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Show N e a r c t i c , extending into: N e o t r o p i c a l . Hot beyond Mexico. Central America. Antilles. Pelobatidae________ 242 DR. h . GADOW o n M e x i c a n [June 6, Hanidae ___ Desmognathinae____ Amblvstomatinae Fletliodontiiife Heloderma Xenosaurua Xantusiidae : a. Sonoran b. Southern Anguidae Amphisbaenidae -/T Iguanidae: a. Xerophile b. Hygrophile Glauconiidse Boida3 Crotalinae Colnbiinae Aglypha_ ----------------- 1 Colubrinte j Opisthoglypka. ______ Elapinae. . - _______ Typhlopidae. ________Tejidae. . G eckoni dte. __________Engystomatidae. -At Cvstignathidae. . % Hy lidae. Rufonidflp. Chelonia: Testudinidae_ Cin isternidae Dermatemydidae dispersal so far as America is concerned. Those which have sent forms into the Greater Antilles are also indicated. The Greater Antilles have received their fauna* from Nearctic * Gregory thinks it is " almost certain " that Yucatan was connected with Cuba. Other zoogeographers have likewise assumed this connection, and it looks very plausible on the map. I f it ever existed, it must have been very transitory. Amphibia |