TRIDENTIGER 285 



caudal has an upper and lower blackish spot at the end of the 

 longitudinal bands, and numerous (five to eight) crossbars of 

 dark spots, usually only those near base clearly defined; the 

 pectoral and ventrals uniform yellowish. 



Here described from seven specimens from Amoy and thirteen 

 from Fu-chow, Fukien Province, China, collected by Light; they 

 vary in length from 33 to 67.5 millimeters. A female, 55 milli- 

 meters long, is enormously distended with eggs about to be 

 spawned. The Bureau of Science collection also contains four 

 typical specimens, 33 to 44 millimeters long, collected by Scale 

 at Hongkong. On them the lower color band continues on the 

 caudal fin for half or all its length. In one of the adult males 

 from Fu-chow the two longitudinal bands are connected by six 

 or seven crossbands on the sides of the body. 



The Bureau of Science collection also has twenty-four spec- 

 imens, 39 to 64 millimeters in length, collected by the Albatross 

 at Shiogama, Rikuzen, Japan. 



This species was originally described from near Vladivostok, 

 and is known from the coasts of Japan and China. 



144. TRIDENTIGER TRIGONOCEPHALUS (Gill) 



Triaenophorichthys trigonocephalus GILL, Proc. Acad. Nat. Sci. Phila. 



(1859) 195; GUNTHER, Cat. Fishes Brit. Mus. 3 (1861) 89. 

 Tridentiger trigonocephalus RENDAHL, Arkiv Zoologi 16 (1924) 27. 



Dorsal VI, 1-11 or 12 ; anal 1, 10 or 11 ; there are 56 to 58 scales 

 in a longitudinal series, 22 in a transverse series, and about 28 

 before first dorsal. 



The robust body rounded anteriorly, the posterior two-thirds 

 laterally compressed, the dorsal outline but little elevated or 

 slightly convex, depressed anteriorly, the depth 4.8 to 5 times 

 in length; the head very broad, low, flat, with enormously 

 developed cheeks on the larger specimens, 3.25 times in length; 

 the breadth of head always exceeds its depth, being 0.5 to 0.6 

 more than the latter, and 0.75 to more than 0.9 of its own length ; 

 the snout short, bluntly rounded, 3.5 to 4 times in head; the 

 eyes almost on top of head, looking up as well as laterally, 1.25 

 to 1.5 times in snout and 4.75 to 5.2 times in head ; the flat inter- 

 orbital equals or is a little wider than eyes; the mouth rather 

 small, oblique, the jaws equal, the lips fleshy, especially the 

 upper one so that the lower jaw appears inferior, the posterior 

 angle of maxillary beneath middle of eye or extending as far 

 as posterior margin ; the teeth are as given for the genus, those 

 of outer row densely crowded; the body covered with small, 



