CARCHARINUS OXYRHYNCHUS. 143 



Squalus (Carcharias) leniminckii Blyth, 1860, Journ. Asiat. soc. Bengal, 29, p. 30. 

 Lamiopsis temmincku Gill, 1861, Ann. N. Y. lyo., 7, p. 410 (name only). 



Head rather pointed, depressed. Snout moderate, length al)out equal to 

 width of mouth or to width across the nostrils, rounded at the end. Nostrils 

 behind the mid length of the snout; valve with a pointed lobe of some promi- 

 nence. Greatest diameter of the orbit much less than the width of the gill 

 openings. Mouth strongly arched, with a short labial fold at the angle. Teeth 

 in ||E|f rows, serrated, subtriangular, erect, basal width less than length from 

 apex in the upper series; lower smaller, with narrower to awl-shaped cusps on 

 broad bases, unserrated; median small, in one to three rows. Toward the angles 

 of the mouth the teeth are very small ; their cusps are short and broad. Pectorals 

 broad, little longer than wide, subtriangular, reaching below the middle of the 

 dorsal, outer angle sharp, inner rounded, hind margin slightly conca\'e. First 

 dorsal midway between pectorals and ventrals, hind margin not greatly indented. 

 Base of second dorsal three fourths as long as that of the first and less than half 

 of the distance between the two, fin larger than the anal. Anal small, base much 

 shorter and below the middle of that of the second dorsal, hind margin shghtly 

 concave. Caudal pointed, length about one fourth of the total, rather deep but 

 subcaudal lobe not greatly developed. 



Yellowish brown; lower surfaces yellowish white. 



Indian Seas. 



CaRCHARINUS OXYRHYNCHUS. 



Carcharias (Prionodon) oxyrhynchus Muller & Henle, 1841, Plagios., p. 41, pi. 1,5; Du.m^ril, 1865, 



Elasm., p. 356; Gunther, 1870, Cat., fishe.s Brit, mus., 8, p. 375. 

 Isogomphodon oxyrhynchus Gill, 1861, Ann. N. Y. lye, 7, p. 410 (name only). 



Snout long, pointed, straight on the sides. Nostrils nearer to mouth than 

 to end of snout, separated by about a half length of the snout; valves blunt, 

 small. Labial folds on both jaws, short. Orbit narrower than the nostrils. 

 Teeth alike in the two jaws, narrow, erect, in 46-49 rows, lower little more 

 slender, upper serrated near the apices. Gill openings moderate, one opening 

 above the pectoral. Pectorals large, one half longer than broad, reaching beyond 

 the dorsal, hind margin little concave, angles rounded. Dorsal origin above the 

 end of the pectoral base, tip not reaching the ventrals. Second dorsal little 

 larger than the anal, origin farther forward, end reaching half way from base to 

 caudal. Anal smaller than second dorsal, base wholly below the dorsal base, 

 fin less than half the length of first dorsal, more deeply indented on the hind 

 margin than on either dorsal. Scales minute, tricarinate. 



