242 DR. H. GADOW ON MEXICAN [June 6, 
Nearctic, extending into: NEOTROPICAL. 
Not beyond Mexico. Central America. Antilles. 
Pelobatidze 
Desmognathinee 
Amblystomatine 
Plethodontinze % ee 
Heloderma__ _ 
Xenosaurus__ _ 
Xantusiide : a. Sonoran 
6. Southern 56 
Anguidee 
x > 
Amphisbheenidee 8 fe 
Tguanidee: a. Xerophile 
b. Hygrophile 
Glauconiidee 
Boidee 
Crotalinee 
Colubrine Aglypha 
_ | Colubrinee 
| Opisthoglypha. 
__Hlapine. 
———_——— SS SS es ee 
es HY 
ee Tejidee. 
= 
— 
ow“ 
— 
es | ee ee ae ene Ov suicomating ces 
¥ Hylide. 
x“ Bufonide. 
Chelonia: Testudinidee BAG YB. 
Cinosternidee a mi ae 
Dermatemydidee__ fn ta0d 
Typhlopidee. 
a Geckonide. 
pees AOL Sea Beno ystomentce: 
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. If it ever existed, it must have been very transitory. Amphibia 
