QLTPTODONTTD^. 121 



18652m. A patella. 



18620. An imperfect patella. 



Some or all of the following may be specifically identical with the 

 preceding specimens, or they may belong to the next species. 



18944 C. Portion of the dorsal region of the carapace. The scutes 

 are considerably smaller and thinner than those of G. 

 reticuJatits, but thicker than those of Hoplophorus ornatus. 

 The central disk of each scute is much larger than the disks 

 of the peripheral row, and the latter is frequently double. 

 The surface of the scutes is moderately rugose. This 

 and the following specimens are intermediate in structure 

 between the carapace of the preceding species and that 

 of Hoplophorus. 



18944 d. Fragment of the anterior (?) part of a carapace. The scutes 

 have a double row of peripheral disks, but are smaller 

 than in the last specimen. 



18944 e. Small fragments and detached scutes of carapaces, agreeing 

 in characters with the preceding specimens. The thick- 

 ness of these specimens averages 0,020. 



Glyptodon euphractus (Lund '). 

 Syn. Hoplophorus euphractus Lund 2 . 



This species was referred to the present genus by Reinhardt in 

 the ' Vid. Medd. Nat. Foren. Kjobenhavn,' 1875, p. 165 et seq. ; it is 

 of considerably smaller size than the preceding, but somewhat 

 larger than Hoplophorus ornatus. Its characters are still very im- 

 perfectly known. 



Hab. South America (Brazil). 



18645. A right astragalus, agreeing in size with the corresponding 

 bone of the foot figured by Lund in the ' K. Danske Vid. 

 Selsk. Skr.' vol. xii. pi. lii., under the name of Hoplophorus 

 euphractus ; from a cave in Miuas Geraes, Brazil. 



Claussen Collection. Purchased^ 1845. 



18941. The left half of the conjoint centra and part of the neural 

 arches of the axis and following cervical vertebra?, pro- 



"' Ann. Sci. Nat, ser. 2, vol. xi. p. 218 (1839). Hoplophorus. The name also 

 occurs in the Overs. K. Danske Vid. Selsk. Forhandl. 1838, p. 11. 

 a Loc. cit. 



