42 
CHIM2ER0IDEI. 
P. 2079. Portions of vertebral column and crushed cranium of an 
old individual, probably female; vertebra figured by the 
present writer, loc. cit. pi. ly. fig. 8. Eger ton Coll . 
P. 3184. Portion of skeleton of young female, ventral aspect, de¬ 
scribed and figured by the present writer, loc. cit. passim, 
pi. lv. figs. 3, 4, 7. - C 1 Enniskillen Coll. 
v/47402. Skull of male, dorsal aspect; described and figured by the 
present writer, loc. cit. pp. 532, 534, pi. lv. fig. 2. 
Purchased , 1876. 
41354. Portion of rostral cartilage; described and figured by 
W. Davies, loc. cit. p. 147, pi. iv. fig. 2. Purchased, 1869. 
41353. Portion of cranium of female, seen from below; described 
and figured by W. Davies, loc. cit. p. 148, pi. iv. fig. 4. 
Purchased, 1869. 
43970. Detached dental plate, shown, of the natural size, in PI. III. 
fig. 2. As proved by other specimens, each ramus of the 
jaw was provided with a single plate of this character. 
The efficiency of the grinding-surface is increased by a 
series of parallel longitudinal ridges, which represent the 
tritors and are distinctly worn down towards the outer 
functional border. Purchased , 1872. 
Some of the following specimens may belong to other species:— 
P. 6220. Imperfect rostral spine; described and figured by W. Davies, 
loc. cit. p. 148, pi. iv. fig. 3. Purchased. 
P. 3186. Imperfect rostral spine; described and figured by the 
present writer, loc. cit . p. 531, pi. lv. fig. 5. 
Enniskillen Coll, 
P. 3187. Complete, much-curved rostral spine, exhibiting only 
dorsal aspect. Enniskillen Coll. 
P. 4574. Anterior two thirds of very large rostral spine. 
Enniskillen Coll. 
Ab r i'b'o 1 p.4323. Two fragmentary abraded rostral spines. Enniskillen Coll. 
P. 2080. Broken fragment of vertebral column, showing longitudinal 
section of vertebrae. Egerton Coll. 
P. 3185, P. 4323 a. Fragments of vertebral column and incomplete 
rostral spine. Enniskillen Coll. 
41278. Vertebrae of very small individual. Purchased , 1869. 
