| Dipsosaurus dorsalis subsp. catalinensis Van Denburgh, 1922 |
| Dipsosaurus dorsalis subsp. dorsalis (Baird & Girard, 1852) |
| Dipsosaurus dorsalis subsp. lucasensis Van Denburgh, 1920 |
| Dipsosaurus dorsalis subsp. sonoriensis Allen, 1933 |
| Enyaliosaurus Gray, 1845 |
| Enyaliosaurus clarki (Bailey, 1928) |
| Enyaliosaurus defensor (Cope, 1866) |
| Iguana Gronovius, 1763 |
| Iguana iguana (Linnaeus, 1758) |
| Iguana rhinolopha Wiegmann, 1834 |
| Iguana similis Gray, 1831 |
| Iguana tuberculata Laurenti, 1768 |
| Iguanidae Oppel, 1811 |
| Sauromalus Duméril, 1856 |
| Sauromalus ater Duméril, 1856 |
| Sauromalus ater subsp. ater Duméril, 1856 |
| Sauromalus ater subsp. klauberi Shaw, 1941 |
| Sauromalus ater subsp. townsendi Dickerson, 1919 |
| Sauromalus australis Shaw, 1945 |
| Sauromalus hispidus Stejneger, 1891 |