallado en el parque nacional Corcovado.​ Se encuentra a una altitud de hasta 240 msnm.

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Oscaecilia osae ( Basque )

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Oscaecilia osae Oscaecilia generoko animalia da. Anfibioen barruko Caeciliidae familian sailkatuta dago, Gymnophiona ordenan.

Erreferentziak

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Oscaecilia osae: Brief Summary ( Basque )

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Oscaecilia osae Oscaecilia generoko animalia da. Anfibioen barruko Caeciliidae familian sailkatuta dago, Gymnophiona ordenan.

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Oscaecilia osae ( French )

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Oscaecilia osae est une espèce de gymnophiones de la famille des Caeciliidae[1].

Répartition

Cette espèce est endémique du Costa Rica[1]. Elle se rencontre jusqu'à 40 m d'altitude dans la péninsule d'Osa[2].

Description

La femelle holotype mesure 382 mm[3].

Étymologie

Son nom d'espèce, composé de osa et du suffixe latin -ensis, « qui vit dans, qui habite », lui a été donné en référence au lieu de sa découverte, la péninsule d'Osa.

Publication originale

  • Lahanas & Savage, 1992 : A new species of caecilian from the Península de Osa of Costa Rica. Copeia, vol. 1992, no 3, p. 703-708.

Notes et références

  1. a et b Amphibian Species of the World, consulté lors d'une mise à jour du lien externe
  2. AmphibiaWeb. University of California, Berkeley, CA, USA, consulté lors d'une mise à jour du lien externe
  3. Lahanas & Savage, 1992 : A new species of caecilian from the Península de Osa of Costa Rica. Copeia, vol. 1992, no 3, p. 703-708.
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Oscaecilia osae: Brief Summary ( French )

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Oscaecilia osae est une espèce de gymnophiones de la famille des Caeciliidae.

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Oscaecilia osae ( Portuguese )

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Oscaecilia osae é uma espécie de anfíbio gimnofiono da família Caeciliidae.

É endémica da Costa Rica.

O seu habitat natural inclui florestas tropicais e subtropicais húmidas de baixas altitudes, plantações, jardins rurais e antigas florestas altamente degradadas.

Referências

  1. Federico Bolaños, Marvalee Wake, Mark Wilkinson, Gerardo Chaves (2008). Oscaecilia osae (em inglês). IUCN 2008. Lista Vermelha de Espécies Ameaçadas da IUCN de 2008 . Página visitada em 5 de Novembro de 2009.
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Oscaecilia osae: Brief Summary ( Portuguese )

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Oscaecilia osae é uma espécie de anfíbio gimnofiono da família Caeciliidae.

É endémica da Costa Rica.

O seu habitat natural inclui florestas tropicais e subtropicais húmidas de baixas altitudes, plantações, jardins rurais e antigas florestas altamente degradadas.

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Oscaecilia osae ( Vietnamese )

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Bài viết này cần thêm chú thích nguồn gốc để kiểm chứng thông tin. Mời bạn giúp hoàn thiện bài viết này bằng cách bổ sung chú thích tới các nguồn đáng tin cậy. Các nội dung không có nguồn có thể bị nghi ngờ và xóa bỏ.

Oscaecilia osae là một loài lưỡng cư thuộc họ Caeciliidae. Đây là loài đặc hữu của Costa Rica. Môi trường sống tự nhiên của chúng là rừng ẩm vùng đất thấp nhiệt đới hoặc cận nhiệt đới, các đồn điền, vườn nông thôn, và rừng thoái hóa nghiêm trọng.

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Oscaecilia osae: Brief Summary ( Vietnamese )

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Oscaecilia osae là một loài lưỡng cư thuộc họ Caeciliidae. Đây là loài đặc hữu của Costa Rica. Môi trường sống tự nhiên của chúng là rừng ẩm vùng đất thấp nhiệt đới hoặc cận nhiệt đới, các đồn điền, vườn nông thôn, và rừng thoái hóa nghiêm trọng.

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