EDENTATA OF THE SANTA CRUZ BEDS. 



Fifth cervical, length of centrum 0045 



Seventh cervical, length of centrum 006 



Thoracic vertebrae one to five, length . . .040 



Lumbars, last three, length 031 



Scapula, antero-posterior diameter glen- 



coid cavity oio 



Sacrum, length 073 



Ilium, length 055 



Pelvis, width at first sacral vertebra 017 



" " at acetabulum 032 



Humerus, length 0555 



" width of proximal end 0105 



" " of distal end 021 



Ulna, length 069 



" " of olecranon 022 



Radius, length 038 



" width of proximal end 008 



" of distal end 009 



Metacarpal II, length oil 



" " width of proximal end . . .004 



" " " of distal end 005 



Metacarpal III, length 019 



" " width of proximal end. .0065 



" " " of distal end 005 5 



Metacarpal IV, length 009 



Metacarpal IV, width of proximal end. .006 



Metacarpal V, length 0045 



" " width of proximal end . . .004 



Digit II, length 05 5 



" III, " 050 



" IV, " 038 



" V, " 024 



Digit II, first phalanx, length 013 



" " second " " 013 



" " third " " 0145 



Digit III, first phalanx, length 005 



" " second " " 008 



" " third " " 021 



Digit IV, first phalanx, length 003 



" " second " " 0075 



" " third " " 019 



Digit V, first phalanx, length 002 



" " second " " 006 



" " third " " 012 



Femur, width of proximal end 018 



" " over third trochanter ... .020 



Metatarsal III, length 023 



" " width of proximal end . .006 

 " " " of distal end 0045 



STENOTATUS HESTERNUS (Ameghino). 



(Plate VII, fig. 3.) 



Dasypus hesternus Amegh. ; Contrib. al Conoc. de los Mam. Fos. de Rep. 



Arg., 1889, p. 922. 

 Prodasypus hestermis Amegh. ; Enum. synopt. d. Mam. Fos. de Pata- 



gonie, 1894, p. 173. 

 Prodasyp^ls extermis Amegh. ; Secundo Censo de la Rep. Arg., T. I, 1898, 



p. 218. 



This species, which is not represented in the Princeton collection and is 

 known only from parts of the carapace, may be distinguished by the 

 scutes of the movable bands ; these have three or four very large and con- 

 spicuous pits in each of the longitudinal grooves ; several smaller pits 

 are placed transversely near the anterior border of the exposed part of 

 the plate. 



