140 THE PLAGIOSTOMIA. 



cusp, broad based, edges serrated arid deeply indented above the base, on which 

 in some there is a prominence at the side of a notch; median very small. Eyes 

 small. Pectorals long, shorter than those of C. lamia, subfalciform, angles 

 pointed, reaching behind the dorsal base. Origin of first dorsal above end of 

 pectoral base, length of base greater than its distance from the ventrals, upper 

 angle blunted, hinder produced. Second dorsal base about half the length of 

 that of first dorsal, about equal its distance from the caudal, origin little in front 

 of that of the anal. Anal little smaller than the second dorsal, hind ends of 

 bases opposed, angles sharp. Caudal large, subcaudal lobe prominent. Closely 

 allied to C. commersonii. 



Greyish, lighter beneath. 



India; Fiji Islands; Japan. 



Carcharinus commersonii. 



Squalus sp. Gronow, 1763, Zoophy., 1, p. 32, no. 143 (syn. in part). 



Le squale requin Lacepede, 179S, Poissons, 1, p. 169 part, pi. 8, f. 2. 



Squalus carcharias Risso, 1810, Ichth. Nice, p. 25; Gray, 1854, Gron. eyst., p. 5 (part). 



Carcharinus commersonii Blainv., 1816, Bull. Soc. philom., p. 121; 1830, Poiss. Pr., p. 90. 



Carcharias lamia Risso, 1826, Hist. nat. 3, Poissons, p. 119; GtiNTH., 1810, Stidsee fische, 3, p. 481. 



Carcharias (Prionodon) lamia Muller & Henle, 1841, Plagios., p. 37, pi. 12; Dumeril, 1865, Elasm., 



p. 356; Gunth., 1870, Cat. fishes Brit, mus., 8, p. 372; Doderlein, 1881, Man. ittiol. Medit., 2, 



p. 40. 

 -/Carcharias {Prionodon) leucas Muller & Henle, 1841, Plagios., p. 42; Dumeril, 1865, Elasm., p. 358. 

 Squalus longimanus Poey, 1861, Memorias Cuba, 2, p. 338, pi. 19, f. 9, 10 (teeth). 

 Prionodon lamia Bocage & Capello, 1866, Plagios., p. 18. 

 Eulamia longimana Poey, 1868, Repertorio, 2, p. 448. 

 Eulamia lamia Jordan & Gilbert, 1881, Proc. U. S. nat. mus., 4, p. 32; 1883, Bull. 16, U. S. nat. mus., 



p. 60. 

 Carcharias obtusirostris Moreau, 1881, Poiss. France, 1, p. 332. 

 Carcharias lamiella Jordan & Gilbert, 1882, Proc. U. S. nat. mus., 5, p. 110; 1883, Bull. 16, U. S. nat. 



mus., p. 873. 

 ' 'archarias sp. incog. Jordan & Gilbert, 1882, Proc. U. S. nat. mus., 6, p. 107. 

 Eulamia lamiella Jordan & Bollman, 1889, Proc. U. S. nat. mus., 12, p. 179; 1895, Proc. Cal. acad. 



sci., ser. 2, 6, p. 382. 

 Eulamia (Platypodon) platyrhynchus Gilbert, 1891, Proc. U. S. nat. mus., 14, p. 543. 

 Carcharinus (Platypodon) platyrhynchus Jord. & Ever.m., 1896, Bull. 47, U. S. nat. mus., p. 36. 

 ' 'archarinus lamiella Jord. & Everm., 1896, ibid., p. 37. 

 Carcharinus lamia Jord. & Everm., 1896, ibid., p. 38. 

 Carcharias insvlarum Snyder, 1904, Bull. U. S. fish, comm., 22, p. 513, pi. 1, f. 13; Jord. & Everm., 



1905, Bull. TJ. S. fish comm., 23, p. 40, pi. 3, f. 1. 

 Carcharias ncsiotes Snyder, 1904, Bull. U. S. fish, comm., 22, p. 514, pi. 1, f. 2; Jord. & Everm., 1905, 



Bull. U. S. fish, comm., 23, pi. 3, f. 2. 



Snout short, broad, blunt, rounded; nostrils near the mid length, about as 

 wide as the orbit. Eyes small, width of orbits nearly half their distance from the 

 nostrils. Mouth large, strongly curved, distance from end of snout nearly equal 

 that between the nostrils, with a short labial groove in each angle. Teeth sub- 

 triangular, serrated, in 27-31 rows; upper nearly erect; lower narrower, more 



