English: Young Malayan Pit Viper (Calloselasma rhodostoma); from Karawang, West Java. Ready-to-strike posture.
Bahasa Indonesia: Ular tanah (Calloselasma rhodostoma) yang masih remaja; dari Pangkalan, Karawang. Postur siap menyerang.
Date 10 June 2012
Author Wibowo Djatmiko (https://commons.wikimedia.org/wiki/User:Wie146)
Source: https://commons.wikimedia.org/wiki/File:Callos_rhodos_120610-0648_krw.jpg

Malayan ground pit viper (Calloselasma rhodostoma), also known as Malayan pit viper, Malayan ground snake, or Malayan moccasin, is a venomous pit viper species endemic to Southeast Asia from Thailand to northern Malaysia and on the island of Java.
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Calloselasma
Species: Calloselasma rhodostoma (Kuhl, 1824)
Synonyms:
Agkistrodon Palisot de Beauvois, 1799
Trigonocephalus Kuhl, 1822
Tisiphone Fitzinger, 1843
Leiolepis A.M.C. Duméril, 1853
Ancistrodon Baird, 1854
Calloselasma Cope, 1860
[Trigonocephalus] rhodostoma Kuhl, 1824
[Trigonocephalus] rhodostoma– F. Boie, 1827
[Trigonocephalus] praetextatus Gravenhorst, 1832
Tisiphone rhodostoma – Fitzinger, 1843
Leiolepis rhodostoma – A.M.C. Duméril, 1853
[Calloselasma] rhodostomus – Cope, 1860
Tisiphone rhodostoma – W. Peters, 1862
Trigonocephalus (Tisiphone) rhodostoma – Jan, 1863
Calloselasma rhodostoma – Günther, 1864
Calloselma rhodostoma – Morice, 1875
Ancistrodon rhodostoma – Boettger, 1892
Ancistrodon rhodostoma – Boulenger, 1896
Agkistrodon rhodostoma – Barbour, 1912
Ancistrodon (Calloselasma) rhodostoma – Bourret, 1927
Ancistrodon annamensis Angel, 1933
[Agkistrodon] annamensis – Pope, 1935
Calloselasma rhodostoma – Campden-Main, 1970