Added August 28 2004. Last updated 19 March 2014: added link to Blythia.

The Colubridae: A Species Listing

Introduction

The following is an alphabetical listing of genera in the Colubridae family. This is mainly for the sake of completeness as it will take some time to cover even a quarter of these in any detail. We have however put links to some of the most popular groups (rat snakes, garter snakes and kingsnakes and milksnakes). Placement within the subfamilies is also difficult with some genera, but we have tentatively done so and noted any dispute. Please refer to the excellent Reptile Database site for clarification on some of these issues. Herpbreeder.dk also has a good listing.

Blank fields for the common name mean either that there is no common name for the species or else a multiplicity of names which bear no relation to one another. More accurate distribution details will be placed on the page dedicated to the particular genus. The Notes section is fairly sparse for the simple reason that even the subfamily placement or the validity of the genus is questioned for some genera.

Although few of the colubrids are dangerously venomous, not all are suitable as captives. In particular some have dietary needs that are hard to meet, such as lizards, frogs or toads, while others, such as those known commonly as racers of one sort or another, are fast and often highly-strung. Elaphe, Lampropeltis, Thamnophis and Pituophis remain the most popular, and (in the main) the easiest and sometimes most responsive captives. Lamprophis, at least in the species L. fuliginosus, are also fairly easy and straightforward. Heterodon are quite popular but mostly have a toad-based diet which may deter some. Many of the attractive green snakes (eg Philothamnus, Hapsidophrys) fall into the category of lizard- and frog-eaters and are thus beyond most people's means, although the slender Opheophrys of North America are insectivorous and can make good captives if treated properly (see deVosjoli's manual on the subject).

It should also be noted that colubrids from Brazil and Australia are not generally available to the private keeper due to the export restrictions from those countries.

Owing to the huge size of the family and the probability that there will be further rearrangements within it, we have simply used an alphabetical Quick Index on this page, rather than making a shortcut for each genus.

QUICK INDEX

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XYZ

 

Genus

Common Name

Distribution

Species

Notes

Achalinus

Odd-Scaled Snakes

Vietnam, Japan, China, Taiwan

9

 

Adelophis 

Mountain Meadow Snakes

Mexico 

2

 

Adelphicos

American Burrowing Snakes 

Mexico and Central America

6

 

Aeluroglena 

Somali Snake

Horn of Africa

 

Afronatrix

African Brown Water Snake

W Africa

1

 

Ahaetulla

 

India, SE Asia

8

 

Alluaudina

 

Madagascar

2

 

Alsophis

Racers

Caribbean, N South America and Galapagos Islands

13

 

Amastridium

Rustyhead Snake

Mexico and C America

1

 

Amphiesma

Keelbacks

Siberia, Korea, China, Indian subcontinent, Indochina, SE Asia, Japan, Indonesia

38

 

Amphiesmoides

Werner's Ornate Snake

China

1

 

Amplorhinus

Cape Reed Snake

RSA and Zimbabwe

1

 

Anoplohydrus

 

Indonesia

1

 

Antillophis

 

Cuba and Hispaniola

2

 

Apostolepis

Burrowing Snakes

South America (not Chile)

24

 

Aplopeltura

Blunthead Slug-Snake

SE Asia

1

 

Argyrogena

Banded Racer

India

1-2

 

Arizona

Glossy Snake

North America

1

 

Arrhyton

Island Racers 

Caribbean 

13

 

Aspidura

Rough-Sided Snakes

Sri Lanka

6

 

Asthenodipsas

 

 

 

No information available

Atractus

Ground Snakes

South America and Panama

96

 

Atretium

Olive Keelbacks

China and Indian subcontinent

2

 

Balanophis

Sri Lankan Keelback Blossom Krait

Sri Lanka 

 

Bitia

Keel-Bellied Water Snake

Burma, Thailand, Malaysia

 

Blythia

Blyth's Reticulate Snake 

India, China and Burma 

 

Bogertophis

Trans-Peco and Baja California Ratsnakes 

USA and Mexico 

 

Boiga

Cat Snakes, Tree Snakes and Mangrove Snakes 

W & E Africa, C Asia, Iran, Indian subcontinent, Sri Lanka, SE Asia, China, New Guinea, Australia, Oceania 

32 

 

Boiruna

 

Brazil 

 

Bothrolycus

Günther's Black Snake 

W Africa including Congo

1

 

Bothropthalmus

Red-Black Striped Snake

W Africa including Congo

 

Brachyorrhos

 

Indonesia 

1

 

Brygophis

 

Madagascar 

 

Buhoma

 

W & E Africa inc. Congo  

3

 

Calamaria

Dwarf and Reed Snakes 

India, SE Asia, China, Indian Ocean, Japan

51 

 

Calamodontophis

Tropical Forest Snake 

Brazil

 

Calamorhabdium

Iridescent Snakes 

Indonesia 

2

 

Cantoria

Banded and Cantor's Water Snakes

India, SE Asia, New Guinea 

2

 

Carphophis

Worm Snakes 

USA 

2

 

Cemophora

Scarlet Snake

USA 

 

Cerberus

Dog-Faced Water Snakes

Indian subcontinent, SE Asia inc. Philippines, New Guinea and Australia 

 

Cercaspis

Ceylon Wolf Snake

Sri Lanka 

 

Cercophis

Tropical Forest Snake 

Brazil 

 

Chamaelycus

Banded Snakes 

W Africa inc. Congo

 

Chersodromus

Earth Runners

Mexico and Guatemala 

 

Chilomeniscus

Sand Snakes

USA and Mexico 

 

Chionactis

Shovel-Nosed Snakes

USA and Mexico 

3

 

Chironius

Sipos

Central and South America, Lesser Antilles 

13

 

Chrysopelea

Flying Snakes 

India, SE Asia, China 

 

Clelia

Mussuranas

Central and South America and Antilles 

9

 

Clonophis

Road Guarders 

Mexico, Central America, poss. Colombia

 

Clonophis

Kirtland's Snake

USA 

 

Collorhabdium

Mountain Dwarf Snake 

W Malaysia 

1

 

Coluber

Whip Snakes, Racers

Europe, North America, North Africa, Middle East inc. Arabia and Gulf, Russia, C Asia, Indian subcontinent, Horn of Africa, E Africa, Mongolia, China, poss. Namibia 

36 

 

Compsophis

Malagasy Bighead Snake

Madagascar 

 

Coniophanes

Garden Snakes/Black-Striped Snakes 

USA, Mexico, Central and South America 

13 

 

Conopsis

Ground Snakes, Earth Snake

Mexico

6

 

Contia

Sharptail Snake 

USA 

 

Coronella

Smooth Snakes

Europe, Caucasus, Asia Minor and Iran, India 

3

 

Crisantophis

Dunn's Road Guarder

Central America 

 

Crotaphopeltis

Herald Snakes

Sub-Saharan Africa

 

Cryophis

Hallberg's Cloud Forest Snake

Mexico 

 

Cryptophidion

 

 

 

No information available

Cyclocorus

Triangle-Spotted Snakes

Philippines 

 

Cyclophiops

Green Snakes

China, India, SE Asia, Japan 

 

Darlingtonia

Haitian Ground Snake

Hispaniola 

1

 

Dasypeltis

African Egg-Eating Snakes

Africa (not Sahara) 

5

 

Dendrelaphis

Bronzebacks and Tree Snakes 

Indian subcontinent, China, SE Asia, New Guinea, Solomon Islands and Australia

20 

 

Dendrolycus

Cameroon Rainforest Snake

Congo basin and Cameroon 

 

Dendrophidion

Forest Racers 

Central and South America 

 

Diadophis

Ringneck Snakes 

North America

 

Diaphorolepis

Frog-Eating Snakes 

Colombia, Ecuador and Panama 

 

Dinodon

Big-Toothed Snakes 

India, SE Asia, China, Japan

 

Dipsadoboa

Tree Snakes 

Sub-Saharan Africa

11

 

Dipsas

Snail-Eaters

Mexico, Central and South America 

32

 

Dipsina

Dwarf/Western Beaked Snake

SW Africa 

 

Dispholidus

Boomslang

Sub-Saharan Africa 

Dangerously venomous 

Ditaxodon

Hensel's Snake

Brazil and Peru 

 

Ditypophis

Günther's Racer 

Socotra Island (Yemen) 

 

Drepanoides

Black-Collared Snake

South America

1

 

Dromicodryas

Striped Snakes

Madagascar 

 

Dromophis

Striped Swamp Snake

Sub-Saharan Africa

 

Dryadophis

Lizard Eaters 

Mexico and Central America, poss. Colombia 

 

Drymarchon

Cribos and Indigo Snakes 

USA, Mexico, Central and South America

4

 

Drymobius

Racers

USA, Mexico, Central America, South America

4

 

Drymoluber

Woodland Racers

South America 

2

 

Dryocalamus

Bridal Snakes 

India and SE Asia 

 

Dryophiops

Whipsnakes

SE Asia 

 

Duberria

Slug Eaters 

Congo basin, E and S Africa 

2

 

Echinanthera

 

South America 

12 

 

Eirenis

Dwarf Racers

Asia Minor, Caucasus, Middle East, E Africa, Pakistan 

17

 

Elachistodon

Indian Egg-Eating Snake 

India, Bangladesh, Nepal 

 

Elaphe

Rat Snakes 

Europe, N America, Asia 

38 

 

Elapoidis

 

Indonesia

1

 

Elapomorphus

Diadem/Lizard-Eating Snakes

South America 

5

Venomous 

Emmochliophis

Pinchinda Snakes

Ecuador 

 

Enhydris

Water Snakes

Indian subcontinent, China, SE Asia, Australia 

21

 

Enuliophis

Colombian Longtail Snake 

Central America 

 

Enulius

Longtail Snakes 

Mexico and Central America 

 

Eridiphas

Baja California Night Snake

Mexico 

 

Erpeton

Tentacle Snake

Thailand, Cambodia and Vietnam  

 

Erythrolamprus

False Coral Snakes 

Central and South America 

 

Etheridgeum

Sumatra Etheridge Snake

Indonesia 

 

Exallodontophis

 

Madagascar

 

Farancia

Mud and Rainbow Snakes 

USA 

 

Ficimia

Hooknose Snakes

USA, Mexico and Central America 

 

Fimbrios

Bearded Snake

Cambodia and Vietnam

1

 

Fordonia

Crab-Eating Water Snake 

Indian subcontinent, SE Asia, Papua New Guinea and Australia

 

Gastropyxis

Emerald Snake

W & E Africa 

May instead be considered a species of Hapsidophrys: see the latter page.

Geagras

Tehuantepec Striped Snake 

Mexico 

 

Geodipsas

Forest Snakes 

Madagascar 

5

 

Geophis

Earth Snakes 

Mexico, Central America and Colombia

43

 

Gerardia

Gerard's/Cat-Eyed Water Snake 

Indian subcontinent and SE Asia 

 

Gomesophis

Brazilian Burrowing Snake

Brazil 

 

Gongylosoma

Ringnecks 

SE Asia and Nicobar Islands 

5

 

Gonionotophis

African Ground Snakes

W Africa 

 

Gonyophis

Rainbow Tree Snake

SE Asia 

 

Gonyosoma

 

Indian subcontinent, China, SE Asia 

 

Grayia

African Water Snakes

W, C and E Africa 

 

Gyalopion

Hooknose Snake 

USA and Mexico 

 

Haplocercus

Ceylon Keelback

Sri Lanka 

 

Hapsidophrys

Black-Lined Green Snake 

W & E Africa

1-2

 

Helicops

Keelbacks

South America 

15 

 

Helophis

Schouteden's Sun Snake 

Congo 

 

Hemirhagerrhis

Bark/Mopane Snakes 

Sub-Saharan Africa 

 

Hemorrhois

 

Europe and N Africa

Former Coluber species

Heterodon

Hog-Nosed Snakes 

Canada, USA and Mexico 

 

Heteroliodon

 

Madagascar 

 

Heurnia

Mamberano River Water Snake 

Indonesia 

 

Hierophis

Racers

S Europe, Balkans, S Russia, Caucasus, Middle East, N China, Korea 

 

Hologerrhum

 

Philippines 

 

Homalopsis

Puff-Faced Water Snake

Indian subcontinent, SE Asia 

1

 

Hormonotus

Uganda House Snake 

W & E Africa 

 

Hydrablabes

Small-Eyed Snakes 

Malaysia, Indonesia and Brunei

 

Hydraethiops

Black-Belly Snake 

W Africa 

 

Hydrodynastes

False Water Cobras

South America 

 

Hydromorphus

Costa Rican and Dunn's Water Snake 

Central America 

 

Hydrops

Northern and Triangle Water Snakes 

South America 

 

Hypsiglena

Night Snakes 

W USA, Mexico and Central America 

 

Hypsirhynchus

Hispaniolan Cat-Eyed Snake 

Hispaniola 

 

Ialtris

Fanged Snakes 

Hispaniola 

 

Iguanognathus

Spatula-Tooth Snake 

Indonesia 

 

Imantodes

Tree Snakes 

Mexico, Central and South America 

 

Ithycyphus

Night Snakes 

Madagascar 

 

Lampropeltis

Kingsnakes and Milksnakes

North America

 

Lamprophis

House Snakes

Africa and Seychelles, poss. Arabia 

14 

 

Langaha

Leafnose Snakes 

Madagascar 

 

Leioheterodon

Malagasy Hognose Snakes

Madagascar 

 

Leptodeira

Cat-Eyed Snakes 

USA, Mexico, Central and South America

 

Leptodrymus

Striped Lowland Snake

Central America 

 

Leptophis

Parrot Snakes 

Mexico, Central and South America 

10 

 

Lepturophis

Wolf Snakes 

SE Asia 

 

Limnophis

Swamp Snake 

S & W Africa 

 

Lioheterophis

Ihering's Snake

Brazil 

 

Liopeltis

Reed Snakes 

Indian subcontinent, China, SE Asia, Japan

 

Liophidium

 

Madagascar, Mascarenes and Comores Islands 

 

Liophis

Ground Snakes 

Caribbean, Central and South America 

50

 

Liopholidophis

Water Snakes

Madagascar 

 

Lycodon

(Asian) Wolf Snakes 

Central Asia, Indian subcontinent, China, SE Asia, Indian Ocean, Japan 

29

 

Lycodonomorphus

Water Snakes

W, E and S Africa 

6

 

Lycodryas

Spotted and St John's Tree Snake 

Comoro Islands 

 

Lycognathophis

Seychelles Wolf Snake 

Seychelles 

 

Lycophidion

Wolf Snakes

Sub-Saharan Africa 

18

 

Lystrophis

South American Hognoses

South America 

 

Lytorhynchus

Longnose Sand and Leafnose Snakes

North Africa, Middle East, Arabia, Central Asia 

 

Macrocalamus

Mountain Reed Snakes 

Malaysia 

 

Macropisthodon

Keelbacks 

India, China, SE Asia 

 

Macroprotodon 

False Smooth Snake 

Iberia, Italy, N Africa and Israel 

 

Madagascarophis

 

Madagascar 

 

Malpolon

Moila and Montpellier Snakes 

S Europe, N, W & E Africa, Middle East and Arabia 

 

Manolepis

Ridgehead Snake 

Mexico 

 

Masticophis

Coachwhip, Whip Snakes and Racers

USA, Mexico and Central America 

 

Mastigodryas

Tropical Whipsnakes and -Racers  

Grenada, Central and South America 

 

Mehelya

File Snakes

Sub-Saharan Africa 

10 

 

Meizodon

 

Sub-Saharan Africa

 

Micropisthodon

 

Madagascar

1

 

Mimophis

 

Madagascar 

 

Montaspis

Cream-Spotted Mountain Snake 

Republic of South Africa 

 

Myersophis

 

Philippines 

 

Myron

Richardson's Grey Mangrove Snake 

Indonesia and Australia 

 

Natriciteres

Marsh Snakes 

Sub-Saharan Africa 

 

Natrix

European Grass, Water and Dice Snakes 

Europe, Mediterranean, North Africa, Middle East, S Russia, Central Asia, Pakistan, Malaysia 

 

Nerodia

Marsh and Water Snakes 

Canada, USA, Mexico, Cuba 

10 

 

Ninia

Coffee Snakes 

Mexico, Central and South America 

 

Nothophis

Rough Coffee Snake 

Central and South America 

 

Oligodon

Kukri Snakes 

C Asia, Indian subcontinent, China, SE Asia

67 

 

Opheophrys

Rough and Smooth Green Snakes

Canada, USA, Mexico 

 

Opisthotropis

Mountain Keelbacks  and Stream Snakes

China, SE Asia, Japan 

16 

 

Oreocalamus

Kalimantan Burrowing Snake 

Malaysia 

 

Oxybelis

Vine Snakes 

USA, Mexico, Central and N South America 

4

 

Oxyrhabdium

Philippine Shrub Snakes 

Philippines, Indonesia 

 

Oxyrhopus

False Coral Snakes 

South America 

13

 

Parahelicops

 

Vietnam 

 

Pararhabdinia

Madagascar Burrowing Snake

Madagascar

1

 

Pararhabdophis

Vietnam Water Snake 

Vietnam 

 

Pareas

Slug Snakes 

Indian subcontinent, China, SE Asia, Japan

12 

 

Phalotris

 

South America 

10

 

Philodryas

Green Racers 

South America (inc. Chile and Galapagos)

21 

Some venomous species

Philothamnus

Green Snakes 

Sub-Saharan Africa 

18 

 

Phimophis

Pampas Snakes 

Panama and South America 

6

 

Phyllorhynchus

Leafnose Snakes 

USA and Mexico 

 

Pituophis

Pine, Gopher and Bullsnakes

North America and Guatemala 

 

Plagiopholis

Mountain Snakes 

China, SE Asia, India 

5

 

Pliocercus

False Coral Snakes 

Mexico, Central and South America 

 

Poecilopholis

Cameroon Racer

Cameroon 

 

Prosymna

Shovel-Snouts 

Sub-Saharan Africa 

13 

 

Psammodynastes

Mock Vipers 

Indian subcontinent, China and SE Asia 

 

Psammophis

Sand Snakes, Sand Racers 

Africa, Middle East, Arabia, Central Asia and Indian subcontinent, Mongolia

22 

 

Psammophylax

Skaapstekers

S & E Africa 

 

Pseudaspis

Mole Snake

S and E Africa and Congo 

 

Pseudoblabes

Burrowing Night Snake 

South America 

 

Pseudoboa

False Boas 

Caribbean, Panama and South America 

 

Pseudoboodon

Banded Snakes 

Ethiopia and Eritrea 

 

Pseudocyclophis

Dark-Headed Dwarf Racer 

Turkey, Middle East and C Asia 

 

Pseudoeryx

South American Pond Snake 

South America 

 

Pseudoficimia

False Ficimia 

Mexico 

 

Pseudoleptodeira

False Cat-Eyed Snakes 

Mexico 

 

Pseudorabdion

Dwarf Reed Snakes and Common Collared Snake 

SE Asia 

12 

 

Pseudotomodon

False Tomodon Snake 

W Argentina 

 

Pseudoxenodon

Bamboo Snakes 

Indian subcontinent, China, SE Asia 

 

Pseudoxyrhopus

Brook Snakes 

Madagascar 

11 

 

Pseustes

Puffing Snakes 

Mexico, Central and South America 

5

 

Psomophis

Spirit- and Wide Ground Snakes 

South America 

 

Ptyas

Rat Snakes/Racers 

Iran, C Asia, Indian subcontinent, China and SE Asia 

 

Ptychophis

Fanged Water Snake 

Brazil 

 

Pythonodipsas

Western Keeled Snake 

SW Africa 

 

Rabdion

 

Indonesia 

 

Regina

Crayfish and Queen Snakes 

Canada and USA 

 

Rhabdops

Trapezoid Snakes 

India, Myanmar, China 

 

Rhabdophis

Keelbacks

Indian subcontinent, China, E Russia, Korea, SE Asia

18

Number of venomous species

Rhachidelus

 

 

 

No information available

Rhadinaea

Graceful Brown Snakes, Pine Forest Snakes 

USA, Mexico, Central America, Colombia 

35 

 

Rhadinophanes

Graceful Mountain Snake 

Mexico 

 

Rhamnophis

 

W & E Africa 

2

 

Rhamphiophis

Beaked Snakes 

Sub-Saharan Africa 

 

Rhinobothryum

Amazon Banded Snakes 

Central and South America 

 

Rhinocheilus

Longnose Snakes

USA and Mexico 

 

Rhynchocalamus

Kukri Snakes 

Balkans, Asia Minor, Middle East and Arabia 

 

Rhynchophis

Rhinoceros/Rhino Rat Snake 

N Vietnam and China 

1

 

Salvadora

Patchnose Snakes 

USA and Mexico 

7

 

Saphenophis

Saphenophis Snakes 

Colombia and Ecuador 

 

Scaphiodontophis

Neckband Snakes 

Mexico, Central America and Colombia 

 

Scaphiophis

African Shovel-Nosed Snakes 

W & E Africa 

 

Scolecophis

Black-Banded Snake 

Central America 

 

Seminatrix

Black Swamp Snake 

USA 

 

Senticolis

Green Rat Snake 

USA, Mexico, Central America 

 

Sibon

Snail Suckers and Snail Eaters

Mexico and Central and South America 

13 

 

Sibynomorphus

Tree Snakes 

South America 

12

 

Sibynophis

Many-Toothed Snakes 

Indian subcontinent, China and SE Asia 

 

Simophis

False Coral Snakes 

Brazil and Paraguay 

 

Sinonatrix

(Chinese) Water Snakes 

China, SE Asia 

 

Siphlophis

Spotted Night Snakes 

Panama and South America 

 

Sonora

Ground Snakes 

USA and Mexico 

 

Sordellina

Dotted Ground Snake 

Brazil 

 

Spalerosophis

Diadem Snakes 

N & W Africa, Somalia, Middle East, Arabia, C Asia, Indian subcontinent 

 

Spilotes

Chicken Snake 

S Mexico, Central and South America 

 

Stegonotus

Frog-Eating Snakes and Ground Snakes

Indonesia, Philippines, New Guinea and Australia 

10 

 

Stenophis

 

Madagascar and Comoro Islands 

15

 

Stenorrhina

Blood Snake and Scorpion-Eating Snake 

Mexico, Central and South America 

 

Stilosoma

Short-Tailed Snake 

USA 

 

Stoliczkaia

Red Snakes 

India, Malaysia, Indonesia 

 

Storeria

Brown and Redbelly Snakes

USA and Mexico 

 

Symphimus

White-Lipped Snakes 

Mexico and Belize 

 

Sympholis

Mexican Short-Tail Snake 

Mexico 

 

Synophis

Fishing Snakes 

Colombia and Ecuador 

 

Tachymenis

Slender Snakes 

South America 

7

Venomous 

Taeniophallus

 

Surinam, Brazil, French Guiana 

 

Tantalophis

Oaxacan Cat-Eyed Snake 

Mexico 

 

Tantilla

Black-Headed, Flathead, Crowned and Centipede Snakes 

USA, Mexico, Central and South America 

62 

 

Tantillita

Dwarf Short-Tail Snakes 

Mexico and Central America 

 

Telescopus

Tiger and Cat Snakes 

Africa, Arabia, Middle East, Mediterranean, Caucasus, C Asia, Pakistan 

12 

 

Tetralepis

Bluebelly Java Snake 

Indonesia 

 

Thamnodynastes

Coastal House Snakes 

South America 

13 

 

Thamnophis

Ribbon and Garter Snakes 

North and Central America, Venezuela 

28

 

Thelotornis

Twig and Vine Snakes

Sub-Saharan Africa 

Dangerously venomous 

Thermophis

Bailey's Snake 

China (Tibet) 

 

Thrasops

Black Tree Snakes 

W & E Africa 

 

Tomodon

Pampas Snakes 

South America 

 

Trachischium

Worm-Eating Snakes 

Indian subcontinent, China (Tibet) 

 

Tretanorhinus

Swamp and Water Snakes 

Mexico, Central America, Caribbean, N South America 

 

Trimetopon

Tropical Ground Snakes 

Panama and Costa Rica 

 

Trimorphodon

Lyre Snakes

USA, Mexico and Central America 

 

Tropidoclonion

Lined Snake 

USA 

 

Tropidodipsas

Snail-Eating Snakes and Snail Suckers 

Mexico and Guatemala 

 

Tropidodryas

Serra Snakes 

Brazil 

 

Tropidonophis

Keelbacks 

Philippines, Indonesia, New Guinea, Papua New Guinea, Australia

18 

 

Umbrivaga

Tropical Forest Snakes 

N South America 

 

Uromacer

Pointed Snakes 

Hispaniola 

 

Uromacerina

Sao Paolo Sharp Snake

Brazil

 

Urotheca

False Coral Snakes 

Mexico, Central America and N South America 

 

Virginia

Earth Snakes 

USA 

 

Waglerophis

Wagler's Snake 

South America 

 

Xenelaphis

Brown Snakes 

SE Asia 

 

Xenochrophis

Keelbacks and Asiatic Water Snakes

Afghanistan, Indian subcontinent, China and SE Asia 

10 

 

Xenodermus

Java Tubercle Snake 

SE Asia 

 

Xenodon

False Fer-de-Lances 

Mexico, Central and South America 

 

Xenopholis

Ground Snakes 

South America 

 

Xenoxybelis

 

South America 

 

Xylophis

Mountain Snakes 

India 

 

Zaocys

 

 

 

Now viewed by some authorities as a synonym of Ptyas

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