NO. 1213. A LIST OF JAPANESE FISHES-JORDAN AND SNYDER. 339 



The following description is of a male: 



Length of specimen, measured from tip of snout to end of second 

 dorsal fin, 520 mm. (The caudal filament is broken off at a point 

 2S0 nmi. beyond the end of second dorsal.) E3^e oblong; or))it meas- 

 ured between the surrounding cartilages 8 in head; longitudinal diam- 

 eter of iris, 3f in head; center of pupil a little nearer upper edge of 

 gill-opening than tip of snout. Claspers equal in length to diameter 

 of pupil. Anterior laminte of upper jaw with irregularl}^ sinuated, 

 sharp edges; 9 enamel rods visible from before; posterior laminae 

 broad; lateral and anterior edges slightly serrated; enamel rods suc- 

 cessively larger and farther apart anteriorly; the surface with 2 lon- 

 gitudinal, slightly elevated ridges of enamel; laminge of lower jaw each 

 with 2 sharp elevations; the spaces between concave; inner posterior 

 surfaces broad, with long, rounded ridges of enamel extending back- 

 ward. Above and posterior to the eye the lateral line divides into two 

 which subdivide, sending branches to various parts of the head; pos- 

 terior to its division the lateral line passes upward and l)ackward to a 

 point below the dorsal spine, from which it extends just above the 

 middle of body in short undulations, which grow less evident poste- 

 riorly to the end of dorsal fin, where it bends downward, passing along 

 the base of caudal. Dorsal spine, equal in length to longest rays; six 

 times the diameter of pupil; triangular in cross section; grooved pos- 

 teriorly above the point of separation from the vays; edges of groove 

 with sharp spines which are directed backward and curved downward. 

 Anterior rays of dorsal separated from the spine at a point a little 

 below its middle; the anterior rays are closely apposed at their bases; 

 the two posterior ones separated by membrane. Posteriorly the fin 

 from its base to the tip of the last ra}^ is connected with the back by 

 a wide membrane which, growing lower, extends almost to origin of 

 second fin. Pectoral fin pointed; If as long as the dorsal spine; when 

 depressed its tip reaches middle of ventral. Ventrals pointed at tips, 

 the posterior edges below truncate. Second dorsal fin a little higher 

 than diametei" of pupil; the posterior edge rounded; separated from 

 caudal by a deep notch. Anal fin low, pointed posteriorly; separated 

 from anal liy a deep notch below the end of the dorsal. The lower 

 caudal membrane extends posteriorly much farther than the upper. 

 Color, silvery white below, growing darker above; the upper part of 

 the snout almost black. Fins darker than body, the dorsal and anal 

 edged wnth blackish. 



