GLrPTODONTIDJE. 129 



Hi. 481. The carapace, imperfect dorsally ; from the Pleistocene of 

 Euenos Ayres, Argentine Republic. The missing portion 

 of the carapace, together with the caudal sheath, has been 

 restored in plaster from the figures given by Burmeister 

 in the ' An. Mus. Buenos Aires,' vol. ii. pi. xvii. 



Purchased, 1888» 



37558. Part of the terminal tube of the caudal sheath (woodcut, 

 {Fig.) fig. 22) ; from Buenos Ayres. The four larger lateral 



Pig. 22. 



Hoplophorus ornatus. — Ventral aspect of the imperfect extremity of the terminal 

 tube of the caudal sheath ; from the Pleistocene of Buenos Ayres. f . 



disks diminish gradually in size anteriorly, and the second 

 and third are saddle-shaped, with the axis of the con- 

 cavity directed transversely ; the disks on the dorsal 

 surface are oval and subequal. 



Bravard Collection. Purchased, 1S54, 



37565. The imperfect occipital region of the cranium; from Buenos 

 Ayres. This and the two following specimens accord 

 very closely with the cranium figured by Burmeister, op. 

 cit. j>ls. xviii. & xix. The characteristic pitting of the 

 parietal region is well known. 



Bravard Collection. Purchased, 1854, 



37556. The greater portion of the right half of the cranium, wanting 



the palate ; from Buenos Ayres. 



Bravard Collection. Purchased, l^bi, 



37557. Pragment of the right maxillary region of the cranium ; 



from Buenos Ayres. The eversion of the anterior border 

 of the orbit and the deflection of the fronto-nasal region 

 is well shown. Bravard Collection. Purchased, 185-J. 



PART V. K 



