NO. 5 MAMMALS FROM DOMINICAN REPUBLIC MILLER II 



in a kitchenmidden confirms my belief that this large rodent is 

 Oviedo's " quemi." 



CAVIA sp. 



Anadel. — Mandibles, 2 (opposites but not from one individual). 



I cannot distinguish these jaws from specimens of Cavia pored! us. 

 They present every appearance of having been buried as long as the 

 remains of Brotomys voratus and Plagiodontia cedium with which they 

 were associated. 



ACRATOCNUS COMES Miller ? 

 Plate 2, fig. 2 



Boca del Infienio. — Penultimate phalangeal bone, probably of sec- 

 ond or fourth pedal digit, i. 



This bone was found in the kitchenmidden at the south entrance 

 to the outermost of the two caves. It was unearthed at a depth of 

 not more than four feet, near the femur of Quemisia, with which it 

 agrees in its perfect and seemingly unmodified condition of preserva- 

 tion. Both bones, in fact, seem to be, so far as it is possible to de- 

 termine from superficial inspection, in essentially the same state as 

 bones of the living species of Plagiodontia with which they were 

 associated. There appears to be no longer the slightest reason to 

 doubt that a ground sloth was a member of the recently man-exter- 

 minated fauna of Hispaniola.^ 



This bone (pi. 2, fig. 2) is similar in general form to the second 

 right pedal phalanx of the Patagonian Ha pal ops elongatus as figured 

 by Scott (Rep. Princeton Univ. Exped. Patagonia, Vol. 5, Palaeont, 2, 

 pi. 41, fig. 2), but it is about 2 mm. longer and its proximal extremity 

 appears to be deeper. It also resembles in a general way an isolated 

 phalangeal bone of Acratoenus from Porto Rico figured by Anthony 

 (Mem. Amer. Mus. Nat. Hist., n. s. Vol. 2, Pt. 2, fig. 53 f, p. 425, 

 1918). From an imperfect specimen that may represent the cor- 

 responding bone in Aeratocnus comes it differs rather noticeably in the 

 less diameter of the distal articular region (compare pi. 2, figs, i and 

 2) and the more abrupt deepening toward the proximal end. 



TRICHECHUS MANATUS Linnaeus 



Rio San Juan. — Fragments of palate, 2 (large and small) ; im- 

 perfect ribs, 2. 



^ I have already discussed the evidence to this effect furnished by the conditions 

 existing in the caves near St. Michel, Haiti (Smithsonian Misc. Coll., Vol. 81, 

 No. 9, pp. 25-26, March 30, 1929). 



