2o6 Memoir Sears Foundation for Marine Research 



rated from each other, the distance between them nearly Yo as great as length of snout in 

 front of mouth, the anterior margin expanded as a rather narrow subtriangular lobe with 

 rounded apex and well marked median crest but falling considerably short of the mouth, 

 the posterior margin also developed as a rounded flap (Fig. 32 A), much as in S. retifer 

 and S. torrei. Mouth obtusely ovate, about ^^ as high as broad. Lower labial furrow 

 slightly less than V3 as long as distance from corner of mouth to symphysis of lower jaw. 



Teeth f^Efjj"* similar in the 2 jaws, usually with 5, occasionally with 3 (or even 7) 

 cusps, the median much the longest, narrow-triangular and sharp-pointed, curving slightly 

 toward corner of mouth in most cases, the anterior surfaces of teeth longitudinally striate; 

 5 rows (locally only 4) functional in each jaw. 



First dorsal brush-shaped, its margins nearly straight, its corners narrowly rounded, 

 its origin slightly behind rear end of bases of pelvics, and a little nearer to snout than to 

 tip of caudal, the interspace between ist and 2nd dorsals about twice as long as base of ist 

 dorsal. Second dorsal similar in shape to ist, and nearly as long at base as latter, but only 

 about % as high vertically, its origin on a vertical line about halfway between midpoint 

 of base of anal and rear end of latter. Caudal a little less than Yi of total length, relatively 

 somewhat longer in small specimens than in large,'^ its upper contour nearly straight, its 

 terminal sector transversely truncate, with rounded corners, occupying about Vs total 

 length of the fin, lower anterior corner much more than a right angle. Anal a little 

 less than twice as long at base as 2nd dorsal, and longer than ist dorsal by a distance 

 about as long as horizontal diameter of eye, with nearly straight margins, rounded apex 

 and subacute free rear corner, about Vs as long as the base. Pelvics about as large as anal, 

 their anterior margins nearly straight, distal margins weakly concave, corners subangular, 

 their inner edges, in half -grown male, united behind cloaca for a little less than ^o their 

 lengths. Pectoral about 3 times as large as ist dorsal in area, about 70% as broad as long, 

 the outer and inner margins moderately convex, the distal margin nearly straight, apex 

 narrowly rounded, inner corner more broadly so. 



Color. Back and sides pale yellowish brown, marked transversely with seven broad 

 but indistinct dark blotches, one midway of the caudal, one at caudal's origin, one oppo- 

 site each dorsal fin, and three equally spaced in front of the first dorsal, the most anterior 

 being opposite the origin of the pectorals; also a large number of small dark chocolate- 

 brown spots of varying sizes irregularly spaced, some nearly circular and some in the form 

 of rosettes; one much larger than the others below the first dorsal, with others opposite 

 the origin and rear part of anal; likewise a lunate blotch on each flank about midway be- 

 tween the rear corner of the pectoral and the origin of the pelvics ; lower surface very pale 

 yellowish brown, plain except that the lower side of head is faintly mottled; and there are a 

 few dark spots on the pectorals (about twice as many on the one as on the other in the half- 



30. It is possible that there was one more series of teeth in each jaw, it being difficult to determine the precise number 

 in the available material. 



31. A little longer than from snout to inner corner of pectoral in newly hatched specimen, but only about as long 

 as from snout to axil in a half-grown one. 



