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Biodiversity of the reptile genera of Isla San Marcos  [Mexico]excl. introduced, extinct, unconfirmed, and unnamed species |
Species |
Endemic species |
Endemism (species) |
Species in % of all reptile species in Isla San Marcos |
 | ||||
| Lizards (Sauria) | ||||
| Family Eublepharidae (Eyelid Geckos) |
Species | Endemic species |
Endemism (species) |
Species in % of all reptile species in Isla San Marcos |
| Coleonyx (Banded Eyelid Geckos) | 1 | 1 | 100.0 % | 10.0 % |
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| Snakes (Serpentes) | ||||
| Family Boidae (Typical Boas) |
Species | Endemic species |
Endemism (species) |
Species in % of all reptile species in Isla San Marcos |
| Lichanura (Rosy Boas) | 1 | 0 | 0.0 % | 10.0 % |
| Family Colubridae (Typical Snakes) |
Species | Endemic species |
Endemism (species) |
Species in % of all reptile species in Isla San Marcos |
| Hypsiglena (North American Night Snakes) | 2 | 0 | 0.0 % | 20.0 % |
| Masticophis (North American Whip Snakes & Coachwhips) | 1 | 0 | 0.0 % | 10.0 % |
| Phyllorhynchus (American Leaf-nosed Snakes) | 1 | 0 | 0.0 % | 10.0 % |
| Trimorphodon (Lyre Snakes) | 1 | 0 | 0.0 % | 10.0 % |
| Family Leptotyphlopidae (Thread Snakes) |
Species | Endemic species |
Endemism (species) |
Species in % of all reptile species in Isla San Marcos |
| Rena (Maroon Thread Snakes) | 1 | 0 | 0.0 % | 10.0 % |
| Family Viperidae (Vipers) |
Species | Endemic species |
Endemism (species) |
Species in % of all reptile species in Isla San Marcos |
| Crotalus (Typical Rattlesnakes) | 2 | 0 | 0.0 % | 20.0 % |