CLASSIFICATION AND DISTRIBUTION OF ANIMALS. 353 



Indies ; eight p.g. of Echimyidce (spiny rats) ; two p.g. of Cercola- 

 bidce (tree porcupines). Solenodon (a hedgehog-like form from 

 Cuba and Hayti). Twenty-six p.g. of bats, including the Vampires. 

 Five p.g. of Canidce; three p.g. of Mustelidce; Nasua (coati) and 

 Cercoleptes (Kinkajou) ; Tremarctos (spectacled bear) ; Otaria 

 (an eared seal). 



Peculiar Species. Among these are twenty species of Didelphys 

 (to which genus most opossums belong). The American tapir. 

 A species of racoon (genus Procyon). 



Absent Forms. Ungulata are scarce, deer and llamas being the 

 only ruminants, tapirs and peccaries the only non-ruminants. 

 The only insectivores are Solenodon and a species of shrew 

 (Sorex). The Viverridce are absent. 



VI. Nearctic Region. Thirty-two families are represented, of 

 which one is peculiar, while one other is almost so i.e., Haploo- 

 dontidce (rat-like forms allied to beavers and marmots), and 

 Saccomyidce (the pouched rats, of which one genus ranges into 

 the N. of the Neotropical region). 



Peculiar Genera (besides those in the above families). Antilo- 

 capra (prong-horned antelope), Aplocems (a goat-like antelope), 

 and Ovibos (the musk-sheep). Three p.g. of Muridce; Jaculus 

 (a jerboa), Cynomys (the so-called prairie dog), and Erethizon 

 (the tree porcupine). Three p.g. of moles; two p.g. of bats; 

 two p.g. of Mustelidce; Eumetopias (an eared seal) ; Halicyon 

 (a seal). 



Peculiar Species. Among these are two of Didelphys, a peccary, 

 several deer, the American bison, racoons, and the grizzly bear 

 (Ursus ferox). 



Absent Forms. Ungulates are ill represented, deer, the American 

 bison, two antelopes, a sheep, and the musk-sheep being the only 

 ruminants, while a peccary (Texas to Red River) is the only 

 non-ruminant. Hedgehogs, Viverridce, and monkeys are all unre- 

 presented. 



Distribution of Orders. 



1. Monotremata. Consists of only three genera, limited to 

 part of the Australian region. Ornithorhynclius, Australia and 

 Tasmania ; Echidna, Australia, Tasmania, and N. New Guinea ; 

 Proechidna, S. New Guinea. 



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