252, BULLETIN OF THE BUREAU OF FISHERIES. 
This species differs from Trichiwrus savala Cuvier in its much larger eye, which is contained 2.50 
in the snout. Trichiurus savala is stated by Doctor Giinther, who had specimens, to have the eye 3.50 
in snout and is so figured by Cuyier & Valenciennes. Specimens recorded by Jordan & Seale from 
Cavite as 7. savala are not that species, but are Trichiurus hawmela. 
Family STROMATEID. 
APOLECTUS Cuvier & Valenciennes. 
91. Apolectus niger (Bloch). 
Three specimens from Manila, 2.50 inches long. 
Family EQUULIDA. 
EQUULA Cuvier, 
92. Equula insidiator (Bloch). 
Four specimens from Manila, 3 inches long. 
LEIOGNATHUS Lacépede. 
93. Leiognathus ensiferus (Cuvier & Valenciennes). 
Equula ensifera Cuvier & Valenciennes, Hist. Nat. Poiss., x, 66, 1835; Pondicherry. 
(2?) Scomber edentulus Bloch, Ichth., pl. 428, 1785; Tranquebar. 
Equula dussumieri Cuvier & Valenciennes, Hist. Nat. Poiss., X, 77, pl. 283, 1835; Coromandel. Giinther, Cat. Fishes, 0, 
500, 1860; Borneo. (Not Leiognathus dussumieri of Jordan & Seale, except in part, or of Evermann « Seale.) 
? Equula edentula, Giinther, Cat. Fishes, 11, 498, 1860; in part. 
Depth 1.80 (2.33 in total length); head 3.2 (4.16 in total length); nose short, rather deep, hardly 
equaling eye; eye 28 in head; nuchal spine straight, its length from the base of its median ridge 1} 
times eye, the tip of the spine reaching much more than halfway from its base to the first dorsal spine; 
supraocular ridges distinctly convergent posteriorly; mandible very little concave; lower margin of 
preopercle with a few indistinct and discontinuous fine serratures; teeth evident; second dorsal spine 
broken off; ventral spine short, not more than } length of second anal spine; pectoral 1.25 in head; 
scales larger than in allied species of Leiognathus, about 22 series before origin of spinous dorsal; color 
silvery, bluish above; anterior rays and membranes of spinous dorsal with dusky tinge; axil of pectoral 
blackish; sides of muzzle rather heavily punctulated with blackish. 
Color in life silvery; lateral line and edge of dorsal and anal bright lemon yellow; base of pectoral 
dusky, basal half of fin yellow; caudal washed with yellow, edged with dusky; sides of snout dusky. 
This species is most readily distinguished from those we have called Leiognathus caballus and coma 
by its less concave mandible and its larger scales. We do not believe that the Equula ensifera and 
B. dussumieri of Cuvier & Valenciennes are distinct, those authors stating that E. dusswmieri is merely 
a little more oblong and has the second dorsal srine a littleshorter. Cuvier’s characterization of Hquula 
ensifera by its second dorsal spine, which is said to be ‘‘compressed, broad, and curved like the blade 
of a saber,’’ applies more or less equally to any of the three allied species with which we are here con- 
cerned. If there is any difference in this respect, the specimens we have called L. caballus have the 
second dorsal spine broadest and most saber-like of the three species. But FE. caballa is explicitly 
contrasted by Cuvier & Valenciennes with E. ensifera and (by implication) with EZ. dusswmieri, as a 
species differing from both in its longer head and its strongly concave mandibular outline. We are 
not at all certain of the identity of Bloch’s Scomber edentulus, which is evidently both poorly described 
and poorly figured. It seems to us most likely that it is the fish we have here called Leiognathus coma, 
although we doubt if it is possible satisfactorily to determine it without examination of the type. 
Valenciennes’s verification of the synonomy of S. edentulus with Cuvier’s EL. ensifera we can not admit 
to hold, this having apparently gone little, if any, further than an examination of the teeth, in order 
to controvert Lacépéde’s position in establishing his genus Leiognathus. The Leiognathus argenteus 
of Lacépéde was founded on Bloch’s description in the entire absence of specimens. The present 
species seems not to have been known to Russell. 
Two specimens, 2.75 and 4 inches long, from Manila, and one from Hoilo, 1.75 inches. Three 
young specimens, 2.50 inches long, from Cavite, taken by Doctor Lung and recorded by Jordan & Seale 
