|ja. 1324. ELASMOBRANCHIATE FISHES— JORDAN AND FOWLER. (iOV) 



' Body everywhere very finely roughened. 



First dorsal larger than second, nearer origin of pectoral than that 

 iof ventral; origin of second dorsal nearer that of first dorsal than tip 

 jof caudal, and with greater part of its base in front of anal; anal 

 smallest nearer caudal than ventral; pectorals a little larger than 

 first dorsal, broad, very slightly emarginate; ventrals small, origin 

 nearer that of anal than pectoral; caudal short, a little less than space 

 between two dorsals. Caudal peduncle rather long, least depth 

 fgreater than least width, 



I Color in spirits uniform grayish-ljrown, much darker above, pale 

 below; upper surface of bod}^ anteriorl3% also along the lateral line, 

 jnarked with small, round, whitish spots. 

 ' Length 22 inches (56 cm.). 



This description taken from our largest example, a male, secured 

 jat Tokyo. 



I Coasts of Japan, generally abundant in shallow bays, especially to 

 jthe southward, our specimens from Hakodate, Aomori, Matsushima, 

 Tokyo, Misaki, Kobe, Onomichi, Hiroshima, and Hakata. It is a 

 small shark, reaching a length of about 2^ feet, and is used for food. 

 In young specimens the tips of the caudal and dorsals are blackish. 



[Manaso^ the flapanese name.) 



9. TRIAKIS Muller and Henle. 



Triakis Muller and Henle, Magazine of Natural History, II, 1888, p. 36, 



{scyUium). 

 Triads, corrected spelling. 



Body compressed, elongate; mouth large, crescent-shaped, with 

 well-developed long labial folds; teeth moderate, numerous, similar in 

 both jaws, each with a longer median cusp, and one or two smaller 

 ones on each side; eyes small, with nictitating membrane; spiracles 

 small, behind the eyes; no pit at the root of the caudal; no lower 

 lobe to the caudal; first dorsal fin opposite the space between the pec- 

 torals and ventrals. Embryo without placenta. Coloration variegated, 

 black and gray. Pacific and Indian oceans. 



(rpe/cr, three; ciKig^ point). 



g. TRIAKIS SCYLLIUM Muller and Henle. 

 KOROZAME (KORO, INCP^NSE BURNER; ZAME, SHARK). 



Tiiakis scylUum Mullek and Henle, Plagiostomen, 1838, p. 63, pi. xxvi; 

 Nagasaki.— DuMERiL, Elasmobr., 1870, \^. mi (after Muller and Henle).— 

 Jordan and Snyder, Proc. U. S. Nat. Mus., 1900, p. 330; Tokyo. 

 Triads SCI/Ilium Gunther, Cat. Fish, VIII, 1870, p. 384 (after Muller and 

 Henle).— IsHiKAWA, Prel. Cat., 1897, p. 62; Tokyo, Saganii. 

 Head 6| in length; depth 8|; width of head U in its length; depth 

 of head 2; snout 2^; inlerorbital space a ti-ifie over 2; eye 6i; width 

 of mouth 2|; snout to mouth 2|; space between spiracles 1^; base of 

 dorsal 1^; base of anal 2. 



