CLUPETD/K. 
133 
Genus ENGRAULIS, Cuvier. 
[ltegne Animal, vol. ii. 1817, p. 174.] 
Head and trunk much laterally compressed, but ventral border 
not a sharp edge. Maxilla very long and slender, with two 
supramaxillary bones ; snout prominent, and gape of mouth very 
wide ; teeth rudimentary or absent. Branehiostegal rays 7 to 14 
m number. Vertebrae from 40 to 50 in number. Dorsal and anal 
fins small, the former nearly median. Scales of moderate or large 
size, none pectinated ; ventral ridge-scales small or absent ; lateral 
line inconspicuous. 
The following three extinct species of this genus are recognised 
on imperfect evidence, but none are represented in the Collection : — 
Engraulis brevipinnis, J. J. Heckel, Sitzungsb. k. Akad. Wiss., 
math.-naturw. Cl. vol. xi. (1854), p. 129. — Lower Mio- 
cene ; Chiavon, Yicentin. [Imperfect fish ; Court Museum, 
Vienna.] 
Engraulis evolans, L. Agassiz, Neuos .Tahrb. 1835, p. 300, and 
Poiss. Foss. vol. v. pt. ii. (1844), p. 121, pi. xxxvii. 
figs. 1, 2. Clupea evolans, H. D. de Blainville, Nouv. 
Diet. d'Hist. Nat. vol. xxvii. (1818), p. 344. Exocetus 
evolans , Silurus catus, and Exocetus exi liens, G. S. Volta, 
Ittiolit. Veronese (1796), pp. cii, clxi, clxvi, pi. xxii. 
fig. 2, pi. xxxix. figs. 2, 5. — Upper Eocene ; Monte Bolca, 
near Verona. [Imperfect fish ; Paris Museum of Natural 
History.] 
Engraulis longipinnis, J. J. Heckel, loc.cit. 1854, p. 12S. — Lower 
Miocene; Chiavon. [[Imperfect fish; Court Museum, 
Vienna.] 
Genus HALECOPSIS, novum. 
[ex Agassiz, Poiss. Foss. vol. v. pt. ii. 1844, p. 139 (name only).] 
An imperfectly known genus. Head and trunk laterally com- 
pressed, more so vontrally than dorsally, hut the ventral border of 
the trunk not quite a sharp edge. Gape of mouth small ; [ teeth 
unknown]. Preoperculum much expanded, with large lower limb. 
Paired fins small, the pelvic pair opposed to the median dorsal ; 
anal fin relatively very small. Scales of moderate or rather large 
size ; none pectinated, but all marked with delicate radiating lines ; 
no ventral ridge-scales ; lateral line inconspicuous. 
