140 EDENTATA. 



has a straight row of from three to five pits ; the tail is cylin- 

 drical and covered by small flat scutes ; there are five digits to each 

 foot, of which the first is the most slender, while the third and 

 fourth are the stoutest. 



Eutatus seguini, P. Gervais\ 



This is the type and large st species, and is somewhat superior in 

 size to Priodon giganteus. The skeleton is described and figured by 

 Gervais in the ' Mem. Soc. Geol. France,' ser. 2, vol. ix. pt. 5, 

 pis. xxviii., xxix., and the carapace and feet by Burmeister in the 

 ' Sitz. k. preuss. Ak. Wiss.' 1883, vol. ii. p. 1045, pi. xiii. 



Hah. South America (Argentine Eepublic). 



M. 3628. Numerous scutes of the carapace, belonging to a single 

 individual; from the Pleistocene of La Plata, Argentine Re- 

 public. These specimens agree precisely with the scutes 

 figured by Burmeister, op. cit. figs. 8, 9. 



Bravard Collection. Purchased, 1854. 



M. 3629. Several scutes of another individual, from La Plata. 



Bravard Collection. Purchased, 1854. 



M. 3630. A terminal lateral phalangeal, probably belonging to this 

 species ; from La Plata. 



Bravard Collection. Purchased, 1854. 



Genus TATUSIA, P. Cuvier^ 

 Syn. Praopus, Burmeister 2. 



Teeth ^^^^ ; very small, cylindrical, and, with the exception of 

 the last, preceded by milk-teeth. Carapace with seven movable 

 bands, the sculpture consisting of pits arranged in a Y-shape ; 

 caudal sheath composed of distinct rings resembling those of Glyp- 

 todon. The manus has four perfect digits, of which the third and 

 fourth are the longest ; while there are five in the pes, of which the 

 third is the longest. 



' Coinptos Rendus, vol. Ixv. p. 280 (1867). 



2 Hist. Nat. d. Mamraiferes {\^2'2).— Tatusie. 



'' Syst. Uebersicht Thier Brasillens, p. 295 (1854). 



