64 
AOTINOPTERYeir. 
1844. Clupea macropoma, L. Agassi/, Poiss. Foss. vol. v. pt. i- P' 1 ’ 
pt. ii. p. 116, pi. xxxvii b. figs. 8, 4. 
1870. Clupea macropoma , F. Bassani, Atti Soc. Veneto-Trent. Sci. l ya ■ 
vol. iii. p. 187. 
1897. Clupea macropoma, F. Bassani, Palaeont. Italica, vol. iii- l 1, 
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 tota 
length to the base of the caudal fin. Dorsal fin with about 1 3 ra) 
almost entirely within the anterior half of the back ; pelvic fin- 
opposed to its hinder half, arising midway between the pectora 
and anal fins ; anal fin with about 11 relatively small rays. 
Form. 4 - Loc. Upper Eocene : Monte Bolca, near Verona. 
P. 1867, P. 3827. Two typical specimens somewhat fractured, tin 
second in counterpart. Egerton $ Enniskillen Col s. 
36201, 37226. Two imperfect larger specimens. 
Purchased, 1861, 186 
28397. Smaller distorted specimen. Mantell Coll- 
P. 1868 b, P. 3829 b. Immature fish, in counterpart, shown of th 
natural size in PI. VI. fig. 3. The snout is imperfec , 
but there arc traces of the large conical teeth. ^ j ,e 
squamation is scattered by crushing, thus distorting^ ’ ,e 
true outline of the body. Egerton 4‘ Enniskillen (■ 0 1 s ' 
Genus CHANOS, Lacepede. 
[Hist. Nat. Poiss. vol. v. 1803, p. 395.] 
Syn. Lutodeira, E. Ruppell, Neue Wirbelth. Abyssinien, 1835, p- '* ~ 
Trunk somewhat laterally compressed, abdomen rounded 01 
flattened. Snout obtuse and mouth terminal ; teeth absent. P ran ' 
chiostegal rays about 4 in number. Vertebra; in the type species 
19 in the abdominal, 26 in the caudal region. Pelvic fins opp° s 
to the dorsal, which is short-based but much larger than the anal : 
caudal fin deeply forked. An enlarged lateral scale or scaly lame a 
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. "ffiss- 
math.-naturw. Cl. vol. xxi. (1863), pp. 2-4. 
