ALBTJLID J2. 
65 
This genus is not represented in the Collection, hut the following 
extinct species have been referred to it : — 
Chanos brevis, It. Kner & F. Steindachner, Denkschr. k. Akad. 
Wiss., math.-naturw. Cl. vol. xxi. (1863), p. 19, pi. i. ; 
F. Bassani, Att.i R. Accad. Sci. Napoli [2] vol. iii. (1889), 
no. 6, p. 45. Albula brevis, J. J. Heckel, Sitzungsb. k. 
Akad. Wiss., math.-naturw. Cl. vol. xi. (1854), p. 132. — 
Lower Miocene; Chiavon, Yicentin. [Nearly complete 
fish ; Court Museum, Vienna.] 
Chanos forcipatus, Kner & Steindachner, loc. cit. 1863, p. 21, 
pi. iii. Megalops forcipatus, J. J. Ilockel, loc. cit. 1854, 
p. 132. — Upper Eocene; Monte Postale, N. Italy. [Im- 
perfect fish ; Court Museum, Vienna.] 
Chanos zignii, Kner & Steindachner, loc. cit. 1863, p. 20, pi. ii. ; 
F. Bassani, loc. cit. 1889, p. 44. Albula de zignii, 
J. J. Heckel, loc. cit. 1854, p. 129. Albida lata, J. J. 
Heckel, ibid. p. 131. — Lower Miocene ; Chiavon, Vicentin. 
[Tail ; Court Museum, Vienna.] 
Genus PROCHANOS, Bassaui. 
[Verhandl. k.-k. geol. Reiclisanst. 1879, p. 165.] 
A genus closely resembling Chanos and not yet precisely definable ; 
differing from Chanos in the absence of the enlarged lateral scale at 
the base of each lobe of the tail. 
Prochanos rectifrons, Bassani. 
1879. Prochanos rectifrons, F. Bassani, Verhandl. k.-k. geo). Reichsanst. 
p. 165. 
1882. Prochanos rectifrons, F. Bassani, Denkschr. k. Akad. Wiss., 
math.-naturw. 01. vol. xlv. p. 218, pis. xiii.-xv. 
Type. Head with abdominal region ; Imperial Geological Survey, 
Vienna. 
The type species, attaining a length of about 0'55. Length of 
head with opercular apparatus nearly equal to the maximum depth 
°f the trunk, which is contained somewhat more than twice in the 
length from the pectoral arch to the base of the caudal fin. Ver- 
tebrae nearly 50 in number, of which 20 are caudal. Pelvic fins 
with about 6, dorsal with about 14, and anal with about 8 rays. 
Form. 6f Loc. Cretaceous : Island of Lesina, Dalmatia. 
P- 7447. Imperfect specimen, crushed and distorted, the head being 
shown from above, the body chiefly from the side. The 
part iv. 
p 
