Squamata

Corrientes Broad-headed Gecko

Homonota taragui

Underwood's Marked Gecko

Homonota underwoodi

Uruguay Marked Gecko

Homonota uruguayensis

Argentine Marked Gecko

Homonota whitii

Ventania Mountains Broad-headed Gecko

Homonota williamsii

Broad-headed Geckos

Homonota xiru

Arnold's Velvet Gecko

Homopholis arnoldi

Striped Velvet Gecko

Homopholis fasciata

Muller's Velvet Gecko

Homopholis mulleri

Homopholis walbergii

Homopholis walbergii

Striped Harlequin Snake

Homoroselaps dorsalis

Spotted Harlequin Snake

Homoroselaps lacteus

Pale-headed Snake

Hoplocephalus bitorquatus

Broad-headed Snake

Hoplocephalus bungaroides

Stephen's Banded Snake

Hoplocephalus stephensii

Spiny Weapontail

Hoplocercus spinosus

Hoplocercidae

Hoplodactylus delcourti

Hoplodactylus delcourti

Diplodactylidae

Duvaucel's Gecko

Hoplodactylus duvaucelii

Diplodactylidae

Uganda House Snake

Hormonotus modestus

Koelliker's Glass Lizard

Hyalosaurus koellikeri

Anguidae

Yellow-spotted Water Snake

Hydrablabes periops

Kinabalu Water Snake

Hydrablabes praefrontalis

Ocellate Water Snake

Hydraethiops laevis

Blackbelly Snake

Hydraethiops melanogaster

Herrmann's Water Snake

Hydrodynastes bicinctus

False Water Cobra

Hydrodynastes gigas

False Water Cobra

Hydrodynastes melanogigas

Costa Rica Water Snake

Hydromorphus concolor

Dunn's Water Snake

Hydromorphus dunni

Yellow-bellied Sea Snake

Hydrophis platurus

Beaked Sea Snake

Hydrophis schistosus

Mud Snake

Hydrops caesurus

Amazon Water Snake

Hydrops martii

Triangle Water Snake

Hydrops triangularis

Sailfin Lizard

Hydrosaurus amboinensis

Sailfin Water Lizard

Hydrosaurus pustulatus

Weber's Sailfin Lizard

Hydrosaurus weberi

Hump-nosed Moccasin

Hypnale hypnale

Viperidae

Sri Lanka Humpnose Viper

Hypnale nepa

Viperidae

Lowland Hump-nosed Viper

Hypnale zara

Viperidae

Wedge-Snouted Burrowing Snake

Hypoptophis wilsonii

Kinabalu Crested Agama

Hypsicalotes kinabaluensis

Rio Grande de Santiago Nightsnake

Hypsiglena affinis

Isla Santa Catalina Nightsnake

Hypsiglena catalinae

Desert Nightsnake

Hypsiglena chlorophaea

Sonoran Nightsnake

Hypsiglena chlorophaea chlorophaea

Great Basin Nightsnake

Hypsiglena chlorophaea deserticola

Mesa Verde Night Snake

Hypsiglena chlorophaea loreala

Chihuahuan Nightsnake

Hypsiglena jani

Tamaulipas Nightsnake

Hypsiglena jani dunklei

San Luis Potosi Nightsnake

Hypsiglena jani jani

Texas Night Snake

Hypsiglena jani texana

Coast Nightsnake

Hypsiglena ochrorhynchus

Isla Cedros Nightsnake

Hypsiglena ochrorhynchus baueri

San Diego Nightsnake

Hypsiglena ochrorhynchus klauberi

California Night Snake

Hypsiglena ochrorhynchus nuchalata

Cape Nightsnake

Hypsiglena ochrorhynchus ochrorhynchus

Baja California Night Snake

Hypsiglena slevini

Rio Verde Nightsnake

Hypsiglena tanzeri