Smooth Slug Snake

Asthenodipsas laevis

Asthenodipsas laevis is a snake in the family Pareidae.
SMOOTH SLUG SNAKE (Asthenodipsas laevis |Boie, 1827) A taxonomic reappraisal of the Smooth Slug Snake Asthenodipsas laevis (Boie, 1827) (Squamata: Pareidae) in Borneo with the description of two new species

EVAN S.H. QUAH, L. LEE GRISMER, KELVIN K.P. LIM, M.S. SHAHRUL ANUAR, AUL Y. IMBUN

Abstract

A review of the taxonomic status of the Smooth Slug Snake (Asthenodipsas laevis) in Borneo resulted in the discovery of two previously unrecognised species from the highlands of Sabah, East Malaysia. Asthenodipsas jamilinaisi sp. nov. and A. stuebingi sp. nov. are presumed to be closely related to A. laevis based on similarities in pholidosis and patterning but can be separated from A. laevis by their dorsal scale rows of 15/15/15 vs 15/15/13 and the presence of a sharp vertebral keel. Asthenodipsas jamilinaisi sp. nov. can be further differentiated from A. stuebingi sp. nov. by the greatly enlarged size of the vertebral scales, higher number of ventrals in males (173–175 vs 165), higher number of subcaudals (53 vs 35–47) and colour pattern (dark overall with indistinct bands vs lighter head and body with clear, distinct bands and a dark neck patch). The discovery highlights the need for more careful examination of much of the herpetofauna of Borneo that still remains underestimated and understudied. There is an urgent need for continued surveys into its diversity and the collection of genetic material for integrated taxonomic revisions. Asthenodipsas laevis,Smooth Slug Snake,Snakes of Borneo

Appearance

Its body is moderately slender, and somewhat laterally compressed. Its short head is distinct from the neck, and the snout is blunt, short and rounded. The dorsum is medium brown, with irregular, dark brown bands that may extend to the venter. The bars are separated by 3 to 5 plain scales.

The venter is pale, sometimes light brown or yellowish, and sometimes blotched with brown markings. Its dorsal scales are smooth. The eyes are moderate in size, with a red or brown iris. The vertebral scale row is enlarged, and these scales may be pale orange-brown or yellowish.

Distribution

Indonesia (Borneo, Bangka, Kalimantan, Java, Mentawai Archipelago, Natuna Archipelago, Sumatra);Laos; Malaysia (Malaya and East Malaysia);Thailand, Pulau Bangka

Habitat

The Smooth Slug Snake occurs in lowland and montane primary and secondary forest, often near stream courses. It is partly arboreal.

Reproduction

Oviparous

References:

Some text fragments are auto parsed from Wikipedia.

https://reptile-database.reptarium.cz/species?genus=Asthenodipsas&species=laevis
https://www.ecologyasia.com/verts/snakes/smooth-slug-snake.htm
Taxonomy
KingdomAnimalia
DivisionChordata
ClassReptilia
OrderSquamata
FamilyPareidae
GenusAsthenodipsas
SpeciesAsthenodipsas laevis
Photographed in
Malaysia