362 BRADTPODID^. 



Fam. 5. Clamtdophobid^. The dorsal disk divided behind into 

 a dorsal and a pelvic shield. The pelvic shield agglutinated 

 to the pelvis. Feet strong ; toes united ; claws large. 



Section 3. Body covered ivith hairs or spines, not with scales or 

 armour. 

 Fam. 6. OiiTCTEROPODiD^. Body covered with bristles. Head 

 conical ; mouth small. Teeth numerous. 



Fam. 7. Mtrmecophagid^. Body covered with hair. Head 

 conical ; mouth small. Teeth none. 



Suborder 3. Monotremata. Pelvis with marsupial bones. Tongue 

 elongate. Face like a beak. Insectivorous. 



Fam. 8. Oenithoehynchid^. Body covered with hair or spines. 

 Mouth in the form of a flat or cylindrical beak. Hind feet 

 of males spurred. 



Suborder I. TARDIGRADA. 



Face short. Limbs elongate. Pelvis simple. Herbivorous. 



Tardigrada, Illiger. 

 Bruta, Dahlbom. 



Fam. 1. BRADYPODID^. 



Grinders more or less cylindrical ; canines distinct, acute. Face 

 round ; neck short. Fore[^limbs very long. Tail very short or want- 

 ing. Body covered with dry crisp hair. Teats pectoral. Stomach 

 2- or 3-lobed. Tongue largely extensile (see Ball, P. Z. S. 1844, 

 p. 93 ; Turner, P. Z. S. 1851, p. 207). Malar bone with an addi- 

 tional inferior process. 



Osteology.— ^ee Gray, P. Z. S. 1849 ; Turner, P. Z. S. 1851, p. 206. 

 BradvpidjB, Gray, Annals of Philos. 1825 ; Cat. Mamm. B. M. p. 192 ; 



P.'Z.S. 1849, p. 65. 

 Bradvpodidfe, Bonajy. Prod. Mastoz. ; Turner, P. Z. S. 1851, p. 206. 



Bradvpodina, Bonap. lu n , , (\ , , r-i- . 



Bradypoda, Baird, N. A. Mamm. p. 621. 



Synopsis of the Genera. 



1. Chol(epus. Hands two-clawed ; feet three-clawed. Front grin- 



der large, like a canine. 



2. Bradtpus. Hands and feet three-clawed. Front grinder small. 



Pterygoid swoUen, hollow, vesicular. 



3. Arctopithecus. Hands and feet three-clawed. Front grinder 



small. Pterygoid compressed, crest-like, solid. 



