202 Mr. C. T. Regan on the 



the higliest rays more than half the length of the liead, 

 A. Ill 19-21, rounded, rather higher than soft dorsal. 

 Pectorals rounded, rather longer than ventrals, whieh extend 

 to anal. Caudal slightly emarginate. Sc. 100 ^^. Lateral 

 line with a long curve, becoming straight above middle of 

 anal, jirown, pectorals and caudal white. 



Total length 35 millim. 



Surface of open sea between New Guinea and Japan. 



Lirus perciformis. 



Coryplicena perciformis, Mitchill, Am. Month. Mag. ii. 1818, p. 244. 

 I\ili7mrichthijs perciformis, Gill, Proc. Ac. Philad. 1800, p. 20. 

 Pammelas 2)erciformis, Gunther, Cat. ii. p. 48o (1860). 

 (Further .synonymy given in Jordan & Evermann, Fishes N. Am. i. 

 p. 964.) ■ 



Depth of body 2^ times in total length, length of head 3 to 

 3-?^ times. Snout as long as the eye, the diameter of w'hich 

 is 4 to 4| times in length of head; interorbital width 2^ 

 times in length of head. Maxilla extends to below anterior 

 quarter of eye. Caudal peduncle 1^ times as long as deep. 

 L). VIII 19-21 ; the spines increase in length to the fourth, 

 the otliers subequal, the first soft ray much higher than the 

 last spine, the soft fin rounded. A. Ill 16-18, rounded. 

 Pectorals a little longer than ventrals, about | length of head. 

 Sc. 80-90 ^^. Lateral line with a long curve, becoming 

 straight below posterior dorsal rays. Greenish brown, fins 

 dark. 



Total length 240 millim. 



North Atlantic. 



Lirus porosus. 



Diaprnmna 2)orosa, Pichards. Ereb. Sc Terr., Fish. p. 26, figs, o, 6 (1845) 



Hyperoglyphe jiorosa, Gunther, Cat. i. p. 337 (1859). 



Iv-us jiorosns, Giiuther, * Challenger' Pelagic Fishes, p. 11 (1888). 



Depth of body 2^ times in total length, length of head 3 to 

 3^ times. Snout as long as eye^ the diameter of which is 4 

 times in length of head (3 times in very young specimens). 

 Interorbital width 3 times in length of head. Maxilla nearly 

 reaches to below middle of eye. Caudal peduncle 1;^ times as 

 long as deep. D. IX 20, the spines increasing in length to 

 the fourth, decreasing from the sixth to tlie eighth, the ninth 

 longer than the seventh ; soft fin higher than the spinous, the 

 soft rays decreasing in length from the third. A. Ill 16; 

 longest rays of dorsal and anal not much more than ^ length of 

 head. Ventrals nearly as long as pectorals, which are f. length 



