THE FISHES OF NEW JERSEY. 325 
Archosargus probatocephalus Bean, Bull. U. S. F. Com., VII, 
1887, p. 142, Pl. 3; fig. 10.—Moore, Bull. U. S. F. Com., XII, 
1892, p. 362.—Smith, Bull. U. S. F. Com., XII, 1892, p. 374. 
Sargus ovicephalus Abbott, Geol. N. J., 1868, p. 809. 
Family GERRIDA. 
The Mojarras. 
Body oblong or elevated, compressed. Mouth moderate, ex- 
tremely protractile, descending when protruding. Spines of pre- 
maxillary extending to above eye, closing a deep groove on top 
of head. Maxillary without supplemental bone, not slipping 
under very narrow preorbital, its surface silvery like rest of head. 
A slit between base of mandible and preorbital to permit its free 
motion. Both jaws with slender villiform teeth. No incisors, 
canines or molars. No teeth on vomer or palatines. Nostrils 
double, round. Preopercle entire or serrate. Gill-membranes 
separate, free from isthmus. Gill-rakers short, broad. Pseudo- 
branchiz concealed. Branchiostegals 6. Lower pharyngeals 
close together, often appearing united, teeth blunt. Air-vessel 
present. Pyloric cceca rudimentary. Vertebre 10 + 14 = 24. 
Oviparous. Body covered with large smooth scales. Sides of 
head scaly. Lateral line continuous, concurrent with back. Dor- 
sal fin single, continuous or deeply notched, spinous and rayed 
portions about equally developed with scaly sheath along base. 
Dorsal spines usually IX or X. Anai usually with III spines, 
soft portion of fin similar to soft dorsal but shorter. Ventrals 
thoracic, I, 5, rather close together and slightly behind pectorals. 
Moderate or small-sized carnivorous fishes in tropical seas, ex- 
ternally very similar in appearance. The larger species are food- 
fishes of fine flavor. One species has been taken on our ‘shores. 
Genus Eucrnostomus Baird. 
The Mogjarritas. 
Eucinostomus gula (Cuvier). 
ead4 in teigl sD: xo 702A. da 7 or; Pe 3); Viel 5 5 
eye large, 3 in head. Mouth small, very protractile, and when 
