Genus Dermochelys (Leatherback Sea Turtle):
regions with most species  (as of 31st December 2018)

© Rune Midtgaard
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*Regions with same number of species are ranked alphabetically
Rank* Region Species 
No. 1
Admiralty Islands [Papua New Guinea]
 1
No. 2
Aegean Islands [Greece]
 1
No. 3
Alabama [USA]
 1
No. 4
Alagoas [Brazil]
 1
No. 5
Alaska [USA]
 1
No. 6
Albania
 1
No. 7
Algeria
 1
No. 8
Amapa [Brazil]
 1
No. 9
Andaman & Nicobar Islands [India]
 1
No. 10
Andaman Islands [India]
 1
No. 11
Andhra Pradesh [India]
 1
No. 12
Angola
 1
No. 13
Anguilla
 1
No. 14
Anguilla Island [Anguilla]
 1
No. 15
Antigua [Antigua & Barbuda]
 1
No. 16
Antigua & Barbuda
 1
No. 17
Argentina
 1
No. 18
Aruba [Netherlands]
 1
No. 19
Ascension [United Kingdom]
 1
No. 20
Australia
 1
No. 21
Azores [Portugal]
 1
No. 22
Bahamas
 1
No. 23
Bahia [Brazil]
 1
No. 24
Bahrain
 1
No. 25
Baja California Norte [Mexico]
 1
No. 26
Baja California Sur [Mexico]
 1
No. 27
Bali [Indonesia]
 1
No. 28
Bangladesh
 1
No. 29
Banyak Islands [Indonesia]
 1
No. 30
Barbados
 1
No. 31
Barbuda [Antigua & Barbuda]
 1
No. 32
Bazaruto [Mozambique]
 1
No. 33
Bazaruto Archipelago [Mozambique]
 1
No. 34
Belgium
 1
No. 35
Belize
 1
No. 36
Benin
 1
No. 37
Bermuda [United Kingdom]
 1
No. 38
Bijagos Archipelago [Guinea-Bissau]
 1
No. 39
Bioko [Equatorial Guinea]
 1
No. 40
Bismarck Archipelago [Papua New Guinea]
 1
No. 41
Blanquilla [Venezuela]
 1
No. 42
Bonaire [Netherlands]
 1
No. 43
Borneo [Brunei / Indonesia / Malaysia]
 1
No. 44
Bosnia & Herzegovina
 1
No. 45
Bougainville [Papua New Guinea]
 1
No. 46
Brazil
 1
No. 47
British Columbia [Canada]
 1
No. 48
British Virgin Islands [United Kingdom]
 1
No. 49
Brunei
 1
No. 50
California [USA]
 1
No. 51
Cambodia
 1
No. 52
Cameroon
 1
No. 53
Campeche [Mexico]
 1
No. 54
Canada
 1
No. 55
Canary Islands [Spain]
 1
No. 56
Cape Verde
 1
No. 57
Cayman Islands
 1
No. 58
Ceara [Brazil]
 1
No. 59
Cephalonia [Greece]
 1
No. 60
Chagos Archipelago [United Kingdom]
 1
No. 61
Channel Islands (UK) [United Kingdom]
 1
No. 62
Chiapas [Mexico]
 1
No. 63
Chile
 1
No. 64
China
 1
No. 65
Chuuk State [Micronesia]
 1
No. 66
Coche [Venezuela]
 1
No. 67
Colima [Mexico]
 1
No. 68
Colombia
 1
No. 69
Comoro Archipelago [Comoro Islands / France]
 1
No. 70
Comoro Islands
 1
No. 71
Congo-Brazzaville
 1
No. 72
Congo-Kinshasa
 1
No. 73
Connecticut [USA]
 1
No. 74
Cook Islands
 1
No. 75
Corfu [Greece]
 1
No. 76
Corsica [France]
 1
No. 77
Costa Rica
 1
No. 78
Cozumel [Mexico]
 1
No. 79
Crete [Greece]
 1
No. 80
Croatia
 1
No. 81
Cuba
 1
No. 82
Culebra [Puerto Rico]
 1
No. 83
Curacao [Netherlands]
 1
No. 84
Cyclades Islands [Greece]
 1
No. 85
Cyprus
 1
No. 86
Dahlak Archipelago [Eritrea]
 1
No. 87
Delaware [USA]
 1
No. 88
Denmark
 1
No. 89
d'Entrecasteaux Islands [Papua New Guinea]
 1
No. 90
Djibouti
 1
No. 91
Dodecanese Islands [Greece]
 1
No. 92
Dominica
 1
No. 93
Dominican Republic
 1
No. 94
Easter Island [Chile]
 1
No. 95
Eastern Cape [South Africa]
 1
No. 96
Eastern New Guinea [Papua New Guinea]
 1
No. 97
Ecuador
 1
No. 98
Ecuadorian mainland [Ecuador]
 1
No. 99
Egypt
 1
No. 100
El Salvador
 1
No. 101
England [United Kingdom]
 1
No. 102
Equatorial Guinea
 1
No. 103
Eritrea
 1
No. 104
Espanola [Ecuador]
 1
No. 105
Espirito Santo [Brazil]
 1
No. 106
Euboea [Greece]
 1
No. 107
Farasan Islands [Saudi Arabia]
 1
No. 108
Fiji
 1
No. 109
Floreana [Ecuador]
 1
No. 110
Florida [USA]
 1
No. 111
France
 1
No. 112
Fraser Island [Australia]
 1
No. 113
French Guiana [France]
 1
No. 114
French mainland [France]
 1
No. 115
Fujian [China]
 1
No. 116
Gabon
 1
No. 117
Galapagos Islands [Ecuador]
 1
No. 118
Gambia
 1
No. 119
Georgia [USA]
 1
No. 120
Germany
 1
No. 121
Ghana
 1
No. 122
Gibraltar [United Kingdom]
 1
No. 123
Goa [India]
 1
No. 124
Gorgona Island [Colombia]
 1
No. 125
Greece
 1
No. 126
Greek mainland [Greece]
 1
No. 127
Grenada
 1
No. 128
Grenada Island [Grenada]
 1
No. 129
Grenadines [Grenada / Saint Vincent & the Grenadines]
 1
No. 130
Guadeloupe [France]
 1
No. 131
Guam [USA]
 1
No. 132
Guangdong [China]
 1
No. 133
Guangxi [China]
 1
No. 134
Guatemala
 1
No. 135
Guerrero [Mexico]
 1
No. 136
Guinea
 1
No. 137
Guinea-Bissau
 1
No. 138
Gujarat [India]
 1
No. 139
Guyana
 1
No. 140
Haiti
 1
No. 141
Hawaii [USA]
 1
No. 142
Hispaniola [Dominican Republic / Haiti]
 1
No. 143
Honduras
 1
No. 144
Hong Kong [China]
 1
No. 145
Iceland
 1
No. 146
Iles de la Petite Terre [Guadeloupe]
 1
No. 147
Iles des Saintes [Guadeloupe]
 1
No. 148
India
 1
No. 149
Indonesia
 1
No. 150
Ionian Islands [Greece]
 1
No. 151
Iran
 1
No. 152
Iraq
 1
No. 153
Ireland [Republic of Ireland / United Kingdom]
 1
No. 154
Isabela [Ecuador]
 1
No. 155
Isla de Aves [Venezuela]
 1
No. 156
Islas Coronados [Mexico]
 1
No. 157
Islas Marias [Mexico]
 1
No. 158
Isle of Man [United Kingdom]
 1
No. 159
Israel
 1
No. 160
Italian mainland [Italy]
 1
No. 161
Italy
 1
No. 162
Ithaki [Greece]
 1
No. 163
Ivory Coast
 1
No. 164
Jalisco [Mexico]
 1
No. 165
Jamaica
 1
No. 166
Japan
 1
No. 167
Java [Indonesia]
 1
No. 168
Jiangsu [China]
 1
No. 169
Jordan
 1
No. 170
Kai Islands [Indonesia]
 1
No. 171
Kangaroo Island [Australia]
 1
No. 172
Kangean Islands [Indonesia]
 1
No. 173
Karnataka [India]
 1
No. 174
Kenya
 1
No. 175
Kerala [India]
 1
No. 176
Kiribati
 1
No. 177
Kuril Islands [Russia]
 1
No. 178
Kuwait
 1
No. 179
KwaZulu-Natal [South Africa]
 1
No. 180
Labrador [Canada]
 1
No. 181
Lagouvardis [Greece]
 1
No. 182
Lakshadweep [India]
 1
No. 183
Lebanon
 1
No. 184
Liaoning [China]
 1
No. 185
Liberia
 1
No. 186
Libya
 1
No. 187
Linosa Islands [Italy]
 1
No. 188
Long Island [USA]
 1
No. 189
Louisiana [USA]
 1
No. 190
Madagascar
 1
No. 191
Madeira [Portugal]
 1
No. 192
Maharashtra [India]
 1
No. 193
Maine [USA]
 1
No. 194
Malaysia
 1
No. 195
Maldives
 1
No. 196
Malta
 1
No. 197
Manus [Papua New Guinea]
 1
No. 198
Marajo Island [Brazil]
 1
No. 199
Maranhao [Brazil]
 1
No. 200
Margarita [Venezuela]
 1
No. 201
Marie-Galante [Guadeloupe]
 1
No. 202
Marshall Islands
 1
No. 203
Martinique [France]
 1
No. 204
Maryland [USA]
 1
No. 205
Mascarene Islands [France / Mauritius]
 1
No. 206
Masirah [Oman]
 1
No. 207
Massachusetts [USA]
 1
No. 208
Mauritania
 1
No. 209
Mauritius
 1
No. 210
Mauritius Island [Mauritius]
 1
No. 211
Mayotte [France]
 1
No. 212
Mexico
 1
No. 213
Michoacan [Mexico]
 1
No. 214
Micronesia
 1
No. 215
Mindanao [Philippines]
 1
No. 216
Mississippi [USA]
 1
No. 217
Mona [Puerto Rico]
 1
No. 218
Monaco
 1
No. 219
Montenegro
 1
No. 220
Montserrat [United Kingdom]
 1
No. 221
Morocco
 1
No. 222
Mozambique
 1
No. 223
Mujeres [Mexico]
 1
No. 224
Myanmar
 1
No. 225
Namibia
 1
No. 226
Nauru
 1
No. 227
Nayarit [Mexico]
 1
No. 228
Netherlands
 1
No. 229
Nevis [Saint Kitts & Nevis]
 1
No. 230
New Britain [Papua New Guinea]
 1
No. 231
New Brunswick [Canada]
 1
No. 232
New Caledonia [France]
 1
No. 233
New Guinea [Indonesia / Papua New Guinea]
 1
No. 234
New Hampshire [USA]
 1
No. 235
New Ireland [Papua New Guinea]
 1
No. 236
New Jersey [USA]
 1
No. 237
New South Wales [Australia]
 1
No. 238
New York [USA]
 1
No. 239
New Zealand
 1
No. 240
Newfoundland [Canada]
 1
No. 241
Newfoundland & Labrador [Canada]
 1
No. 242
Nicaragua
 1
No. 243
Nicobar Islands [India]
 1
No. 244
Nigeria
 1
No. 245
Norfolk Island [Australia]
 1
No. 246
Normanby [Papua New Guinea]
 1
No. 247
North Aegean Islands [Greece]
 1
No. 248
North Carolina [USA]
 1
No. 249
North Korea
 1
No. 250
North Solomon Islands [Papua New Guinea]
 1
No. 251
Northern Ireland [United Kingdom]
 1
No. 252
Northern Territory [Australia]
 1
No. 253
Norway
 1
No. 254
Nova Scotia [Canada]
 1
No. 255
Oaxaca [Mexico]
 1
No. 256
Odisha [India]
 1
No. 257
Oman
 1
No. 258
Oregon [USA]
 1
No. 259
Pakistan
 1
No. 260
Palau
 1
No. 261
Palawan [Philippines]
 1
No. 262
Panama
 1
No. 263
Papua New Guinea
 1
No. 264
Para [Brazil]
 1
No. 265
Paraiba [Brazil]
 1
No. 266
Parana [Brazil]
 1
No. 267
Pelagie Islands [Italy]
 1
No. 268
Peloponnese [Greece]
 1
No. 269
Pernambuco [Brazil]
 1
No. 270
Peru
 1
No. 271
Philippines
 1
No. 272
Piaui [Brazil]
 1
No. 273
Pitcairn Islands [United Kingdom]
 1
No. 274
Pohnpei [Micronesia]
 1
No. 275
Portugal
 1
No. 276
Portuguese mainland [Portugal]
 1
No. 277
Prince Edward Island [Canada]
 1
No. 278
Principe [Sao Tome & Principe]
 1
No. 279
Puerto Rican mainland [Puerto Rico]
 1
No. 280
Puerto Rico
 1
No. 281
Qatar
 1
No. 282
Quebec [Canada]
 1
No. 283
Queensland [Australia]
 1
No. 284
Quintana Roo [Mexico]
 1
No. 285
Redonda [Antigua & Barbuda]
 1
No. 286
Republic of Ireland
 1
No. 287
Reunion [France]
 1
No. 288
Revillagigedo Islands [Mexico]
 1
No. 289
Rhode Island [USA]
 1
No. 290
Rhodes [Greece]
 1
No. 291
Rio de Janeiro [Brazil]
 1
No. 292
Rio Grande do Norte [Brazil]
 1
No. 293
Rio Grande do Sul [Brazil]
 1
No. 294
Russia
 1
No. 295
Saba [Netherlands]
 1
No. 296
Sabah [Malaysia]
 1
No. 297
Saint Barthelemy [France]
 1
No. 298
Saint Croix [U.S. Virgin Islands]
 1
No. 299
Saint Helena [United Kingdom]
 1
No. 300
Saint Kitts [Saint Kitts & Nevis]
 1
No. 301
Saint Kitts & Nevis
 1
No. 302
Saint Lucia
 1
No. 303
Saint Martin [France / Netherlands]
 1
No. 304
Saint Vincent & the Grenadines
 1
No. 305
Santa Catarina [Brazil]
 1
No. 306
Santiago (Cape Verde) [Cape Verde]
 1
No. 307
Santiago (Galapagos Islands) [Ecuador]
 1
No. 308
Sao Paulo [Brazil]
 1
No. 309
Sao Tome [Sao Tome & Principe]
 1
No. 310
Sao Tome & Principe
 1
No. 311
Sarawak [Malaysia]
 1
No. 312
Saudi Arabia
 1
No. 313
Scotland [United Kingdom]
 1
No. 314
Senegal
 1
No. 315
Sergipe [Brazil]
 1
No. 316
Seychelles
 1
No. 317
Shandong [China]
 1
No. 318
Sicily [Italy]
 1
No. 319
Sierra Leone
 1
No. 320
Sinai [Egypt]
 1
No. 321
Sinaloa [Mexico]
 1
No. 322
Singapore
 1
No. 323
Sint Eustatius [Netherlands]
 1
No. 324
Slovenia
 1
No. 325
Socotra Archipelago [Yemen]
 1
No. 326
Solomon Archipelago [Papua New Guinea / Solomon Islands]
 1
No. 327
Solomon Islands
 1
No. 328
Solor [Indonesia]
 1
No. 329
Somalia
 1
No. 330
Sonora [Mexico]
 1
No. 331
South Africa
 1
No. 332
South Australia [Australia]
 1
No. 333
South Carolina [USA]
 1
No. 334
South Korea
 1
No. 335
Spain
 1
No. 336
Spanish mainland [Spain]
 1
No. 337
Sporades Islands [Greece]
 1
No. 338
Sri Lanka
 1
No. 339
Strofades Islands [Greece]
 1
No. 340
Sudan
 1
No. 341
Sumatra [Indonesia]
 1
No. 342
Supiori [Indonesia]
 1
No. 343
Surinam
 1
No. 344
Sweden
 1
No. 345
Syria
 1
No. 346
Tabasco [Mexico]
 1
No. 347
Taiwan
 1
No. 348
Tamaulipas [Mexico]
 1
No. 349
Tamil Nadu [India]
 1
No. 350
Tanzania
 1
No. 351
Tasmania [Australia]
 1
No. 352
Texas [USA]
 1
No. 353
Thailand
 1
No. 354
Tobago [Trinidad & Tobago]
 1
No. 355
Togo
 1
No. 356
Tonga
 1
No. 357
Trinidad [Trinidad & Tobago]
 1
No. 358
Trinidad & Tobago
 1
No. 359
Tristan da Cunha [United Kingdom]
 1
No. 360
Trobriand Islands [Papua New Guinea]
 1
No. 361
Tunisia
 1
No. 362
Turkey
 1
No. 363
Turks & Caicos Islands
 1
No. 364
Tuvalu
 1
No. 365
U.S. Virgin Islands [USA]
 1
No. 366
United Arab Emirates
 1
No. 367
United Kingdom
 1
No. 368
Uruguay
 1
No. 369
USA
 1
No. 370
Vancouver Island [Canada]
 1
No. 371
Vanua Levu [Fiji]
 1
No. 372
Vanuatu
 1
No. 373
Venezuela
 1
No. 374
Veracruz [Mexico]
 1
No. 375
Victoria [Australia]
 1
No. 376
Vietnam
 1
No. 377
Virginia [USA]
 1
No. 378
Viti Levu [Fiji]
 1
No. 379
Wales [United Kingdom]
 1
No. 380
Washington [USA]
 1
No. 381
West Bengal [India]
 1
No. 382
West Malaysia [Malaysia]
 1
No. 383
Western Australia [Australia]
 1
No. 384
Western New Guinea [Indonesia]
 1
No. 385
Western Samoa
 1
No. 386
Yap State [Micronesia]
 1
No. 387
Yemen
 1
No. 388
Yemeni mainland [Yemen]
 1
No. 389
Zakynthos [Greece]
 1
No. 390
Zanzibar [Tanzania]
 1
No. 391
Zhejiang [China]
 1