7 
Ct' <v. ) V h ' ^ 
«? T- /2=/v, 
427 
Genus AIPICHTHYS, Steindachner. 
[Sitzungsb. k. Akad. Wiss., math.-naturw. Cl. vol. xxxviii. 
1860, p. 763.] 
Trunk much deepened, and head short and deep, with a large 
supraoccipital crest. Eye rather small; cleft of mouth oblique 
and wide, the gape extending to the hinder border of the orbit; 
maxilla expanded behind ; teeth minute but numerous. Pelvic fins 
inserted directly below the pectorals, somewhat larger than the 
latter; dorsal fin much elevated and extending along nearly the 
whole of the back, with 2 to 4 very short and rather stout anterior 
spines; anal fin comparatively low, opposed to the hinder half of 
the dorsal, with 3 or 4 short and stout anterior spines ; caudal fin 
deeply forked. Scales thin and small, except a series of ventral 
ridge-scales on the short abdominal region. 
Aipichthys pretiosus, Steindachner. 
1860. Aipichtys pretiosusy F. Steindachner, loc. cit. p'. 763, pi. i. fig. 1. 
1882. Aipichthys pretiosus, F. Bassani, Denkschr. k. Akad. Wiss., 
math.-naturw. Cl. vol. xlv. p. 262. 
1895. Aipichthys pretiosus, B. G. Kramberger, T)jela Jugoslav. Akad. 
vol. xvi. p. 46, pi. ii. fig. 3. 
Type. Nearly complete fish; Court Museum, Yienna. 
The type species, attaining a length of about 0'09. Maximum 
depth of trunk equalling four fifths of total length of fish to base of 
caudal fin; length of head with opercular apparatus about half 
that of vertebral column. Dorsal fin with 3 spines and about 30 
articulated rays, of which the fourth is excessively elongated, its 
length at least equalling the depth of the trunk at its insertion; 
anal fin with 3 spines and about 19 articulated rays. 
The type specimen does not exhibit any distinct evidence of more 
than 10 vertebrae in the abdominal region. 
Form. ^ Loc. Cretaceous : Comen, Istria ; Isle of Lesina, Dal¬ 
matia. 
Not represented in the Collection. 
Aipichthys velifer, sp. nov. 
1887. Platax minor, J. W. Davis, Trans. Boy. Dublin Soc. [2] vol. iii. 
pi. XXV. fig. 7 {errore). 
Type. Nearly complete fish ; British Museum. 
A species about as large as the type, of similar proportions. 
