Cope.] 104 (Oct. 21, 
The skeleton lacks a few pieces, viz.: the sternum, pelvic bones, and 
perhaps four caudal vertebra. Of the latter, one is a large anterior 
vertebra, two are median, and one between the latter and the distal. 
The whole number thus restored will be, Cerv. 7, D. 14, L. 10, Caud. 20 ; 
total 51. The lengths of the cranium and these elements are : 
Bt. Ins \ 
OPA es ret 9 fs vy ig weeds J 5h oe wow ek ersten 9 
Cattdalyerte bites ies. aa ot unas SAG cay Hea ocd oor 8 10 
MeMalnderk OL VETO La <1. 5.1 serene heres. eT Bl ia 13-6 
OL OPO Hea 2. iy anette tele tie 8a Gs bat any cuans cee 31 4 
The cranium is not very different in some respects from that of the 
M. longimana of the North. The supraoccipital bone has a deep but 
open median groove from the foramen magnum to near the hori- 
zontal superior surface, where it is wanting. On each side of it there 
is a considerable protuberance near the middle of the height of that bone. 
sets 
Fig. 24, 
The orbital plates of the frontal are plane, with straight anterior and 
posterior margins. ‘The posterior extremities of the premaxillaries are 
laminar; their middle portions are separated by a considerable vacuity. 
The maxillaries are not slender, and are plane; they present several 
large foramina near their middle. The nasal bones present marked 
characters. Their median face of common contact extends throughout 
much of their length, and the posterior divergent portion is very short 
(see fig. 22), and serrate for suture. A.beveled portion of the external 
face (fig. 22a) is concealed by the maxillaries ; the remaining portion is 
narrow. ‘The median projection of the bones is less than the lateral, and 
is carried on a keel above the level of the lateral portion of the bone, as 
