MAMMALIA 



375 



jaw. The sloths are very peculiar in that they have an excessive 

 number of dorsal vertebrae, as many as 23 being present in some 

 species. The cervical vertebrse are also quite an exception for mam- 



FiG. 193. — ^Edentata, Pholidota, and Tubiilidentata. A, Great Anteater, 

 Myrmecophaga jubata; B, Two-toed Sloth, Cholcepus didactyhis; C, Texas Nine- 

 banded Armadillo, Dasypus novemcinctus texanus; D, The Aard Vark, Orycteropits 

 caperms; E, Short-tailed Pangolin, Manis temmincki. (All redrawn. A, D, E, 

 after Lydekker; B, after Beddard; C, after Newman.) 



