298 
ACTINOPTERYGII. 
35055. A much-fractured small fish. Purchased, 1860. 
P. 871. Greater part of fish, about 0*15 in length. Egerton Coll. 
P. 3628. Imperfect head and opercular apparatus with part of the 
anterior squamation, shown of the natural size in PI. Y. 
fig. 3. The operculum (op.) exhibits the form charac¬ 
teristic of the species; the cranial roof and portions of 
the jaws are also well shown. Enniskillen Coll. 
P. 864. Head and anterior portion of a typical fish. Egerton Coll. 
P. 6062. Small head and anterior portion of trunk. 
Presented by F. Harford , Esq., 1889. 
P. 868, P. 3627, P. 3634 k. Three small specimens exhibiting the 
head in an imperfect state. Egerton &f Enniskillen Colls. 
P. 3631. Imperfect head with relatively large teeth, and other 
fragmentary remains. Enniskillen Coil. 
P. 36341. Remains of head, opercular apparatus, postclavicular 
scales, and pectoral fin, perhaps of an unusually large 
individual of this species. Enniskillen Coll. 
P. 3638 b. Fish with imperfect head, wanting jaws and caudal fin, 
doubtfully ascribed to this species. The scales are 
unusually finely ornamented. Enniskillen Coil. 
Uugnathus serratus (Davis). 
1884. Lissolepis serratus, J. W. Davis, Ann. Mag. Nat. Hist. [5] 
vol. xiii. p. 449, pi. xvi. 
1890. Eugnathus serratus, Woodward & Sherborn, Catal. Brit. Foss. 
Vertebrata, p. 79. 
Type. Fish wanting dorsal fin; James W. Davis Collection, 
Chevinedge, Halifax. 
A species of moderate size, apparently differing only from 
Eugnathus minor in its relatively smaller, more numerous mandi¬ 
bular teeth, in the comparatively deeper abdominal region and 
more slender caudal pedicle. 
This is the type species of the so-called Lissolepis. 
Form. <$f Loc. Lower Lias : Dorsetshire. 
P. 2028. A somewhat elongated specimen, crushed and fractured, 
and probably of this species; Lyme Regis. The specimen 
bears the MS. name, Eugnathus fusiformis, in Egerton’s 
handwriting. Egerton Coil. 
