382 
ACTINOPTERYGII. 
14 rays. Lateral scutes in abdominal region marked with fine 
longitudinal strise. 
Form. ^ Log. Upper Eocene: Monte Bolca, near Yerona. 
Not represented in the Collection. 
Genus SIPHONOSTOMA, Kaup. 
[Catal. Lophobr. Eish. Brit. Mus. ISSfi, p. 48.] 
Trunk much elongated, not dilated. Clavicular arch not rigidly 
fixed at lower end. Pectoral and caudal fins well-developed; 
dorsal fin not much extended; anal fin minute. Dermal armour 
complete; dorsal edges of tail not continuous with dorsal edges 
of trunk, but passing on each side into ridge of lateral line. 
Existing species occur on the European coasts. 
Siphonostoma albyi^ Sauvage^ 
1870. Syngnathus alhyi, H. E. Sauvage, Ann. Sci. Nat. [5] vol. xiv. art, 
no. 7. p. 3. 
1873. Siphonostoma alhyi, H. E. Sauvage, Ann. Sci. Geol. vol. iv. art. 
no. 1. p. 81, fig. 42. 
1896. Siphonostoma alhyi, I. Bonomi, Hi vista Ital. Paleont. vol. ii. 
p. 204. 
Type. Imperfect fish. 
A species attaining a length of about 0*25. Length of head with 
opercular apparatus about one fifth of the total length of the fish. 
Dorsal fin with about 38 rays ; caudal fin with 12 rays. Dermal 
rings apparently 18 or 19 in the abdominal, 34 in the caudal 
region; the seutes with a smooth longitudinal ridge and marked 
with regular vertical lines of large tubercles. {Sauvage.) 
The generic determination of this fish is uncertain. 
Form. Log. Upper Miocene: Licata, Sicily; Mondaino, Pro¬ 
vince of Eorli, Italy. ■ 
P. 1977. Very imperfect specimen; Licata. Egerton Coll. 
Siphonostoma castellii is an undefined name given to a fish from 
the Upper Miocene of Gabbro, Tuscany, by G. Capellini, Mem. K. 
Accad. Lincei [3] vol. ii. disp. i. (1878), p. 285. 
Genus SYNGNATHUS (Artedi), Linnseus. 
[Syst. Nat. ed. 10, 1758, p. 336.] 
Essentially similar to Siphonostoma, but clavicular arch rigidly 
fixed at lower end. 
