64 
ACTINOPTERTGII. 
1844, Cliipea mncropoma, L. Agassiz, Poiss. Foss, vol. v, pt, i, p, 14, 
pt, ii, p. 115, pi, xxxvii b. figs, 8, 4, 
1876, Cliipea macropoma, F, Bassani, Atti Soc, Veneto-Trent, Sci, Nat, 
vol, iii, p. 187. 
1897. Clupea macropoma, F. Bassani, Palasont. Italica, vol. iii. p. 86, 
pi. viii. fig. 3. 
Type. Imperfect fish ; Paris Museum of Natural History. 
The type species, attaining a length of about 0*16. Length of 
head with opercular apparatus slightly exceeding the maximum 
depth of the trunk, and contained about three times in the total 
length to the base of the caudal fin. Dorsal fin with about 13 rays, 
almost entirely within the anterior half of the hack; pelvic fins 
opposed to its hinder half, arising midway between the pectoral 
and anal fins ; anal fin with about 11 relatively small rays. 
Form. Loc. Upper Eocene : Monte Bolca, near Verona. 
P. 1867, P. 3827. Two typical specimens somewhat fractured, the 
second in counterpart. Ecferton Enniskillen Colls. 
36201, 37226. Two imperfect larger specimens. 
Purchased, 1861, 1863. 
28397. Smaller distorted specimen. Mantell Coll. 
P. 1868 h, P. 3829h. Immature fish, in counterpart, shown of the 
natural size in PL VI. fig. 3. The snout is imperfect, 
but there are traces of the large conical teeth. The 
squamation is scattered by crushing, thus distorting the 
true outline of the body. Egerton ^ Enniskillen Colls. 
Genus CHANOS, LacepMe. 
[Hist. Nat. Poiss. vol. v. 1803, p. 395.] 
Syn. Lutodeira, E. Biippell, Neue Wirhelth. Abyssinien, 1835, p. 18. 
Trunk somewhat laterally compressed, abdomen rounded or 
flattened. Snout obtuse and mouth terminal; teeth absent. Bran- 
chiostegal rays about 4 in number. Vertebrae in the type species 
19 in the abdominal, 26 in the caudal region. Pelvic fins opposed 
to the dorsal, which is short-based but much larger than the anal; 
caudal fin deeply forked. An enlarged lateral scale or scaly lamella 
extending considerably over the base of each lobe of the tail. 
Scales not pectinated. 
For notes on the skeleton see J. Hyrtl, Denkschr. k. Akad. Miss., 
math.-naturw. Cl. vol. xxi. (1863), pp. 2-4. 
