Family Viperidae (Vipers):
countries with most species

Rune Midtgaard
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*Countries with same number of species are ranked alphabetically
Rank* Country 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
Costa Rica
17
No. 12
Ecuador
17
No. 13
Guatemala
15
No. 14
Myanmar
15
No. 15
Panama
15
No. 16
Russia
15
No. 17
Turkey
15
No. 18
Bolivia
14
No. 19
Iran
14
No. 20
Laos
14
No. 21
Malaysia
14
No. 22
Tanzania
14
No. 23
Honduras
13
No. 24
Kenya
13
No. 25
South Africa
13
No. 26
Angola
12
No. 27
Congo-Kinshasa
12
No. 28
Nigeria
12
No. 29
Venezuela
12
No. 30
Central African Republic
11
No. 31
Uganda
11
No. 32
Argentina
10
No. 33
Cameroon
10
No. 34
Zambia
10
No. 35
Algeria
9
No. 36
Ivory Coast
9
No. 37
Nicaragua
9
No. 38
South Sudan
9
No. 39
Tunisia
9
No. 40
Azerbaijan
8
No. 41
Bhutan
8
No. 42
Cambodia
8
No. 43
Chad
8
No. 44
Ghana
8
No. 45
Guinea
8
No. 46
Morocco
8
No. 47
Mozambique
8
No. 48
Sudan
8
No. 49
Togo
8
No. 50
Congo-Brazzaville
7
No. 51
Ethiopia
7
No. 52
Georgia
7
No. 53
Israel
7
No. 54
Liberia
7
No. 55
Mali
7
No. 56
Namibia
7
No. 57
Niger
7
No. 58
Oman
7
No. 59
Paraguay
7
No. 60
Rwanda
7
No. 61
Belize
6
No. 62
Benin
6
No. 63
Burkina Faso
6
No. 64
Burundi
6
No. 65
French Guiana [France]
6
No. 66
Gabon
6
No. 67
Guyana
6
No. 68
Iraq
6
No. 69
Japan
6
No. 70
Kazakhstan
6
No. 71
Malawi
6
No. 72
Mauritania
6
No. 73
Nepal
6
No. 74
Pakistan
6
No. 75
Saudi Arabia
6
No. 76
Sierra Leone
6
No. 77
Sri Lanka
6
No. 78
Surinam
6
No. 79
Taiwan
6
No. 80
Yemen
6
No. 81
Zimbabwe
6
No. 82
Bangladesh
5
No. 83
Egypt
5
No. 84
El Salvador
5
No. 85
Equatorial Guinea
5
No. 86
Greece
5
No. 87
Italy
5
No. 88
Jordan
5
No. 89
Kyrgyzstan
5
No. 90
Philippines
5
No. 91
Syria
5
No. 92
Western Sahara
5
No. 93
Afghanistan
4
No. 94
Albania
4
No. 95
Armenia
4
No. 96
Brunei
4
No. 97
Eswatini
4
No. 98
France
4
No. 99
Libya
4
No. 100
Mongolia
4
No. 101
North Korea
4
No. 102
Romania
4
No. 103
Senegal
4
No. 104
Somalia
4
No. 105
Tajikistan
4
No. 106
Turkmenistan
4
No. 107
United Arab Emirates
4
No. 108
Uzbekistan
4
No. 109
Bosnia & Herzegovina
3
No. 110
Botswana
3
No. 111
Canada
3
No. 112
Croatia
3
No. 113
Eritrea
3
No. 114
Gambia
3
No. 115
Guinea-Bissau
3
No. 116
Lebanon
3
No. 117
Macedonia
3
No. 118
Montenegro
3
No. 119
Serbia
3
No. 120
Singapore
3
No. 121
Slovenia
3
No. 122
South Korea
3
No. 123
Spain
3
No. 124
Ukraine
3
No. 125
Uruguay
3
No. 126
Austria
2
No. 127
Bulgaria
2
No. 128
Germany
2
No. 129
Hungary
2
No. 130
Kuwait
2
No. 131
Lesotho
2
No. 132
Moldova
2
No. 133
Portugal
2
No. 134
Switzerland
2
No. 135
Trinidad & Tobago
2
No. 136
Andorra
1
No. 137
Aruba [Netherlands]
1
No. 138
Belarus
1
No. 139
Belgium
1
No. 140
Cyprus
1
No. 141
Czech Republic
1
No. 142
Denmark
1
No. 143
Djibouti
1
No. 144
East Timor
1
No. 145
Estonia
1
No. 146
Finland
1
No. 147
Gibraltar [United Kingdom]
1
No. 148
Latvia
1
No. 149
Liechtenstein
1
No. 150
Lithuania
1
No. 151
Martinique [France]
1
No. 152
Monaco
1
No. 153
Netherlands
1
No. 154
Norway
1
No. 155
Poland
1
No. 156
Qatar
1
No. 157
Saint Lucia
1
No. 158
San Marino
1
No. 159
Slovakia
1
No. 160
Sweden
1
No. 161
United Kingdom
1