OCR Text |
Show 1891.] DOLICHOTIS PATAGONICA. 237 traced them for the distance of one foot from the sphincter, do not know how much further they extended. These two ridges, Fig. 1. Palate of Bolichotis patagonica. a, processes upon palate representing palatal ridges. as shown in the accompanying drawing (woodcut, fig. 2), are at first some distance apart (about f of an inch) ; they become gradually closer until they are only separated by a little less than half an inch ; they then run parallel. These ridges are clearly very like those of Aulacodus swindernianus figured and described by Garrod'; they are 1 " On the Visceral Anatomy of the Ground Rat (Aulacodus swindernianusY P.Z.S. 1873, p. 786. |