258 



VERTEBRATA. 



characters afforded by the auditory bulla and surrounding part 

 at the base of the skull. He divides it into three groups ^Elu- 

 roidea, Cynoidea, and Arctoidea. They are given below as well 

 as the families belonging to them. It is unfortunate that the two 

 names ^Eluroidea and jEluridas should clash, as not belonging to 

 the same " sections." 



The Pinnipedia are sometimes placed in this order. The first 

 four families in the following list are plantigrade ; the remainder, 

 with some exceptions, are digitigrade. 



ARCTOIDEA. 



Ursid(S. 

 Prochilus. 

 Helarctos (Sun- 



bear). 

 Ursus (Bear). 



Procyonidee. 

 Procyon (Eacoon). 

 Bassaris. 

 Nasua. 



Cercoleptes. 



JELurida. 

 ^Elurus. 



MustelidcB. 

 Gulo. 

 Galictis. 



Putorius (Polecat 



&c.). 



Mustela (Martin). 

 Mellivora. 

 Mephitis (Skunk). 

 Mydaus. 

 Meles (Badger). 

 Pteronura. 

 Enhydra. 

 Lutra (Otter). 



CYNOIDEA. 



Canidce. 

 Megaloti.s. 

 Vulpes (Fox). 

 Canis (Dog). 



Felida. 

 Lynx (Lynx). 



Felis (Cat, Lion, &c.). 

 *Machaerodus. 



Hycenida. 



Proteles. 

 Hyaena. 



Viverrida. 



Herpestes (Man- 



gouste). 

 Ehyzaena. 

 Crossarchus. 

 Arctictis = Ictides. 

 Prionodon. 

 Viverra. 

 Paradoxurus. 

 Cynogale. 

 Cryptoprocta. 





Order XIY. QUADEUMANA. 



PRIMATES. POLLICATA. 



- 



The hallux, and in many the pollex, opposable to the digi 

 Teeth uneven and interrupted ; never more than four incisors i 

 each jaw. 



It is only a certain number that are " four-handed ; " in many 

 the anterior extremities have no thumbs, and in Galeopithecus 

 there is no opposable thumb on either extremity. The canine 

 teeth pass beyond the line of the other teeth ; and in the upper 

 jaw there is an interval in which the lower canine is received, as 



