SEMIONOTIDiE. 
97 
P. 5936. Imperfect large head and trunk, with portions of the 
dorsal and pelvic fins. The tuberculated cranial roof is 
exposed, and the ventral portion of the abdominal squa- 
mation is especially well displayed. The scales are not 
serrated, hut the postero-inferior angle is acuminate. 
Purchased , 1889. 
P. 6370. Imperfect fish about 03 in length, exhibiting the tuber¬ 
cular ornament on the head-bones and operculum. 
Beckles Coll. 
36080-81. Two specimens, 0*24 and 0*29 in length respectively. 
The smaller fish is shown partly from the lateral, partly 
from the dorsal aspect, and displays some of the head- 
bones and the squamation: a few of the principal flank- 
scales are observed to he coarsely, hut feebly crenulated. 
The trunk of the larger fish is shown chiefly as an im¬ 
pression, though the greater part of the dorsal fin is 
preserved ; while in the head the left parietal and frontal, 
circumorbitals, and other hones are exposed from the inner 
aspect. Cunnington Coll. 
45903. Imperfect small trunk, with remains of the head, displaying 
some of the ribs and the stout neural spines. 
Purchased , 1874. 
P. 4220. Large trunk, with remains of the head and part of the 
dorsal and caudal fins. A large portion of the squamation 
is well preserved, hut none of the flank-scales exhibit 
denticulations. The dorsal fin-fulcra are unusually at¬ 
tenuated. Enniskillen Coll. 
P. 4440. Imperfect small trunk displaying the fulcra of the dorsal 
and anal fins, and the long, curved ribs in the abdominal 
region. Enniskillen Coll. 
P. 2006. Small trunk, about 0‘23 in length, with portions of all the 
fins, especially displaying the fulcra. All the principal 
flank-scales of the abdominal region are coarsely though 
feebly serrated; and this specimen forms the basis of the 
restoration of the trunk in fig. 22, p. 95. Egerton Coll. 
P. 2006 a. Head, abdominal region, and base of the tail of a 
similar fish, lateral aspect, with portions of the dorsal and 
paired fins. In the mandible the posterior teeth seem to 
be relatively small and arranged in more than one series: 
and the margin of the upper jaw is shown to be formed by 
PAKT III. H 
