Hump-Nosed Pit Viper ( Hypnale hypnale Merrem, 1820 )

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Name
Scientific Name: 
Hypnale hypnale (Merrem, 1820)
Regional Names: 
English: 
Merrem's Hump-nosed Pit Viper
Kannada: 
ತಗಡು ಹಪ್ಪಾಟೆ ಹಾವು (tagaDu happATe hAvu)
Photographs: 
hump nosed pit viper in its natural habitat
Distribution: 
Venom Type: 
Haemotoxic
Family: 
Characteristics for identification: 

Scales smooth or weakly keeled, Triangular head dinstinctly broader than neck. Small tail, Body Light brown to Chocolate brown. Top head brown separated from black side of head by a distinct pale yellow or white line. Tail tip yellowish/reddish brown. Common name is misleading as the snout is turned up very slightly.

Description: 

Nocturnal and terrestrial, found in Evergreen to dry deciduous forest. mostly spotted under rocks,dry leaves and under logs with its head angled upwards. Excellently camouflaged. Juvenile wriggles tail to lure prey.

Scalation
Head: 
Canthus rostralis distinct. Supralabial 7 or 8.
Dorsal: 
Upper rows feebly keeled, scale rows in 17/19:17:15/17 rows.
Ventral: 
134-149 (India), 142-158 (Sri Lanka)
Sub Caudal: 
33-46 (India), 32-48 (Sri Lanka); paired, sometimes few of them entire.
Habitat: 
Found under rocks, inside logs, under leaves and in low bushes
Diet: 
Feeds on Geckos, small rodents, Reptile eggs and frogs
Bite symptoms: 

Venom seems to be quite toxic and bites may cause considerable swelling and pain. No fatalities recorded

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