384 bastpodidjE. 



* Nose of'shuU elongate, proditced. Tatoua. 



1. Xenurus imicmctus. (Kabassu.) B.M. 



Tail nakedish, with, some scattered shields ; those of the base of 

 the tail immersed ; becoming more abundant, closer, and more deve- 

 loped at the end, especially on the underside of the tip. 



Dasypus unicinctus,«£«i». S. N. i. p. 62. 



Dasypus gymnurus, lUiger ; P. Max. Beitr. ii. p. 529. 



Dasypus tatouay, Desm. Mamm. p. 369 ; Tschudi, Favm.. Peru, p. 206; 



Gu4rin, Icon. Mamm. t. 34. f. 2. 

 Dasypus duodecim-cinctus, Schreb. Sduffeth. p. 225, t. 75, 76. 

 Tatusia tatouay. Lesson, Mam.ja. 311. 



Dasypus multicincta. Thumb. Vet. Akad. Hand. 1818, p. 68, t. 1. 

 Xenurus unicinctus, GVoy, Cat. Mamm. B. M. p. 120; P. Z. S. 186.3, 



p. 378 ; Tum^, P. Z. S. 1851, p. 215 ; Oerrard, Cat. Banes B. M. 



p. 285. 

 Dasypus xenurus et D. 12-cinctus, Krauss, Arch. f. Nat. 1862, p. 19. 

 Tatusia gymnura, Rapp, Edent. p. 9. 

 Oabassou, Cwv. Oss. Foss r. p. 120, t. 11. f. 7-9 (skull). 

 Kabassou, Buff. K. N. x. p. 218, t. 40. 

 Tatou Tatouay, Aaara. 



Hah. BrazU, S" Catharina ; Surinam (Krauss) ; Guiana ; Peru ; 

 Paraguay. 



In a young specimen not in a good state, in the British Museum, 

 the plates of the dorsal shield are eroded, with a prominent ridge on 

 each side. 



See also : — 1. Dasypus verrucosus, Wagler, Seba, Thesaur. t. 30. 

 f. 4 ; Cuvier, Oss. Foss. v. p. 120 ; Burm. Thier. Bras. p. 287. 



2. D. gymnurus, P. Max. and Wagner. Appear like varieties or 

 synonyma. 



"What is Xenurus nudicaudus, Lund, Turner, P. Z. S. 1851, 

 p. 219, from "TaU shorter and more entirely naked " (Cuvier, Oss. 

 Fobs.) ? 



** Nose of shuU short, compressed. Xenurus. 



2. Xentmis Mspidns. 



SkuU short ; nose short, compressed ; nasal bones short. 



Dasypus hispidus, Burmeister, Thiere Bras. i. p. 287 ; Giehel, Zeit- 



schrifi, 1861, p. 93, t. 2, 34. f. 3, 4 (skulls of old and young). 

 ? Tatu, Seba, Thes. i. t. 30. f. 2, according to Burmeister. 

 Cabassou, Ouv. Oss. Foss. v. p. 120. 

 Xenurus Hspidus, Gray, P. Z. S. 1865, p. 378. 



Hab. Br&zil. 



In our skulls of X. unieinctus the distance from the perforation 

 under the orbit to the end of the intermaxillary is 1| inch ; in Gie- 

 bel's figure it is 1^ inch. 



I have not seen this species. The skuU figured by Giebel is that 

 of a Xenurus, judging from the constriction of the brain over the 

 orbit ; but the face is very much shorter than in the skulls of X 

 unieinctus in the British-Museum collection. 



