TRIAKIS MACULATA. 107 



in front of that of the anal. Anal much smaller than the second dorsal, origin 



below the middle of the base of the latter, end extended behind that of the same 

 tin about the length of the orbit, hind margin more deeply excavated. Caudal 

 one fourth of the total, subcaudal lobe slightly produced. 



Olive brown, with a few spots of black, the largest about the size of the eye, 

 scattered over the sides; with eight or ten rather indefinite bands of darker across 

 the back and the flanks: first band across the nape, second to the middle of the 

 pectorals, third at the origin, fourth near the middle and fifth at the end of the 

 dorsal, sixth in the middle of the space between the dorsals, seventh at the 

 origin, and eighth at the end of the second dorsal. Scales small, tricarinate. 



Total length 28|, snout to abdominal pores 13|, snout to hindmost gill 

 opening 5j, and caudal 7 inches. 



Japan. Alan Owston. 



Triakis maculata. 



Triakis macula! us Kner& Steindachner, 1867, Sitzb. Akad. wiss. Wien, 54, p. 391. 

 Muslelus maculatus Gunth., 1870, Cat. fishes Brit, mus., 8, p. 387. 



Head broader than high, depressed, flattened beneath, convex on the crown, 

 length less than one fourth of the total length. Nostrils nearer to the mouth 

 than to the end of the snout, internarial space equal to the length of the mouth 

 or to half the width; anterior valve with a rather broadly rounded lobe. Mouth 

 moderate, broadly arched; labial folds wide, reaching nearly half the length of 

 each jaw. Teeth small, numerous, arranged as in the species Galeorhinus muste- 

 lus, and T. henlei, but with cusps sharper than those of the former, the median 

 cusp being short and broad at its base and obliquely directed outward and the 

 lateral denticles mere rudiments separated from the median by shallow notches 

 of which the inner is sometimes absent. Eye small; nictitating fold well devel- 

 oped but indistinct at the backward end. Spiracle small, distant from the orbit 

 half the length of the eye. Gill openings small, greatest width about equal the 

 length of the orbit, hindmost above the bases of the pectorals. Pectorals large, 

 nearly as broad as long, with angles rounded, hind border slightly concave, fin 

 applied to the side subtending half the base of the dorsal. Hinder angle pro- 

 duced on dorsals, ventrals, and anal. Origin of the dorsal above the hind margins 

 of the pectorals, end of the fin reaching to a vertical from the origins of the 

 ventrals, which are little forward of the middle of the total length. Second dorsal 

 little smaller than the first, similar in shape, origin little behind the ends of the 

 ventrals. Anal much smaller than the second dorsal and originating below the 



