Dipsadidae
—
Rear-fanged Snakes
Species I've seen:

Atractus major
Big Ground Snake

Carphophis amoenus
Common Wormsnake

Carphophis vermis
Western Wormsnake

Contia longicaudae
Forest Sharp-tailed Snake

Contia tenuis
Common Sharp-tailed Snake

Diadophis punctatus
Ring-necked Snake

Dipsas catesbyi
Ornate Snail-eating Snake

Dipsas indica
Big-headed Snail-eating Snake

Drepanoides anomalus
Amazon Egg-eating Snake

Farancia abacura
Red-bellied Mudsnake

Helicops angulatus
Banded South American Water Snake

Heterodon kennerlyi
Mexican Hog-nosed Snake

Hypsiglena chlorophaea
Desert Nightsnake

Hypsiglena cf. chlorophaea "Alamos"
undescribed species

Hypsiglena cf. chlorophaea "Cochise"
undescribed species

Hypsiglena jani
Chihuahuan Nightsnake

Hypsiglena ochrorhyncha
Coast Nightsnake

Imantodes cenchoa
Common Blunt-headed Tree Snake

Imantodes gemmistratus
Central American Tree Snake

Imantodes lentiferus
Amazon Blunt-headed Tree Snake

Leptodeira septentrionalis
Cat-eyed Snake

Oxyrhopus formosus
Yellow-headed Calico Snake

Oxyrhopus petolarius
Banded Calico Snake

Oxyrhopus vanidicus
Mimic False Coral Snake

Philodryas argentea
Green-striped Vine Snake

Pseudoboa coronata
Crowned False Boa

Sibon nebulatus
Cloudy Snail-eating Snake

Siphlophis compressus
Red Vine Snake

Taeniophallus brevirostris
Short-nosed Leaf-litter Snake

Xenopholis scalaris
Wucherer’s Ground Snake