Scinax nasicus

Nose bend toes tree frog ( Scinax nasicus )

The neotropical nose kink toes tree frog ( Scinax nasicus ) belongs to the subfamily Hylinae within the family of tree frogs. After Faivovich et al. (2005 ) the species is counted within the genus Scinax to Scinax ruber clade. Edward Drinker Cope described the type based on a collected copy from the Paraná Basin of the " Thomas J. Page Expedition".

System

Scinax nasicus probably represents a complex of several species represents and requires a taxonomic revision.

Synonyms

  • Hyla Nasica Cope, 1862
  • Hyla nigra Cope, 1887
  • Hylella anisitsi Méhely, 1904
  • Hyla x - signata Nasica Lutz, 1973
  • Hyla anisitzi Duellman, 1977
  • Ololygon Nasica Fouquette & Delahoussaye, 1977
  • Ololygon nasicum Laurent & Teran, 1981
  • Scinax Nasica Duellman & Wiens, 1992

Köhler & Böhme (1996 ) corrected the ending of the epithet.

Dissemination

The species occurs up to 1000 m above sea level in altitude. NN in Paraguay, northern Argentina, Uruguay, eastern Bolivia and in Brazil from the southwest to the State of Rio Grande do Sul.

Description

The males reach a snout-vent length ( SVL ) of 27-32 mm, females up to 35 mm. However, De la Riva (1993 ) indicates an average SVL of 35.3 mm for six adult males from Bolivia. The back is brown, yellowish or grayish with one or two Interokularflecken and variable, often indistinct X -like marking on the back. The belly is white. The inner sides of the thighs and the groin region are yellow and brown. Unlike other members of the genus the hind legs are shorter and more pointed snout. Bolivian individuals usually have pale dark spots on the back. The larvae are hochflossig and have a translucent white body with a fine Netzaderung.

Habitat and Ecology

The nasal crease toes tree frog inhabits forests, bush and grassland and makes use of temporary waters in open areas for reproduction. After rain increases the activity of the males which usually call from vegetation near the spawning grounds. From the upper side dark spawn, which is attached to water plants, slip the free-swimming tadpoles, which are Supsensions and nursery eaters. Outside the spawning season finds the nose kink toes tree frog mostly on trees.

Endangering

The IUCN lists the nasal crease toes tree frog as " not at risk " ( "Least Concern" ). Widespread diffusion and the facts that the nature can be relatively well adapted to anthropogenic changes, accepts a wide range of habitats, the total population of a stable trend shows and is sufficiently large estimated reasons for them. the editors see it as unlikely that the populations of the species may decrease fast enough to justify a higher level of danger. as already mentioned, however, requires a taxonomic revision of this species complex, which situation the could change. Moreover, the nose bend toes tree frog comes in his area in several protected areas before.

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