212 
ACTINOPTEETGII. 
Genus HALiEC, Agassiz. 
[Yerhaudl. Ges. vaterl. Mus. Bohmen, 1834, p. 67.] ' 
Sjn. Pomognatlms, F. Dixon, Geol. Sussex, 1850, p. 367. 
Archceogadus, W. von der Marck, Palseontogr. vol. xv. 1868, p. 291. 
Phylactocejdialus, J. W. Davis, Trans. Roy. Dublin Soc. [2] 
Yol. iii. 1887, p. 605. 
Trunk deeply fusiform, both this and the head laterally com¬ 
pressed. Cranial roof exhibiting a median longitudinal depression, 
its lateral and occipital margins ornamented, like the other external 
bones, with ridges and tubercles of ganoine. Mandible a little 
prominent, with several rows of recurved conical teeth, irregular in 
size and arrangement; premaxilla long and slender, with two or 
more rows of minute teeth ; maxilla long and slender, underlapped 
by the premaxilla for the greater part of its length, but entering 
the gape behind, where it bears a spaced series of relatively large 
conical teeth pointing forwards; a conspicuous supramaxilla present; 
the comparatively stout palatine and ectopterygoid bones bearing a 
close series of acute, laterally-compressed teeth, which are largest 
in the middle and diminish towards each extremity; no teeth 
barbed. Preoperculum very narrow and deep, with a conspicuous 
posteriorly-directed spine at its lower end ; operculum strengthened 
on the inner side by a ridge extending almost horizontally back¬ 
wards to its postero-inferior angle; branchiostegal rays about 15 in 
number. Yertebrse from 35 to 45 in number, the centra at least as 
long as deep, much constricted mesially and somewhat strengthened 
with small longitudinal ridges. Fin-ray^s robust and all articulated, 
mostly also subdivided distally; no fin-rays excessively elongated. 
Paired fins large, the pelvic pair not much smaller than the 
pectorals; the short dorsal fin within the anterior half of the trunk; 
anal fin relatively small and remote ; caudal fin deeply forked. A 
regular squamation of very small scales, the exposed area of each 
quadrangular in shape; no enlarged scutes. 
Halec sternbergi, Agassiz. 
1834. Halec sternbergii, L. Agassiz, Yerhandl. Ges. vaterl. Mus. 
Bohmen, p. 67. 
1844. Halec sternbe^'gii, L. Agassiz, Poiss. Foss. vol. v. pt. ii. p. 123, 
pi. Ixiii. 
1845-46. Halec sternbergii, A. E. Reuss, Yerstein. bohm. Kreideform. 
pt. i. p. 13, pt. ii. p. 118, pis. xxii., xxiii. 
1878. Halec sternbergiij A. Fritsch, Rept. u, Fische bohm. Kreideform. 
p. 37, pi. ix. 
1883. Halec sternhergii, A. Fritsch, Archiv naturw. Landesdurchf. 
Bohmen, vol. v. no. 2, p. 89, fig. 47. 
