CARCHARINUS PLEUROTAENIA. 137 



of the ventrals. Second dorsal small, above the anal and of equal length but 

 lower, hind angle produced. 



Yellowish grey, lighter below, a blackish spot below the end of the pectoral, 

 on the second dorsal, and on the subcaudal lobe. No spot on the first dorsal. 



Indian Ocean. 



Carcharinus dussumieri. 



Carcharias (Prionodon) dussumieri Muller & Henle, 1841, Plagios., p. 47, pi. 19, f. 8; Dum6ril, 1865, 

 Elasm., p. 370; Kner, 1867, Nov. fische, p. 414; Gunth., 1870, Cat. fishes Brit, mus., p. 367; Day, 

 1878, Ind. fishes, p. 714, pi. 187, f. 2. 



Carcharias (Prionodon) javanicus Bleeker, 1852, Verb. Bat. gen., 24, Plagios., p. 38, pi. 2, f. 5; Dum^ril, 

 1865, Elasm., p. 369. 



Proportions of the body somewhat like those of C. sorrah. Snout moderate, 

 bluntly rounded, preoral length little more than width of mouth, nostrils nearly 

 half way from the mouth to the end. Teeth serrated, oblique, in i| rows; upper 

 with broader cusps, inclined outward above a notch and a strongly denticulate 

 basal process; lower more erect, with smaller cusp on broad base and with less of 

 a notch on the outer side, serrated to the point; median small. Greatest diame- 

 ter of orbit less than that of the gill openings. Pectoral less than twice as long as 

 broad, subfalciform, outer angle blunted. Dorsal rather high, origin at a short 

 distance behind the pectoral base, fin nearer to the pectorals than to the ventrals. 

 Second dorsal and anal about equal, bases nearly half the length of the base of 

 the first dorsal, hind angles acuminate, reaching about half way from the base 

 to the caudal, hind margin of anal not much indented. These fins are longer 

 than in C. sorrah and the bases are more directly opposed. 



Greyish brown, with white fin margins, top of second dorsal dark, lower 

 surfaces whitish. 



China; India; East Indies. 



Carcharinus pleurotaenia. 



Carcharias (Prionodon) pleurotaenia Blebker, 1852, Verh. Bat. gen., 24, Plagios., p. 40, pi. 2, f. 6; Dum- 

 6ril, 1865, Elasm., p. 377. 



Body elongate, compressed; head tapering, length about one fifth of that 

 of the body. Snout rather produced and pointed, preoral length little less than 

 the width of the mouth; nostrils nearer to the mouth than to the end of the snout, 

 with a small point on the valve. Teeth erect, bases broad, cusps narrower, 

 rows §§; upper cusps rather broader, serrated, lower lanceolate, smooth. Gill 

 openings about three times the width of the eye. Pectorals reaching beyond the 

 end of the dorsal. Dorsal origin close to a vertical from the bases of the pectorals. 



