NOMARTHRA. 751 



3. Myrmecophagidoe the Ant-eaters, hairy animals, without even 



traces of teeth, with long thread-like protrusible tongue, viscid 

 with the secretion of greatly enlarged submaxillary glands. 

 One form, Myrmecophaga jubata y is terrestrial ; the others, 

 belonging to the genera Tamandua and Cycloturus^ are 

 arboreal. All feed on insects. All are Neotropical. The 

 skull is long ; the third finger is greatly developed, the others 

 are small ; the pes has four or five almost equal clawed toes ; 

 the clavicles are rudimentary ; the tail is long and sometimes 

 prehensile. The brain is well convoluted. The uterus is 

 simple : the placenta is dome-like or discoidal. 



4. Dasypodidse the Armadillos, all S. American except Tatusia 



novemcincta, which extends as far north as Texas. They are 

 nocturnal, omnivorous animals, able to run and burrow rapidly. 

 They are unique among living Mammals in having a dermal 

 armature of bony scutes united into shields and rings, and 

 covered by horny epidermis. The teeth are numerous, simple, 

 and of persistent growth. Clavicles are well developed. The 

 digits have strong claws or nails. The brain has large olfactory 

 lobes ; the cerebral hemispheres have few convolutions. 

 The tongue is long and protrusible, and the submaxillary 

 glands are large. The stomach is simple. The uterus is 

 simple; the placenta is discoidal and deciduate, except in 

 Dasypus. 



Examples. Dasypus, ChlamydopJwrus^ Tattisia. 



5. Glyptodontidse extinct Pleistocene types, mostly S. American, 



but represented in Mexico and Texas. . The body was often 

 huge, and was covered by a solid carapace of great strength. 



Order NOMARTHRA 



1. Manidse the Ethiopian and Oriental Pangolins, covered dorsally 



with overlapping horny scales. They are terrestrial, burrow- 

 ing animals, but sometimes climb trees. They usually feed 

 on termites. Teeth are rudimentary, the tongue is long 

 and protrusible. The uterus is bicornuate ; the placenta 

 diffuse and indeciduate. There is one extant genus, 

 Mams. 



2. Orycteropodidse the Ethiopian Aard-varks, represented by two 



species viOrycteropus, ranging from S. Africa to Egypt. They 

 are shy, nocturnal animals, living in burrows, feeding on 

 termites. There are numerous complex teeth, differing in 

 structure from those of any other known Mammal. The 

 skin bears scanty bristles. The mouth is tubular, and the 

 tongue is narrow and protrusible. The digits bear nails 

 suited for digging. The uterus is bicornuate, the placenta 

 broadly zonary. The relation to the other Edentates, or, 

 indeed, to other Mammals, is uncertain. 



