390 



GEOGRAPHICAL ZOOLOGY. 



[part IV. 



Family 31.— HELODERMIDyE. (1 Genus, 1 Species.) 



General Distribution. 



The genus Heloderma, which constitutes this family, is found 

 n Mexico. 



Family 32.— TEID^. (12 Genera, 74 Species.) 



General Distribution. 



The Teidce, or Teguexins — a group of Lizards allied to the 

 European Lacertidee, but with differently formed superciliary 

 scales — are highly characteristic of the Neotropical region, 

 abounding almost everywhere from Patagonia to the Antilles 

 and Mexico, and extending northwards to California on the west 

 and to Pennsylvania on the east. The most extensive genus is 

 Ameiva, containing nearly 60 species and having the range of 

 the entire family ; TViws (3 sp.), inhabits Brazil and Mendoza; 

 Callojjistes (2 sp.), Chili; (7e?i^ro2)y/.7? (3 sp.), Paraguay to Alabama; 

 Dicrodon (Peru); Monoplocus (Western Ecuador); with Acrantus, 

 Acantho2'>ygct, Emminia, Crocodihirus, Custa, and Ada, which 

 each consist of a single species, and all inhabit Tropical America. 



Family 33.— LACERTID^. (18 Genera, 80 Species.) 



General Distribution. 



Neotropical Nearctic PALiEARcric I Ethiopian I Oriental 

 Sub-regions. Sub-regions. Sub-keoioss. Sub-reoions. Sub-regions. 



Australian 



SUB-REGIONa 



I. 2. 3. A 1.2.3—1.2.3.4. 



