Dwarf boa
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The dwarf boas are a group of snakes traditionally classified as the family Tropidophiidae but sometimes as the subfamily Tropidophiinae within the family Boidae.
The family is confined to the neotropics, with the greatest diversity being in Cuba where new species are being discovered frequently. These snakes are very small, averaging to about 30-60 cm in total lengh. Most species spend their day burrowed underground or under vegetation, surfacing only at night or when it rains. Some species are arboreal and are ofter seen hiding in bromeliads in trees. The dwarf boas have the ability to change color from light (when they are active at night) to dark (inactive in the day). This color change is brought about by the movement of dark pigment granules.
When the dwarf boas feel threatened, they will coil up into a tight ball like several other snakes. A more peculiar defensive behavior observed by these snakes is the ability for the snake voluntarily bleed from the eyes, mouth and nostrils.
[edit] Species
Genus Exiliboa
- Oaxacan Dwarf Boa, Exiliboa placata (Bogert, 1968)
Genus Trachyboa
- Northern Eyelash Boa, Trachyboa boulengeri (Peracca, 1910)
- Ecuadorian Eyelash Boa, Trachyboa gularis (Peters, 1860)
Genus Tropidophis
- Ecuadorian Dwarf Boa, Tropidophis battersbyi (Peters, 1949)
- Navassa Island Dwarf Boa, Tropidophis bucculentus (Cope, 1868)
- Bahamian Dwarf Boa, Tropidophis canus
- Great Inagua Island Dwarf Boa, Tropidophis canus canus (Cope, 1868)
- Andros Island Dwarf Boa, Tropidophis canus androsi (Stull, 1927)
- Eastern Bahama Islands Dwarf Boa, Tropidophis canus barbouri (Bailey, 1937)
- Bimini Island Dwarf Boa, Tropidophis canus curtus (Garman, 1887)
- Cayman Islands Dwarf Boa, Tropidophis caymanensis
- Grand Cayman Dwarf BoaTropidophis caymanensis caymanensis (Battersy, 1938)
- Little Cayman Dwarf Boa, Tropidophis caymanensis parkeri (Grant, 1941)
- Cayman Brac Island Dwarf Boa, Tropidophis caymanensis schwartzi (Thomas, 1963)
- Canasi Dwarf Boa, Tropidophis celiae (Hedges,Estrada,Diaz, 1999)
- Broad-banded Dwarf Boa, Tropidophis feicki (Schwartz, 1957)
- Cuban Dusky Dwarf Boa, Tropidophis fuscus (Hedges&Garrido, 1992)
- Escambary White-necked Dwarf Boa, Tropidophis galacelidus (Schwartz&Garrido, 1975)
- Caicos Dwarf Boa, Tropidophis greenvayi
- Caicos Island Dwarf Boa, Tropidophis greenvayi greenvayi (Barbour&Shreve, 1936)
- Ambergris Cay Dwarf Boa, Tropidophis greenvayi lanthanus (Schwartz, 1963)
- Haitian Dwarf Boa, Tropidophis haetianus
- Haitian Dwarf Boa, Tropidophis haetianus haetianus (Cope, 1879)
- East Hispanola Dwarf Boa, Tropidophis haetianus hemerus (Schwartz, 1975)
- Southern Jamaican Dwarf Boa, Tropidophis haetianus jamaicensis (Stull, 1928)
- Northern Jamaican Eyespot Dwarf Boa, Tropidophis haetianus stejnegeri (Grant, 1940)
- Portland Ridge Dwarf Boa, Tropidophis haetianus stullae (Grant, 1940)
- Tiburon Dwarf Boa, Tropidophis haetianus tiburonensis (Schwartz, 1975)
- Cuban Khaki Dwarf Boa, Tropidophis hendersoni (Hedges&Garrido, 2002)
- Spotted Red Dwarf Boa, Tropidophis maculatus (Bibron, 1843)
- Cuban Giant Dwarf Boa, Tropidophis melanurus
- Cuban Black-tailed Dwarf Boa, Tropidophis melanurus melanurus (Schlegel, 1837)
- Isla de Pinos Dwarf Boa, Tropidophis melanurus dysodes (Schwartz&Thomas, 1960)
- Juventud Dwarf Boa, Tropidophis melanurus eriksoni (Schwartz&Thomas, 1960)
- Zebra Dwarf Boa, Tropidophis morenoi (Hedges,Garrido&Diaz, 2001)
- Black-bellied Dwarf Boa, Tropidophis nigriventris
- Cuban Black-bellied Dwarf Boa, Tropidophis nigriventris nigriventris (Bailey, 1937)
- Hardy's Black-bellied Dwarf Boa, Tropidophis nigriventris hardyi
- Leopard Dwarf Boa, Tropidophis pardalis (Gundlach, 1840)
- Brazilian Dwarf Boa, Tropidophis paucisguamis (Muller, 1901)
- Cuban White-necked Dwarf Boa, Tropidophis pilsbryi
- Pilsbry's Dwarf Boa, Tropidophis pilsbryi pilsbryi (Bailey, 1937)
- Sierra de Trinidad Dwarf Boa, Tropidophis pilsbryi galacelidus
- Yellow-banded Dwarf Boa, Tropidophis semicinctus (Gundlach&Peters, 1864)
- Sancti Spiritus Dwarf Boa, Tropidophis spiritus (Hedges&Garrido, 1999)
- Taczanowski's Dwarf Boa, Tropidophis taczanowski (Steintachner, 1880)
- Gracile Banded Dwarf Boa, Tropidophis wrighti (Stull, 1928)
- Guanahacabibes Dwarf Boa, Tropidophis xanthogaster (Dominguez,Moreno&Hedges, 2006)
Genus Ungaliophis
- Chiapan Boa, Ungaliophis continentalis (Muller, 1880)
- Panamanian Dwarf Boa, Ungaliophis panamensis (Schmidt, 1933)
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