ALBUIJD^. 
71 
A small slender species. Dorsal fin with about 45 rays; anal 
fin with 12 or 13 rays, almost completely behind the dorsal. 
Form. ^ Log. Upper Cretaceous : Baumberg, Westphalia. 
P. 3892. Type specimen, apparently elongated by distortion, de¬ 
scribed and figured by Agassiz, loc. cit. EnnisJciUen Coll. 
1275 (Sloane Catal. Pishes). Specimen about 0T6 in length, more 
satisfactorily preserved. Becorded as “ the skeleton of a 
small fish of a rusty colour lying in a fine-grained ash- 
coloured stone from Palestine ” ; but the matrix identical 
with that of specimens from the Baumberg, Westphalia. 
Sloane Coll. 
Istieus lebanonensis, Davis. 
1887. Istieus lebanonensis, J. W. Davis, Trans. Bo}'. Dublin Soc. [2] 
vol. iii. p. 553, pi. xxx. fig. 3. 
Type. Imperfect fish ; Edinburgh Museum. 
A small stout species, known only by the unique type specimen, 
which must have originally measured about 0’16 in length. Head 
relatively larger than in the type species ; dorsal fin with about 
40 rays ; anal fin with about 10 rays, completely behind the dorsal. 
Form. Loc. Upper Cretaceous : Sahel Alma, Mt. Lebanon. 
Hot represented in the Collection. 
The fragment from the Tiironian of Bohemia named Istieas spoUii 
by A. Eritsch (Sitzungsb. k. bbhm. Ges. Wiss. 1879, p. 2) does not ^ 
belong to this --- 
S nriT ^9 
Genus ANOGMIUS^ Cope. 
U/'O 
[Bull. U.S. Geol. Surv. Territ. vol. iii. 1877, p. 584 ^,] 
An imperfectly known genus, with an extended dorsal fin occu¬ 
pying the greater part of the back, and a small anal fin opposed to 
its hinder end. Teeth minute and clustered on the margin of the 
jaws, also on the parasphenoid and other bones within the mouth. 
About 6 branchiostegal rays. Yertebrse about 80 in total number, 
the centra deeper than long and marked with fine longitudinal 
ridges or striae. Scales elliptical, not serrated or pectinated. Hot 
clearly distinguished from Istieus., but apparently differing in 
presence of teeth on parasphenoid and clustering of marginal teeth. 
^ The generic name Anogmius was originally given by Cope in 1871 (Proc. 
Amer. Phil. Soc. vol. xii. pp. 170, 354) to some detached vertebra, specifically 
termed A. contractus. In 1875 he cnnchided that these vei-tebra belonged to 
Pachyrhizodus (Yert. Cret. Form. West, p. 220 a). In 1877 he used the same 
generic name again with a new definition as here given. 
