SEMI0N0TID2E. 
135 
T. Z-94-0S 
Cat i). Eemains of a fish 0*37 in length, showing only 
fragments of the fins. Mantell Coll. 
P. 1575. Imperfectly preserved fish about 0-375 in length, with 
portions of all the fins. Egerton Coll . 
18988. Head and much fractured trunk of a fish about 0-36 in 
length. The tuberculations are fused into rugae. 
Purchased , 1845. 
P. 3567. Type specimen of the so-called Tetragonolepis speciosus , 
described and figured by Agassiz. Enniskillen Coll. 
48013. Somewhat smaller but better preserved specimen, showing 
broad bicuspid teeth in both jaws, and with the tubercular 
ornament of the head, opercular bones, and dorsal ridge- 
scales rarely passing into rugae. The characters of the 
squamation are well exhibited. Purchased, 1877. 
P. 3554 a. Imperfect trunk and hinder portion of head of a fish 
about 0-30 in length. Enniskillen Coll. 
P. 4399. Imperfect crushed and abraded specimen about 0-32 in 
length, exhibiting a remarkable smoothness of part of the 
opercular bones. Enniskillen Coll. 
P. 3550. Pish 0-32 in iength, with imperfect fins and abraded 
squamation, showing both bicuspid and unicuspid teeth. 
The fin-fulcra are well exhibited. Enniskillen Coll. 
35790. Specimen of the same size with caudal fin and well-preserved 
squamation. The head is much crushed, and there is 
scarcely any tendency towards a fusion of the superficial 
tuberculations. Purchased, 1860. 
39846. Specimen slightly smaller than the last, wanting the greater 
part of the median fins. The superficial tuberculations 
are rarely fused into short rugae. Purchased , 1866. 
P. 4230, P. 4398. Two similar but more imperfectly preserved 
specimens. Enniskillen Coll. 
P. 3539. Imperfect head of an equally large fish, showing jaws and 
dentition. Enniskillen Coll. 
P. 3538. Another head, with extremely coarsely marked opercular 
apparatus. The ethmoidal plate and premaxillae are figured 
in Proc. Zool. Soc. 1893, pi. 1. fig. 4. Enniskillen Coll. 
