The single prefrontal configuration has historically been used as an important diagnostic
character for many natricine taxa. For example, the genus Trimerodytes Cope, 1895 was …

The previous descriptions of Opisthotropis maxwelli Boulenger, 1914 and O. andersonii
(Boulenger, 1888) were considered imperfect due to the limited number of specimens. This …

Abstract The Asian monotypic genus Pararhabdophis Bourret, 1934 has long been known
from a single holotype of the type species Pararhabdophis chapaensis Bourret, 1934 only …

Opisthotropis maculosa was described based on a single specimen collected from
northeastern Thailand in 2007. We collected three specimens from Guangxi and …

Abstract The Yellow-spotted Mountain Stream Keelback Opisthotropis maculosa was
originally described based on a single male specimen from northeastern Thailand. Recently …

A new species of the aquatic natricine colubrid snake genus Opisthotropis is described
based on a single specimen from Nong Khai Province, northeastern Thailand. The new …

New morphological data including hemipenis morphology is provided for Opisthotropis
jacobi, a poorly known Mountain Stream Keelback from Vietnam and China, based on three …

Two specimens, a male and a female, of the genus Opisthotropis Günther, 1872 were
collected in a karst formation of northern Louangphabang (or Luang Prabang) Province …

The description of Opisthotropis tamdaoensis, which was based on the male holotype only,
is expanded herein on the basis of four newly collected specimens from the type locality of …

A new species of the natricine snake genus Amphiesma is described from Central Vietnam
and possibly Thailand. Amphiesma leucomystax spec. nov. is distinguished from other …