268 
ACTI^OPTERyGII. 
elevated in the coronoid region, and its articulation is 
almost as far back as the occiput. There seem to be 
remains of cheek-plates. The vertebral column of a 
swalloTved fish can be distinguished in the abdominal 
region. The fins are too imperfect to admit of counting 
their ravs. Leivis Coll. 
P. 4737. Another fine specimen wanting end of snout, but displaying 
paired fins. Lewis Coll. 
49526. Imperfect specimen exhibiting the head and the greater 
part of the trunk, noticed by Davis, loc.cit. p. 615. Some 
of the anterior neural spines are laminar expansions, 
obliquely truncated above, tapering to a point below. 
The imperfect dorsal fin has 12 supports. The course of 
the lateral line is indicated by a thickening of the scales. 
Lewis Coll. 
49519. A much crushed and distorted imperfect specimen. 
Lewis Coll. 
48151. Imperfect head and distorted abdominal region, with 
remains of the very large teeth at the base of the pre- 
maxilla. Lewis Coll. 
Rhinellus damoni, Davis. 
1887. Rhinellus damoni, J. W. Davis, Trans. Roy. Dublin Soc. [2] 
vol. iii. p. 617, pi. xxxvii. fig. 4. 
1887. Rhinellus robustus, J. W. Davis, ibid. p. 608, pi. xxxyii. fig. 5. 
[Distorted fish ; Edinburgh Museum.] 
Type. Xearly complete fish ; British Museum. 
A species as large as the type, but with shorter vertebrae and 
comparatively stout trunk. Length of head with opercular 
apparatus considerably exceeding the length of the trunk from the 
pectoral arch to the base of the caudal fin ; maximum depth of 
trunk contained about three times in the same measurement. Eins 
as in the type species; scales apparently thicker than in the latter, 
and those of the lateral line not conspicuous. 
Form. Loc. Upper Cretaceous: Sahel Alma, Mt. Lebanon. 
P. 4850. Type specimen described and figured loc. cit. Only 12 
supports can be distinctly counted in the dorsal fin, 14 in 
the anal fin. The tail is deepened by crushing. 
Lewis Coll. 
49524. Slab exhibiting large specimen in association with an 
