- Common names: rosy boas, rubber boas.
Found in North America from southwestern Canada south through the western United States into northwestern Mexico. Also found in west and central Africa from Liberia and Sierra Leone to Cameroon (including Bioko Island), the Central African Republic, Gabon, the Republic of the Congo and the Democratic Republic of the Congo. In the DRC, it is found almost as far east as Lake Kivu.
|Species||Taxon author||Subsp.*||Common name||Geographic range|
|C. bottaeT||(Blainville, 1835)||0||Rubber boa||Southwestern Canada in southeastern British Columbia. The northwestern and western United States in most of Washington, Oregon, Idaho, western Montana and Wyoming, northern and central Utah, and as far south as northern Nevada and Monterey County, California.|
|C. reinhardtii||(Schlegel, 1848)||0||Calabar ground boa||West and central Africa from Liberia and Sierra Leone to Cameroon (including Bioko Island), the Central African Republic, Gabon, the Republic of the Congo and the Democratic Republic of the Congo. In the DRC, it is found almost as far east as Lake Kivu.|
|C. trivirgata||(Cope, 1861)||2||Rosy boa||The United States in southern California and southwestern Arizona. Mexico in the Baja California peninsula and in western Sonora.|
|C. umbratica||Klauber, 1943||0||Southern rubber boa||The United States in southern California (Riverside and San Bernardino counties).|
Sources vary on how many species the genus contains. Some consider the rubber boa, C. bottae, to be the sole member of the genus, although recent research has included the rosy boa, C. (Lichanura) trivirgata. In addition, some experts consider the southern rubber boa, C. umbratica to be a subspecies of C. bottae. The strangest inclusion, however, must be that of the Calabar python, C. (Calabaria) reinhardtii, which is found half way around the world from the others.
- McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1. Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
- "Charina". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=174325. Retrieved 6 July 2008.
- Wright AH, Wright AA. 1957. Handbook of Snakes. 2 volumes. Comstock Publishing Associates. (7th printing, 1985). 1105 pp. ISBN 0-8014-0463-0.
- Mehrtens JM. 1987. Living Snakes of the World in Color. New York: Sterling Publishers. 480 pp. ISBN 0-8069-6460-X.
- Gray, J.E. 1849. Catalogue of the Specimens of Snakes in the Collection of the British Museum. Trustees of the British Museum. London. xv + 125 pp. (Charina, p. 113.)