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Description

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In this small species of Hyloxalus males attain a snout-vent length of 19.1 mm and females reach 20.5 mm. The discs on the fingers and toes are expanded, with those on the fingers about half again the width of the penultimate phalanx and those on the toes about twice the width of the penultimate phalanx. Finger I is longer than Finger II, and Finger III is not swollen in males. Lateral fringes are absent on the fingers and toes; outer and inner tarsal folds are absent, but a low, indistinct outer tarsal tubercle is present. Webbing is absent between the toes. Yellowish tan dorsolateral stripes are distinct on the head and diffuse on the body; pale oblique lateral stripes are diffuse and present only in the groin; ventrolateral stripes are absent. The dorsum is brown. The flanks are creamy tan with irregular brown spots, and the sides of the head are dark brown above and dull yellow below. The dorsal surfaces of the upper arms are dull yellow, and the dorsal surfaces of the digital scutes are gray, The belly is creamy yellow with a greenish tint, and the ventral surfaces of the limbs are dull yellow. In males, the throat and chest are brown. The iris is coppery bronze with a median horizontal dark brown streak. A median lingual process is absent. The testes are white.A tadpole in Stage 34 has a body length of 10.0 mm and a total length of 25.3 mm; the body is ovoid, wider than high. The snout is rounded in dorsal view and in profile. and the moderately large eyes are situated dorsally, directed dorsolaterally, and not visible from below. The spiracle is sinistral, with the tube being short and attached to the body throughout its length. The spiracular opening is directed posteriorly just below the midline at about the midlength of the body. The cloacal tube is dextral, short, cone-shaped, and attached to the ventral fin. Caudal musculature is robust, equal in height throughout the proximal one-third of the tail, and gradually diminishes to a pointed tip. The dorsal fin originates on the caudal musculature, is highest at about two-thirds the length of the tail, and gradually diminishes to an acutely rounded tip. The ventral fin originates on the body and is highest at about three-fifths the length of the tail. The oral disc is directed anteroventrally, with the median half of anterior labium being bare; elsewhere the labia bear a single row of moderately long, pointed marginal papillae. The labia have shallow lateral folds. Submarginal papillae are absent. The jaw sheaths are slender and finely serrate. The anterior sheath is in the form of a broad arch, while the posterior sheath is broadly V-shaped. The labial tooth row formula is 2(1)/3, with row A2 slightly longer than the other rows. In life, the body and tail are gray. In preservative, the dorsum and sides of the body are brown, the belly is cream, the caudal musculature is pale creamy tan with small, irregular brown spots, and the caudal fins are translucent with brown spots; guanophores are scattered on the body and tail.This species was transferred to the genus Hyloxalus from the genus Allobates by Santos et al. (2009).
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Distribution and Habitat

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This species is known only from the type locality at the eastern base of the northern part of Cordillera Central in northern Peru. The type locality is a stream in a shallow ravine in cutover humid tropical forest. The frogs were active on wet boulders in the stream by day.
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Life History, Abundance, Activity, and Special Behaviors

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This species exhibits parental care. One male with a snout-vent length of 19.1 mm was found transporting seven tadpoles on its back. Back-riding tadpoles had body lengths of 3.7–4.8 mm (x = 4.36) and total lengths of 11.0–12.9 mm (x = 11.91). These young tadpoles are dark brown with cream venters and have jaw sheaths and a labial tooth row formula of 2(1)/2. Older, free-living tadpoles in Stages 25–35 were found in pools in a rocky stream.
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Hyloxalus craspedoceps ( Spanish; Castilian )

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Hyloxalus craspedoceps[1][2]​ es una especie de anfibio anuro de la familia Dendrobatidae.

Distribución geográfica

Esta especie es endémica de la provincia de Lamas en la región de San Martín en Perú. Habita a 500 m de altitud en la vertiente oriental de la Cordillera Central.[3]

Descripción

El holotipo femenino mide 20.5 mm y el paratipo masculino 19.1 mm.

Etimología

El nombre específico craspedoceps proviene del griego kraspedon, la esquina, el borde y kephale, la cabeza, con referencia a la línea pálida presente en la cabeza de esta especie.

Publicación original

  • Duellman, 2004 : Frogs of the genus Colostethus (Anura; Dendrobatidae) in the Andes of northern Peru. Scientific Papers Natural History Museum the University of Kansas, vol. 35, p. 1-49[4]

Referencias

  1. Lista Roja : Hyloxalus craspedoceps (Duellman, 2004) Consultado el 14 de noviembre de 2018
  2. NCBI : Hyloxalus craspedoceps especie de anfibio anuro Consultado el 14 de noviembre de 2018
  3. AmphibiaWeb : Hyloxalus craspedoceps (Duellman, 2004) Consultado el 14 de noviembre de 2018
  4. Amphibian Species of the World: Colostethus craspedoceps (Duellman, 2004) Consultado el 14 de noviembre de 2018

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Hyloxalus craspedoceps: Brief Summary ( Spanish; Castilian )

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Hyloxalus craspedoceps​​ es una especie de anfibio anuro de la familia Dendrobatidae.

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Hyloxalus craspedoceps ( Basque )

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Hyloxalus craspedoceps Hyloxalus generoko animalia da. Anfibioen barruko Dendrobatidae familian sailkatuta dago, Anura ordenan.

Erreferentziak

Ikus, gainera

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Hyloxalus craspedoceps: Brief Summary ( Basque )

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Hyloxalus craspedoceps Hyloxalus generoko animalia da. Anfibioen barruko Dendrobatidae familian sailkatuta dago, Anura ordenan.

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Hyloxalus craspedoceps ( French )

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Hyloxalus craspedoceps est une espèce d'amphibiens de la famille des Dendrobatidae[1].

Répartition

Cette espèce est endémique de la province de Lamas dans la région de San Martín au Pérou[1]. Elle se rencontre à 500 m d'altitude sur le versant Est de la cordillère Centrale.

Description

La femelle holotype mesure 20,5 mm et le mâle paratype 19,1 mm[2].

Étymologie

Le nom spécifique craspedoceps vient du grec kraspedon, le coin, la bordure, et de kephale, la tête, en référence à la ligne pâle présente sur la tête de cette espèce[2].

Publication originale

  • Duellman, 2004 : Frogs of the genus Colostethus (Anura; Dendrobatidae) in the Andes of northern Peru. Scientific Papers Natural History Museum the University of Kansas, vol. 35, p. 1-49 (texte intégral).

Notes et références

  1. a et b Amphibian Species of the World, consulté lors d'une mise à jour du lien externe
  2. a et b Duellman, 2004 : Frogs of the genus Colostethus (Anura; Dendrobatidae) in the Andes of northern Peru. Scientific Papers Natural History Museum the University of Kansas, vol. 35, p. 1-49 (texte intégral).
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Hyloxalus craspedoceps: Brief Summary ( French )

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Hyloxalus craspedoceps est une espèce d'amphibiens de la famille des Dendrobatidae.

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Hyloxalus craspedoceps ( Portuguese )

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Hyloxalus craspedoceps é uma espécie de anfíbio anuro da família Dendrobatidae.[3][4] Está presente no Peru.[4] A UICN classificou-a como deficiente de dados.[1]

Ver também

Referências

  1. a b (2018). Hyloxalus craspedoceps (em inglês). IUCN 2018. Lista Vermelha de Espécies Ameaçadas da IUCN de 2018 Versão 185802. Página visitada em 22 de outubro de 2019.
  2. Duellman, W.E. 2004. Frogs of the genusColostethus(Anura; Dendrobatidae) in the Andes of northern Peru.Scientific Papers of the Natural History Museum of the University of Kansas35: 1-49.
  3. Hyloxalus craspedoceps Amphibian Species of the World, versão 6.0. American Museum of Natural History. Página acedida em 13 de Fevereiro de 2018.
  4. a b Hyloxalus craspedoceps. AmphibiaWeb. Página acedida em 13 de Fevereiro de 2018.
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Hyloxalus craspedoceps: Brief Summary ( Portuguese )

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Hyloxalus craspedoceps é uma espécie de anfíbio anuro da família Dendrobatidae. Está presente no Peru. A UICN classificou-a como deficiente de dados.

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