404 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [62] 
59. SCIZENA TYPICA. 
Ophioscion typicus Gill, Proc. Acad. Nat. Sci. Phila., 1865, 165 (west coast Central 
America). 
Corvina ophioscion Giinther, Fish. Central America, 387 and 428, 1866 (Panama). . 
Sciena ophioscion Jordan & Gilbert, Bull. U.S. Fish Com., 1881, 315 (Panama). 
Habitat.—Pacific coast of tropical America; Panama. 
This species is not uncommon about Panama. In its slender head 
and lanceolate caudal fin it would seem to differ widely from most of 
the related forms. Its relations with S. sciera are, however, close, and 
S. imiceps is evidently intermediate. 
The undesirability of such words as ‘“typicus” as specific names is 
very evident in this case. If we follow the law of priority we have a 
name which is self-contradictory, as this is one of the species most un- 
like the real type of Sciena. 
60. SCIANA IMICEPS. 
Sciena imiceps Jordan & Gilbert, Bull. U. 8. Fish Com.) 1881, 309 (Bay of Panama). 
Habitat.—Pacific coast of tropical America ; Panama. 
This small species is not rare at Panama. It resembles the species of 
Stelliferus, and it has real affinities with the latter group. The head is, 
however, different, being low and narrow, and little cavernous, while 
the gill-rakers are very short, as in the other species referred to Ophio- 
scion. 
61. SCIZNA SCIERA. 
(CORBINETA. ) 
Sciena vermicularis Jordan & Gilbert, Bull. U. S. Fish Com., 1861, 315 (Mazatlan ; 
Panama) (not Corvina vermicularis Giinther). Gilbert, 1.c., 1882, 112 (Punta 
Arenas). 
Sciena sciera Jordan & Gilbert, Proc. U.S. Nat. Mus., 1884, 480 (Panama). 
Habitat.—Pacific coast of tropical America. 
This species is one of the most abundant of the Sciznoid fishes on 
the Pacific coast of Mexico. It was at first taken by Jordan and Gil- 
bert for the Corvina vermicularis of Giinther, but the latter species is 
well distinguished by the enlarged teeth * of the lower jaw and by the 
sharp upper lobe of the caudal. 
62. SCIZNA VERMICULARIS. 
* Corvina vermteularis Giinther, Fish. Central America, 387 and 427, plate 67, fig. 2, 1869 
(Panama). 
Sciena vermicularis Jordan, Proc. U.S. Nat. Mus., 1885, 381 (Panama). 
Habitat.—Pacific coast of tropical America; Panama. 
This species is rare about Panama. One specimen was obtained by 
Dr. Gilbert in 1883. Besides this, only Dr. Giinther’s original type is 
on record. 
*This character is not mentioned in the description of S. vermicularis. We give it 
on the strength of our remembrance of the species, as no specimens of the species now 
exist in any American museum. 

