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Taxonomy of the family Viperidae
Bibliography of the genus Hypnale
Biodiversity of the family Viperidae








Genus
Hypnale

Hump-nosed Pitvipers

Ceylon-Nasenottern

Asiatiske Snudehugorme*

1843 Hypnale Fitzinger (type species: Cophias hypnale Merrem 1820)
Contents: 3 species, of which 2 (66.7%) are endemic.
Remarks: Previously included in Agkistrodon.
Distribution: India (Goa, Karnataka, Kerala, Maharashtra, Tamil Nadu), Sri Lanka.

Hypnale hypnale

Indian Hump-nosed Pitviper, (Merrem's Hump-nosed Viper)

Indische Nasenotter

Indisk Snudehugorm*

1820 Cophias hypnale Merrem
Trigonocephalus hypnale Schlegel 1837
Ancistrodon hypnale Boulenger 1890
Agkistrodon hypnale Pope 1935
Hypnale hypnale Gloyd 1977
1842 Trimeresurus ceylonensis Gray (Maduwage, Silva, Manamendra-Arachchi & Pethiyagoda 2009)
1871 Hypnale affinis Anderson [not Trigonocephalus affinis Gray 1849] (Maduwage, Silva, Manamendra-Arachchi & Pethiyagoda 2009)
1908 Ancistrodon millardi Wall (Maduwage, Silva, Manamendra-Arachchi & Pethiyagoda 2009)

Distribution: India (Goa, Karnataka, Kerala, Maharashtra, Tamil Nadu), Sri Lanka.


Hypnale nepa

Sri Lankan Highland Hump-nosed Pitviper*, (Sri Lankan Hump-nosed Pitviper, Lorenz' Hump-nosed Pitviper, Millard's Hump-nosed Pitviper)

Srilankanische Bergnasenotter

Bjerg-snudehugorm*

1768 Coluber nepa Laurenti
Hypnale nepa Günther 1864
Crotalus hypnale nepa Higgins 1873
Ancistrodon nepa Smith 1937
Agkistrodon nepa Taylor 1950
1977 Hypnale walli Gloyd (Maduwage, Silva, Manamendra-Arachchi & Pethiyagoda 2009)

Other common names:
walli: Wall's Hump-nosed Pitviper, Gloyd's Hump-nosed Pitviper
Distribution: Sri Lanka.


Hypnale zara

Southwestern Sri Lankan Hump-nosed Pitviper*

Südwest-Srilankanische Nasenotter

Sydvestlig Snudehugorm*

1849 Trigonocephalus zara Gray
Hypnale zara Maduwage, Silva, Manamendra-Arachchi & Pethiyagoda 2009

Remarks: Previously regarded as a synonym of hypnale (e.g., McDiarmid, Campbell & Touré 1999) or of nepa (e.g., Golay & al. 1993). Revalidated by Maduwage, Silva, Manamendra-Arachchi & Pethiyagoda (2009).
Distribution: Sri Lanka.