Davis—On the Fossil Fishes of the Chail o, Mount Lebanon. 523 
on the internal surface, but are oval, with sharp posterior and anterior edges. 
An excrescence extends in a ring round the base of the tooth, just above the 
alveolar surface ; and from this the teeth are striated upwards nearly to the apex, 
which is a sharp point. 
This species may be readily distinguished from Enchodus faujasii, Agass., by 
the great size and robustness of the mandible and the teeth, and by the round 
form and blunt apex of the latter. Enchodus halocyon, Ag., in addition to the 
flattened character of the teeth already named, does not exhibit the recurved 
character which has furnished the specific name. 
The example of Isodus (Enchodus) suleatus, Heckel, is described as having 
erect, long, sharp teeth, with the outer surfaces convex and both edges slightly 
concave. These characters do not agree with those of the species described ; 
and though it may eventually be found that Heckel’s and this species are 
more nearly related than at present appears, they must now be considered as 
distinct. 
Formation and Locality.—Soft chalk: Sahel Alma, Mount Lebanon. 
Ex coll.—R. Damon, Esq., Weymouth. 
Enchodus (Isodus) sulcatus, HEcKEL. 
Heckel, J. J., 1843. ‘‘Abbildungen und Beschreibungen der Fische Syriens,” 
p. 241, pl. xxm1., fig. 4. 
Formation and Locality.—Soft Chalk: Sahel Alma, Lebanon. 
Acanthopterygu cotto-scombriformes. GUNTHER. 
Spines developed in one of the fins at least. Dorsal fins either continuous or 
close together; the spinous dorsal, if present, always short; sometimes modified 
into tentacles or into a suctorial disk; soft dorsal always long, if the spinous is 
absent; anal similarly developed as the soft dorsal, and both generally much 
longer than the spinous, sometimes terminating in finlets. Ventrals, thoracic or 
jugular, if present, never modified into an adhesive apparatus. No prominent 
anal papilla. (Giinther.) 
Family. CARANGIDZA. 
Genus. Platax. CuviEer. 
‘‘ Body much compressed and elevated ; snout very short. One dorsal, with 
the spinous portion almost entirely hidden, and formed by from three to seven 
