414 
ACTIIvOPTEEYGII. 
half times in the length from the pectoral arch to the base of the 
caudal fin. Dorsal fin-spines apparently shorter and scales re¬ 
latively larger than in the preceding species. Serrations of scales 
very fine. 
Form. Loc. Miocene: Malta. 
P. 5310. Type specimen, described loc. cit. Purchased, 1887. 
The following extinct species is not represented in the Col¬ 
lection :— 
Holocentrum 'pygmceum, L. Agassiz, Poiss. Poss. vol. iv. (1835-39), 
pp. 6, 47, 109, pi. XV. fig. 1.—Upper Eocene; Monte 
Bolca. [Imperfect , fish; Paris Museum of Natural 
have been described as follows :— 
Otolithus (Hoplostethus) ingens, E. Koken, Zeitschr. deutsch. geol. 
Yol. xliii. (1891), p. 117. 0. {A^ogonidarum) 
/t-dV- TT, TTnlrPn Tnr. vnl V5nrvi n 
c. pi. ix. fig. 2.—Pliocene ; Orciano, Tuscany. 
^tolithus {Hoplostethus) nettelbladti, E. Koken, loc. cit. 
- p. 116, pi. ix. fig. 6.—Upper Oligocene; Sternberg. 
Otolithus (Eojolostethus) ostiolatus, E. Koken, loc. cit. 1891, 
p. 116, pi. ix. figs. 4, 5.—Middle Ohgocene; Wald- 
bockelheim. 
Otolithus {Hojglostethus) jpisanus, E. Koken, loc. cit. 1891, p. 115, 
pi. ix. fig. 1.—Pliocene; Orciano. 
Otolithus {Monocentris) hospes, E. Koken, loc, cit. 1891, p. 119. 
0. {Apogonidarum) /iosp^s,E. Koken, loc. cit. vol. xl. (1888), 
p. 278, pi. xviii. fig. 15.—Lower Tertiary; Jackson Kiver, 
Mississippi. 
Otolithus {Monocentris) integer, E. Koken, loc. cit. 1891, p. 119, 
fig. 13. 0. {Apogonidarum) integer, E. Koken, loc. cit. 
1885, p. 114, pi. V. fig. 27.—Lower Eocene; Copen¬ 
hagen. 
