Genus

Hump-nosed Vipers

Hypnale

2 species in our catalog · found in 2 parks

KingdomAnimalia (Animals)
PhylumChordata (Chordates)
ClassSquamata
FamilyViperidae (Vipers)
GenusHypnale (Hump-nosed Vipers)

Species in this group

NT Endemic

Hypnale zara

Daily sighting probability ~50% · Likely

Hypnale hypnale

Daily sighting probability ~20% · Possible

Daily sighting probability by month

Probability-weighted average across the group's species

~30%

Jan

~30%

Feb

~20%

Mar

~40%

Apr

~40%

May

~30%

Jun

~40%

Jul

~50%

Aug

~40%

Sep

~40%

Oct

~70%

Nov

~30%

Dec

When they're spotted

When the group's species are recorded (aggregated)

Where to see Hump-nosed Vipers

Warmer areas are where this group is recorded most often. Shaded: the known ranges of its 3 species, darker where more of them overlap (GARD, Roll et al. 2017 & Caetano et al. 2022). Our parks Our cities

Parks Ranked

#	Park	Country	Species	Daily sighting probability
1	Sinharaja Forest Reserve	🇱🇰 Sri Lanka	1 of 2	~50%
	Lowland Hump-nosed Viper			~50%
2	Minneriya National Park	🇱🇰 Sri Lanka	1 of 2	~20%
	Hump-nosed Viper			~20%

Cities Ranked

#	City	Country	Species	Daily sighting probability
1	Colombo [Sri Jayawardenepura Kotte]	🇱🇰 Sri Lanka	1 of 2	~10%
	Hump-nosed Viper			~10%

Hump-nosed Vipers

Species in this group

Lowland Hump-nosed Viper

Hump-nosed Viper

Daily sighting probability by month

When they're spotted

Where to see Hump-nosed Vipers

Parks Ranked

Cities Ranked