404 PATAGONIAN EXPEDITIONS: PALAEONTOLOGY. 



Metacarpal IV, width of distal end ........ .005 



Metacarpal V, length . . . . . . . . . . .012 



" " width of proximal end ....... .004 



" distal " . .0055 



Pollex, first phalanx, length ......... .009 



" ungual phalanx, length. ........ .0097 



" " " width of hood 005 



Second digit, first phalanx, length ........ .0085 



" " second " " . . ... .0065 



" " ungual " "...'. ... .0098 



" " " width of hood ... ... .005 



Third digit, first phalanx, length ........ .0085 



Fourth " " 0085 



" " second " " 0063 



" " ungual " width of hood . . . . . . . .0036 



Fifth digit, first phalanx, length. ........ .0075 



" " second " " x . .0055 



" " ungual " " 0085 



width of hood .0038 



Astragalus, length . . . . . . . . . . . .0135 



" width of trochlea ......... .0085 



" " neck .0046 



Calcaneum, length ........... .021 



" " of tuber ......... .0097 



Metatarsal I, width of proximal end ........ .005 



Metatarsal II, length . . . . . . . . . . .022 



" width of proximal end. ....... .0032 



" " " " distal "........ .005 



Metatarsal III, length .......... .023 



" " width of proximal end ....... .004 



" " distal " . .005 



Metatarsal IV, length . . . . . . . . . . .025 



" width of proximal end ....... .004 



" " distal " . . . . . . . .005 



AMPHIPROVIVERRA MINUTA Ameghino. 



(Plates LIX, Figs. 3, 30; LX, Figs. 3, 3 .) 



Amphipromveyra minuta Amegh.; Enum. Syn., pp. 134-135, 1894; 



Bol. Acad. Cordoba, p. 390, 1894. 



This species may be distinguished from A. inanzaniana by its smaller 

 size and less robust build. It is represented in the Princeton collection 

 by an incomplete skull and mandible (No. 15,373) associated with a frag- 

 ment of the left ulna, a number of phalanges, the distal end of a meta- 



