Family Viperidae (Vipers):
countries and regions with most species

© Rune Midtgaard
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*Countries/regions with same number of species are ranked alphabetically
Rank* Country / region Species
No. 1
Mexico
 72
No. 2
China
 42
No. 3
Brazil
 31
No. 4
USA
 28
No. 5
India
 27
No. 6
Vietnam
 24
No. 7
Thailand
 21
No. 8
Colombia
 20
No. 9
Peru
 20
No. 10
Indonesia
 19
No. 11
Oaxaca [Mexico]
 18
No. 12
Veracruz [Mexico]
 18
No. 13
Costa Rica
 17
No. 14
Ecuador
 17
No. 15
Ecuadorian mainland [Ecuador]
 17
No. 16
Minas Gerais [Brazil]
 16
No. 17
Arizona [USA]
 15
No. 18
Chiapas [Mexico]
 15
No. 19
Guatemala
 15
No. 20
Myanmar
 15
No. 21
Panama
 15
No. 22
Russia
 15
No. 23
Sao Paulo [Brazil]
 15
No. 24
Sichuan [China]
 15
No. 25
Turkey
 15
No. 26
Yunnan [China]
 15
No. 27
Bolivia
 14
No. 28
Iran
 14
No. 29
Laos
 14
No. 30
Malaysia
 14
No. 31
Tanzania
 14
No. 32
Baja California Norte [Mexico]
 13
No. 33
Hidalgo [Mexico]
 13
No. 34
Honduras
 13
No. 35
Kenya
 13
No. 36
Mato Grosso [Brazil]
 13
No. 37
Puebla [Mexico]
 13
No. 38
Sonora [Mexico]
 13
No. 39
South Africa
 13
No. 40
Angola
 12
No. 41
Congo-Kinshasa
 12
No. 42
Guangxi [China]
 12
No. 43
Jalisco [Mexico]
 12
No. 44
Michoacan [Mexico]
 12
No. 45
Nigeria
 12
No. 46
Texas [USA]
 12
No. 47
Venezuela
 12
No. 48
Bahia [Brazil]
 11
No. 49
Central African Republic
 11
No. 50
Chihuahua [Mexico]
 11
No. 51
Goias [Brazil]
 11
No. 52
Guangdong [China]
 11
No. 53
Uganda
 11
No. 54
Argentina
 10
No. 55
California [USA]
 10
No. 56
Cameroon
 10
No. 57
Coahuila [Mexico]
 10
No. 58
Guerrero [Mexico]
 10
No. 59
Mexico state [Mexico]
 10
No. 60
Mexico state [Mexico]
 10
No. 61
Nuevo Leon [Mexico]
 10
No. 62
Parana [Brazil]
 10
No. 63
San Luis Potosi [Mexico]
 10
No. 64
Sumatra [Indonesia]
 10
No. 65
Tibet [China]
 10
No. 66
Tocantins [Brazil]
 10
No. 67
West Malaysia [Malaysia]
 10
No. 68
Zambia
 10
No. 69
Algeria
 9
No. 70
Arunachal Pradesh [India]
 9
No. 71
Chongqing [China]
 9
No. 72
Gansu [China]
 9
No. 73
Guizhou [China]
 9
No. 74
Hunan [China]
 9
No. 75
Ivory Coast
 9
No. 76
Maranhao [Brazil]
 9
No. 77
Mato Grosso do Sul [Brazil]
 9
No. 78
New Mexico [USA]
 9
No. 79
Nicaragua
 9
No. 80
Queretaro [Mexico]
 9
No. 81
Rio de Janeiro [Brazil]
 9
No. 82
Rondonia [Brazil]
 9
No. 83
Shaanxi [China]
 9
No. 84
South Sudan
 9
No. 85
Tamaulipas [Mexico]
 9
No. 86
Tunisia
 9
No. 87
West Bengal [India]
 9
No. 88
Aguascalientes [Mexico]
 8
No. 89
Amazonas [Brazil]
 8
No. 90
Anhui [China]
 8
No. 91
Azerbaijan
 8
No. 92
Bhutan
 8
No. 93
Cambodia
 8
No. 94
Chad
 8
No. 95
Fujian [China]
 8
No. 96
Ghana
 8
No. 97
Guinea
 8
No. 98
Morelos [Mexico]
 8
No. 99
Morocco
 8
No. 100
Mozambique
 8
No. 101
Oklahoma [USA]
 8
No. 102
Para [Brazil]
 8
No. 103
Rio Grande do Sul [Brazil]
 8
No. 104
Santa Catarina [Brazil]
 8
No. 105
Sergipe [Brazil]
 8
No. 106
Sudan
 8
No. 107
Tamil Nadu [India]
 8
No. 108
Togo
 8
No. 109
Utah [USA]
 8
No. 110
Western Cape [South Africa]
 8
No. 111
Zacatecas [Mexico]
 8
No. 112
Amapa [Brazil]
 7
No. 113
Baja California Sur [Mexico]
 7
No. 114
Ceara [Brazil]
 7
No. 115
Colima [Mexico]
 7
No. 116
Congo-Brazzaville
 7
No. 117
Distrito Federal (Brazil) [Brazil]
 7
No. 118
Durango [Mexico]
 7
No. 119
Eastern Cape [South Africa]
 7
No. 120
Ethiopia
 7
No. 121
Georgia
 7
No. 122
Inner Mongolia [China]
 7
No. 123
Israel
 7
No. 124
Jiangxi [China]
 7
No. 125
Kerala [India]
 7
No. 126
Liberia
 7
No. 127
Mali
 7
No. 128
Nagaland [India]
 7
No. 129
Namibia
 7
No. 130
Nayarit [Mexico]
 7
No. 131
Niger
 7
No. 132
Oman
 7
No. 133
Paraguay
 7
No. 134
Rwanda
 7
No. 135
Zhejiang [China]
 7
No. 136
Acre [Brazil]
 6
No. 137
Alabama [USA]
 6
No. 138
Alagoas [Brazil]
 6
No. 139
Assam [India]
 6
No. 140
Belize
 6
No. 141
Benin
 6
No. 142
Borneo [Brunei / Indonesia / Malaysia]
 6
No. 143
Burkina Faso
 6
No. 144
Burundi
 6
No. 145
Espirito Santo [Brazil]
 6
No. 146
Florida [USA]
 6
No. 147
French Guiana [France]
 6
No. 148
Gabon
 6
No. 149
Georgia [USA]
 6
No. 150
Guyana
 6
No. 151
Iraq
 6
No. 152
Japan
 6
No. 153
Kansas [USA]
 6
No. 154
Kazakhstan
 6
No. 155
Langkawi [Malaysia]
 6
No. 156
Langkawi Archipelago [Malaysia]
 6
No. 157
Maharashtra [India]
 6
No. 158
Malawi
 6
No. 159
Mauritania
 6
No. 160
Meghalaya [India]
 6
No. 161
Missouri [USA]
 6
No. 162
Nepal
 6
No. 163
Nevada [USA]
 6
No. 164
Northern Cape [South Africa]
 6
No. 165
Pakistan
 6
No. 166
Paraiba [Brazil]
 6
No. 167
Pernambuco [Brazil]
 6
No. 168
Roraima [Brazil]
 6
No. 169
Sabah [Malaysia]
 6
No. 170
Saudi Arabia
 6
No. 171
Sierra Leone
 6
No. 172
Sinaloa [Mexico]
 6
No. 173
Sri Lanka
 6
No. 174
Surinam
 6
No. 175
Taiwan
 6
No. 176
Yemen
 6
No. 177
Yemeni mainland [Yemen]
 6
No. 178
Zimbabwe
 6
No. 179
Andaman & Nicobar Islands [India]
 5
No. 180
Arkansas [USA]
 5
No. 181
Bangladesh
 5
No. 182
Cabinda [Angola]
 5
No. 183
Darjeeling [India]
 5
No. 184
Distrito Federal (Mexico) [Mexico]
 5
No. 185
Egypt
 5
No. 186
El Salvador
 5
No. 187
Equatorial Guinea
 5
No. 188
Goa [India]
 5
No. 189
Greece
 5
No. 190
Guanajuato [Mexico]
 5
No. 191
Hainan [China]
 5
No. 192
Iowa [USA]
 5
No. 193
Italian mainland [Italy]
 5
No. 194
Italy
 5
No. 195
Jammu & Kashmir [India]
 5
No. 196
Java [Indonesia]
 5
No. 197
Jilin [China]
 5
No. 198
Jordan
 5
No. 199
Kalimantan [Indonesia]
 5
No. 200
Karnataka [India]
 5
No. 201
KwaZulu-Natal [South Africa]
 5
No. 202
Kyrgyzstan
 5
No. 203
Limpopo [South Africa]
 5
No. 204
Mississippi [USA]
 5
No. 205
Nicobar Islands [India]
 5
No. 206
North Carolina [USA]
 5
No. 207
Philippines
 5
No. 208
Piaui [Brazil]
 5
No. 209
Rio Muni [Equatorial Guinea]
 5
No. 210
Ryukyu Islands [Japan]
 5
No. 211
Sarawak [Malaysia]
 5
No. 212
Siberut [Indonesia]
 5
No. 213
Sikkim [India]
 5
No. 214
South Carolina [USA]
 5
No. 215
Syria
 5
No. 216
Tabasco [Mexico]
 5
No. 217
Tlaxcala [Mexico]
 5
No. 218
Uttarakhand [India]
 5
No. 219
Western Sahara
 5
No. 220
Afghanistan
 4
No. 221
Albania
 4
No. 222
Armenia
 4
No. 223
Brunei
 4
No. 224
Campeche [Mexico]
 4
No. 225
Eswatini
 4
No. 226
France
 4
No. 227
French mainland [France]
 4
No. 228
Greek mainland [Greece]
 4
No. 229
Heilongjiang [China]
 4
No. 230
Henan [China]
 4
No. 231
Himachal Pradesh [India]
 4
No. 232
Hubei [China]
 4
No. 233
Illinois [USA]
 4
No. 234
Indiana [USA]
 4
No. 235
Jharkhand [India]
 4
No. 236
Jiangsu [China]
 4
No. 237
Kentucky [USA]
 4
No. 238
Liaoning [China]
 4
No. 239
Libya
 4
No. 240
Marajo Island [Brazil]
 4
No. 241
Mizoram [India]
 4
No. 242
Mongolia
 4
No. 243
Mpumalanga [South Africa]
 4
No. 244
Nebraska [USA]
 4
No. 245
North Korea
 4
No. 246
Qinghai [China]
 4
No. 247
Quintana Roo [Mexico]
 4
No. 248
Romania
 4
No. 249
Satsunan Islands [Japan]
 4
No. 250
Senegal
 4
No. 251
Shandong [China]
 4
No. 252
Simeulue [Indonesia]
 4
No. 253
Sinai [Egypt]
 4
No. 254
Somalia
 4
No. 255
Tajikistan
 4
No. 256
Tennessee [USA]
 4
No. 257
Turkmenistan
 4
No. 258
United Arab Emirates
 4
No. 259
Uzbekistan
 4
No. 260
Yucatan [Mexico]
 4
No. 261
Aegean Islands [Greece]
 3
No. 262
Andhra Pradesh [India]
 3
No. 263
Bangka [Indonesia]
 3
No. 264
Beijing [China]
 3
No. 265
Bioko [Equatorial Guinea]
 3
No. 266
Bosnia & Herzegovina
 3
No. 267
Botswana
 3
No. 268
Canada
 3
No. 269
Cat Ba Island [Vietnam]
 3
No. 270
Colorado [USA]
 3
No. 271
Croatia
 3
No. 272
Dinagat [Philippines]
 3
No. 273
Eritrea
 3
No. 274
European Turkey [Turkey]
 3
No. 275
Free State [South Africa]
 3
No. 276
Gambia
 3
No. 277
Gauteng [South Africa]
 3
No. 278
Guinea-Bissau
 3
No. 279
Gujarat [India]
 3
No. 280
Ha Long Bay Islands [Vietnam]
 3
No. 281
Hong Kong [China]
 3
No. 282
Idaho [USA]
 3
No. 283
Ilhabela Archipelago [Brazil]
 3
No. 284
Isla San Jose [Mexico]
 3
No. 285
Komodo [Indonesia]
 3
No. 286
Lebanon
 3
No. 287
Leyte [Philippines]
 3
No. 288
Macedonia
 3
No. 289
Madhya Pradesh [India]
 3
No. 290
Mindanao [Philippines]
 3
No. 291
Minnesota [USA]
 3
No. 292
Montenegro
 3
No. 293
New York [USA]
 3
No. 294
Ningxia [China]
 3
No. 295
North West Province [South Africa]
 3
No. 296
Odisha [India]
 3
No. 297
Ohio [USA]
 3
No. 298
Oregon [USA]
 3
No. 299
Pagai Islands [Indonesia]
 3
No. 300
Palawan [Philippines]
 3
No. 301
Palestine [Israel]
 3
No. 302
Penang Island [Malaysia]
 3
No. 303
Pennsylvania [USA]
 3
No. 304
Punjab [India]
 3
No. 305
Rio Grande do Norte [Brazil]
 3
No. 306
Samar [Philippines]
 3
No. 307
Serbia
 3
No. 308
Seribuat Archipelago [Malaysia]
 3
No. 309
Shanxi [China]
 3
No. 310
Singapore
 3
No. 311
Sipura [Indonesia]
 3
No. 312
Slovenia
 3
No. 313
South Korea
 3
No. 314
Spain
 3
No. 315
Spanish mainland [Spain]
 3
No. 316
Sulawesi [Indonesia]
 3
No. 317
Ukraine
 3
No. 318
Uruguay
 3
No. 319
Uttar Pradesh [India]
 3
No. 320
Virginia [USA]
 3
No. 321
Vitoria [Brazil]
 3
No. 322
Wyoming [USA]
 3
No. 323
Xinjiang [China]
 3
No. 324
Amami Islands [Japan]
 2
No. 325
Austria
 2
No. 326
Balabac [Philippines]
 2
No. 327
Bali [Indonesia]
 2
No. 328
Bihar [India]
 2
No. 329
Bijagos Archipelago [Guinea-Bissau]
 2
No. 330
Bohol [Philippines]
 2
No. 331
Bulgaria
 2
No. 332
Bunguran [Indonesia]
 2
No. 333
Connecticut [USA]
 2
No. 334
Cyclades Islands [Greece]
 2
No. 335
Daheishan Islands [China]
 2
No. 336
Flores [Indonesia]
 2
No. 337
Germany
 2
No. 338
Gorgona Island [Colombia]
 2
No. 339
Hebei [China]
 2
No. 340
Hungary
 2
No. 341
Isla Angel de la Guarda [Mexico]
 2
No. 342
Isla Carmen [Mexico]
 2
No. 343
Isla Cerralvo [Mexico]
 2
No. 344
Isla Espiritu Santo [Mexico]
 2
No. 345
Isla San Marcos [Mexico]
 2
No. 346
Isla Tortuga [Mexico]
 2
No. 347
Islas Coronados [Mexico]
 2
No. 348
Jolo [Philippines]
 2
No. 349
Kuwait
 2
No. 350
Lembata [Indonesia]
 2
No. 351
Lesotho
 2
No. 352
Luzon [Philippines]
 2
No. 353
Manipur [India]
 2
No. 354
Margarita [Venezuela]
 2
No. 355
Maryland [USA]
 2
No. 356
Massachusetts [USA]
 2
No. 357
Moldova
 2
No. 358
Nan Ao Island [China]
 2
No. 359
Natuna Islands [Indonesia]
 2
No. 360
Negros [Philippines]
 2
No. 361
New Jersey [USA]
 2
No. 362
Nias [Indonesia]
 2
No. 363
North Aegean Islands [Greece]
 2
No. 364
North Pagai [Indonesia]
 2
No. 365
Okinawa Islands [Japan]
 2
No. 366
Panay [Philippines]
 2
No. 367
Portugal
 2
No. 368
Portuguese mainland [Portugal]
 2
No. 369
Rajasthan [India]
 2
No. 370
Riau Islands [Indonesia]
 2
No. 371
Rinca [Indonesia]
 2
No. 372
Sao Sebastiao [Brazil]
 2
No. 373
Selayar Islands [Indonesia]
 2
No. 374
Sulu Islands [Philippines]
 2
No. 375
Sumbawa [Indonesia]
 2
No. 376
Switzerland
 2
No. 377
Tioman [Malaysia]
 2
No. 378
Tokara Islands [Japan]
 2
No. 379
Tokunoshima [Japan]
 2
No. 380
Trinidad [Trinidad & Tobago]
 2
No. 381
Trinidad & Tobago
 2
No. 382
Washington [USA]
 2
No. 383
West Virginia [USA]
 2
No. 384
Wisconsin [USA]
 2
No. 385
Adonara [Indonesia]
 1
No. 386
Alberta [Canada]
 1
No. 387
Alor [Indonesia]
 1
No. 388
Anambas Islands [Indonesia]
 1
No. 389
Andaman Islands [India]
 1
No. 390
Andorra
 1
No. 391
Aruba [Netherlands]
 1
No. 392
Babuyan Claro [Philippines]
 1
No. 393
Babuyan Islands [Philippines]
 1
No. 394
Batan [Philippines]
 1
No. 395
Batan Islands [Philippines]
 1
No. 396
Batu Islands [Indonesia]
 1
No. 397
Belarus
 1
No. 398
Belgium
 1
No. 399
Belitung [Indonesia]
 1
No. 400
British Columbia [Canada]
 1
No. 401
Buton [Indonesia]
 1
No. 402
Calayan [Philippines]
 1
No. 403
Camiguin Sur [Philippines]
 1
No. 404
Catanduanes [Philippines]
 1
No. 405
Cephalonia [Greece]
 1
No. 406
Channel Islands (California) [USA]
 1
No. 407
Chhattisgarh [India]
 1
No. 408
Coche [Venezuela]
 1
No. 409
Corfu [Greece]
 1
No. 410
Crimea [Ukraine]
 1
No. 411
Cyprus
 1
No. 412
Czech Republic
 1
No. 413
Dahlak Archipelago [Eritrea]
 1
No. 414
Dalupiri (Babuyan Islands) [Philippines]
 1
No. 415
Delaware [USA]
 1
No. 416
Delhi [India]
 1
No. 417
Denmark
 1
No. 418
Djibouti
 1
No. 419
Dodecanese Islands [Greece]
 1
No. 420
East Timor
 1
No. 421
Elba [Italy]
 1
No. 422
Endeh [Indonesia]
 1
No. 423
England [United Kingdom]
 1
No. 424
Estonia
 1
No. 425
Euboea [Greece]
 1
No. 426
Farasan Islands [Saudi Arabia]
 1
No. 427
Finland
 1
No. 428
Gibraltar [United Kingdom]
 1
No. 429
Haryana [India]
 1
No. 430
Hokkaido [Japan]
 1
No. 431
Hon Son Island [Vietnam]
 1
No. 432
Honshu [Japan]
 1
No. 433
Ilha de Alcatrazes [Brazil]
 1
No. 434
Ilha dos Franceses [Brazil]
 1
No. 435
Ionian Islands [Greece]
 1
No. 436
Isla Cabeza de Caballo [Mexico]
 1
No. 437
Isla Cedros [Mexico]
 1
No. 438
Isla Coronado Sur [Mexico]
 1
No. 439
Isla El Muerto [Mexico]
 1
No. 440
Isla Partida Sur [Mexico]
 1
No. 441
Isla Piojo [Mexico]
 1
No. 442
Isla San Esteban [Mexico]
 1
No. 443
Isla San Francisco [Mexico]
 1
No. 444
Isla San Lorenzo Sur [Mexico]
 1
No. 445
Isla San Pedro Martir [Mexico]
 1
No. 446
Isla Santa Catalina [Mexico]
 1
No. 447
Islas las Encantadas [Mexico]
 1
No. 448
Islas Marias [Mexico]
 1
No. 449
Ithaki [Greece]
 1
No. 450
Izu Islands [Japan]
 1
No. 451
Kangean Islands [Indonesia]
 1
No. 452
Karimunjawa Islands [Indonesia]
 1
No. 453
Kuril Islands [Russia]
 1
No. 454
Kyushu [Japan]
 1
No. 455
Lanyu Island [Taiwan]
 1
No. 456
Latvia
 1
No. 457
Liechtenstein
 1
No. 458
Lithuania
 1
No. 459
Lombok [Indonesia]
 1
No. 460
Los Testigos [Venezuela]
 1
No. 461
Macau [China]
 1
No. 462
Madura [Indonesia]
 1
No. 463
Maria Madre [Mexico]
 1
No. 464
Maria Magdalena [Mexico]
 1
No. 465
Martinique [France]
 1
No. 466
Masirah [Oman]
 1
No. 467
Michigan [USA]
 1
No. 468
Mindoro [Philippines]
 1
No. 469
Monaco
 1
No. 470
Montana [USA]
 1
No. 471
Netherlands
 1
No. 472
New Hampshire [USA]
 1
No. 473
North Dakota [USA]
 1
No. 474
Norway
 1
No. 475
Ontario [Canada]
 1
No. 476
Padar [Indonesia]
 1
No. 477
Pantar [Indonesia]
 1
No. 478
Peloponnese [Greece]
 1
No. 479
Penida [Indonesia]
 1
No. 480
Poland
 1
No. 481
Polillo [Philippines]
 1
No. 482
Qatar
 1
No. 483
Queimada Grande [Brazil]
 1
No. 484
Rote [Indonesia]
 1
No. 485
Saint Lucia
 1
No. 486
Sakhalin Island [Russia]
 1
No. 487
Sakishima Islands [Japan]
 1
No. 488
San Marino
 1
No. 489
Sangir Islands [Indonesia]
 1
No. 490
Saskatchewan [Canada]
 1
No. 491
Savu [Indonesia]
 1
No. 492
Scotland [United Kingdom]
 1
No. 493
Selayar [Indonesia]
 1
No. 494
Semau [Indonesia]
 1
No. 495
Shedao Island [China]
 1
No. 496
Shek Kwu Chau Island [China]
 1
No. 497
Shikoku [Japan]
 1
No. 498
Sicily [Italy]
 1
No. 499
Siquijor [Philippines]
 1
No. 500
Slovakia
 1
No. 501
South Dakota [USA]
 1
No. 502
South Pagai [Indonesia]
 1
No. 503
Sporades Islands [Greece]
 1
No. 504
Sumba [Indonesia]
 1
No. 505
Sweden
 1
No. 506
Tanahjampea [Indonesia]
 1
No. 507
Timor [East Timor / Indonesia]
 1
No. 508
Tinjil [Indonesia]
 1
No. 509
Tripura [India]
 1
No. 510
Tsushima Islands [Japan]
 1
No. 511
United Kingdom
 1
No. 512
Vermont [USA]
 1
No. 513
Wales [United Kingdom]
 1
No. 514
Washington, D.C. [USA]
 1
No. 515
West Timor [Indonesia]
 1
No. 516
Wetar [Indonesia]
 1
No. 517
Yaeyama Islands [Japan]
 1
No. 518
Zanzibar [Tanzania]
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