Bolitoglossa schizodactyla — Overview

Cocle Mushroomtongue Salamander learn more about names for this taxon

IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Diagnosis: Bolitoglossa schizodactyla can be distinguished from other members of the genus by the following combination of characters: having bifurcated terminal phalanges on some to most digits; complete digital webbing; relatively high numbers of vomerine teeth (mean 39.8, range 27-61); and color pattern of either a yellow ventral band interrupted by an irregular black stripe on the belly, or a whitish venter without markings (northern and western parts of the range) (Wake and Brame 1966; Savage 2002).

Description: Bolitoglossa schizodactyla is a medium-sized Bolitoglossa, with adults measuring 96 to 147 mm in total length. Adult males are 38 to 61 mm in standard length, while adult females are 46 to 62 mm in standard length. Tails are long and measure 50 to 58% of total length. Eye size is moderate and eyes are slightly protuberant. Adults have 43 to 104 maxillary teeth and 27 to 61 vomerine teeth. Adpressed limb interval is 1 1/2 to 3 costal folds. Hands and feet are completely webbed with no subterminal pads. Head width measures 15 to 18% of standard length. Leg length measures 20 to 28% of standard length. Dorsal surfaces range from dark brown to black. In specimens from the southern and eastern parts of the range, the venter and subcaudal areas are yellow, and the venter is often marked by an irregular dark brown to black central stripe. In specimens from the northern and western parts of the range, the venters are immaculate whitish (Wake and Brame 1966; Savage 2002).

Similar species: B. schizodactyla can be distinguished from B. striatula by its color pattern; B. schizodactyla has a dark brown to black ground color with a yellow venter often interrupted by a median dark stripe, or a whitish venter, while B. striatula is cream to light yellow with dark brown stripes both dorsally and ventrally (Savage 2002).

First described by Wake and Brame (1966). The species name schizodactyla refers to the bifurcated terminal phalanges present on some or all digits.

A Spanish-language species account can be found at the website of Instituto Nacional de Biodiversidad (INBio).


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