386 



TOLyPEUTIDJE. 



1. Cheloniscus. Skull ivith a bo7ii/ prominence above each orbit for at- 

 taching the frontal shield. Toes 5.5,- tail conical, base thick, end 

 broad, Jlat, truncated, underside Jlattish ; frontal shield broad and 

 arched above. 



Tolypeutes, § Cheloniscus, Gray, P. Z. S. 1865, p. 379. 



1. Tolypeutes tricinctus. (Apar.) B.M. 



Frontal shield flat, broad ; tlie hinder margin not produced ahove 

 the head ; regularly arched. Nape with three bony plates in front 

 of the scapular shield. Front claws five ; the inner and outer ones 

 small ; the middle one moderately large. 



Basypus tricinctus, Linn. S. N. i. p. 53 ; Schreb. Sdugeth. p. 215, 



t. 71. 

 Dasypus apar, Desm. Mamm. p. 3G7, t. 26. f. 3. 

 Tatusia apar, Lesson, Mam. p. 310. 

 Tatusia tricincta. Gray, Cat. Mamm. B. M. p. 181 ; Gerrard, Cat. 



Bones B. M. p. 286. 

 Tolypeutes tricinctus. Turner, P. Z. S. 1851, p. 215 ; Grat/, P. Z. S. 



1865, p. 379. _ 

 Dasj^us (Tatusia) tricinctus, Rap^), Edent. p. 9. 

 Apar, Buffon, H. N. x. p. 206. 



Hah. Bolivia; Bnenos Ayres. 



Fig. 46. 



Skull of Toli/peiites tricinctus. 



2. Tolypeutes. SkuU without any bony jnwninence above each orbit. 

 Toes 4 . 5. Tail, base broadly expanded, end conical, beneath convex. 

 Frontal shield narrow, flat. 



2. Tolypeutes conurus. (Mataco.) B.M. 



Frontal shield flat, narrow, produced behind the head into a kind 



