BERTCIM). 
401 
channel is tuberculated. The angular ( cig .) has a similar 
conformation, hut its tuberculated ridge is widened into an 
extensive radiately-ornamented area. The preoperculum 
(p.op.) also exhibits a deep groove for the slime-canal, 
and is not much expanded at the angle. The other 
opercular bones display their characteristic rugose orna- 
ment. The deep and narrow operculum (op.) is produced 
into two short and broad spines at its hinder margin, the 
upper being connected by a strong ridge with the point of 
suspension. The suboperculum (a. op.) is relatively small, 
with a large anterior ascending process. The inter- 
operculum ( i.op .) is of remarkable extent. The upper 
expanded portion of the clavicle is more finely and closely 
ornamented than the opercular apparatus. The large and 
deep anterior scales are broken and displaced. 
Presented by P. E. Coombe, Esq., 1888. 
5421-23. Four fragments ; Lewes. 
Presented by P. E. Coombe, Esq., 1888. 
^189. Head and anterior scales; Southover, Lewes. 
Presented by J. S. Valentine, Esq., 1894. 
6462-64. Four fragmentary small specimens, two displaying a 
small and delicate supraoccipital crest ; probably from 
Sussex. BccJclcs Coll . 
49868. Portion of large trunk ; Lewes. Capron Coll. 
49865-67, 49872 49888 Five fragmentary small specimens; Upper 
Chalk, near Guildford. Ca P ron ColL 
^ ' 288-9. Three imperfect fishes, two displaying a considerable part 
of the dorsal fin ; probably from Kent. 
Presented by the Earl of Dude, 1881. 
P. 9441. Fine distorted specimen ; Rochester. Purchased. 
23017. Remains of small head and trunk ; Dover. 
Purchased, 1848. 
41104-05. Two imperfect heads, the first associated with some 
flank-scales ; Lower Chalk, Hailing, Kent. 
Purchased, 1868. 
85712. Fine specimen, displaying the greater part of the paired 
and dorsal fins; Rochester. The pectoral fin consists 
part rv. 2 d 
