??.
NOTES: "Hispaniola" here refers to Haiti and Western Dominica. Unless otherwise stated, all islands are in the Caribbean region.
| Scientific Name | Common Name | Distribution | Size | Notes |
| C. acanthura | Mexican Spinytail | Cuba | TL 1.4m (m), 1m (f) | ??. |
| C. alfredschmidti | Mexico (Campeche), Guatemala | 8" | ??. | |
| C. bakeri | Baker's Spinytail Iguana, Isla de Utilla Iguana | Honduras (Utila Island and a few neighbouring islands) | ?" | ??. |
| C. clarki | Michoacan Club-Tail, Balsas Armed Lizard | W Mexico (Michoacan) | TL 18-28 cm (m), 16-20 cm (f) | Known mainly from Tepalcatepec Valley. |
| C. defensor | Yucatán Spinytail Iguana, Lagartijo de Maya Iguana | Mexico (Campeche, Yucatan) | TL 16-20 cm (m), 14-18 cm (f) | ??. |
| C. flavidorsalis | Honduras, El Salvador, Guatemala | 3-4?" | Originally considered a form of C. quinquecarinata. | |
| C. hemilopha | Cape Spinytail Iguana | NW Mexico (SE Baja California, Sonora, Sinaloa, W Chihuahua and islands in the Gulf of California) | Max SVL 30cm | Identifiable in its region by single slightly enlarged middorsal scale row forming a weak crest |
| C. h. hemilopha |
Baja Iguana | Cuba, Honduras, Mexico (Quintana Roo), Belize, Islas de la Bahia | 6-8" | ??. |
| C. h. conspicuosa | Isla de San Esteban Iguana | Mexico (Isla San Estaban, Sonora) | 7½" | ??. |
| C. h. insulana | Isla Cerralvo Iguana | Mexico (Isla Cerralvo in Gulf of California) | 4?" | Confined to small island of Alto Velo off the Dominican Republic. No other information available. |
| C. h. macrolopha | Sonoran Spiny-Tailed Iguana | Mexico (Sonora south to mid-Sinoloa) | 4-5" | ??. |
| C. h. nolascensis | Isla San Pedro Nolasco Iguana | Isla San Pedro Nolasco | 4" | Considered a full species by some authorities, eg Grismer. |
| C. melanosterna | Honduras | 5-6" | ??. | |
| C. oaxacana | Statia Bank Tree Anole | Mexico (Oaxaca) | 8-12" | ??. |
| C. oedirhina | De Queiroz's Spinytail Iguana, Isla de Roatan Iguana | Honduras (Roatan Island) | TL 60 cm (m), 40 cm (f) | |
| C. palearis | Paleata Spinytail Iguana | SE Guatemala | TL 90cm (m), 68 cm (f) | ??. |
| C. pectinata | Western Spinytail Iguana | W Mexico: USA (introduced into Florida and S Texas) | 10" | ??. |
| C. quinquecarinata | Oaxacan Spinytail Iguana, Club-Tailed Iguana | S Mexico, Nicaragua, El Salvador, Costa Rica | TL 25-35 cm (m), 18-25 cm (f), max 25/40cm (f/m) | The exceptionally large individuals are found in S Nicaragua []. |
| C. similis | Black Iguana, Garrobo, Central American Spiny-Tailed Iguana | S Mexico (Yucatan), Nicaragua, Guatemala, El Salvador, Honduras, Belize, Costa Rica, Panama, Colombia (two islands): USA (introduced into Florida) | TL 1.5m (m), 1m+ (f) | ??. |
| C. s. similis | Hispaniola, Ile de la Gonave, Ile de la Tortue, Isla Saona; Florida (introduced), Surinam (introduced). | ?" | ??. | |
| C. s. multipunctata | Puerto Rico and neighbouring islands: Florida (introduced) | 7" | ??. |
Green Iguanas and other Iguanids, Dr Hubert Bosch and Heiko Werning, TFH 1996 (originally published in German, 1991, as Leguane). See Iguanid page for recommendation of this book.
Amphibians and Reptiles of Baja California, Grismer, L Lee Grismer, University of California Press, 2002. Impressive guide to the herpetofauna of the region.
"Variation, Distribution, and Ecology of the Iguanid Lizard Enyaliosaurus clarki of Michoacan, Mexico", William S Duellman and Ann S Duellman, Occasional Papers of the Museum of Zoology, University of Michigan, February 16 1959.
See also Index of Iguanid Related Articles for articles on Anolis species by Jerry G Walls and Axel Flaschendräger, both of which were invaluable.
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