STEGOSTOMA VARIUM. 59 



Stegostoma. 



Stegostoma Muller & Henle, 1837, Sitzb. Akad. wiss. Berlin, p. 112; Wiegm. archiv., p. 395; 1838, 

 Charlesworth's mag., 2, p. 35; 1841, Plagios., p. 24. 



Body slender, less than half the total; head short broad; snout short thick 

 blunt; tail long, slender, compressed. Nostrils with a nasoral groove; anterior 

 valves united in a broad thick pad in front of the preoral fold, each with a cylin- 

 drical cirrus; posterior valves reduced to a narrow fold on the outer side of the 

 groove, terminating in a short flap at the angle of the mouth. Mouth trans- 

 verse, upper lip thin, between the nasal valves and the teeth; labial folds short, 

 around the angles. Narial valves, preoral fold, and chin invested with modified 

 scales. Teeth small, tricuspid, in transverse pads, of about 28 rows each. Eyes 

 small, lids without folds. Spiracles small, behind the eyes. Gill openings small, 

 fourth and fifth close together, hinder three above the pectoral. Dorsals approx- 

 imated, small; first larger, above the ventrals; second smaller than the anal 

 and farther forward. Anal near the caudal. Caudal long, horizontal; sub- 

 caudal narrow, not lobed. 



East Indies; India; Africa. 



Stegostoma varium. 



Squalus sp. Gronow, 1754, Mus., 1, p. 62. 



Squalus varius Seba, 1761, Thesaur., 3, p. 105, pi. 34, f. 1; Gronow, 1763, Zoophy., 1, p. 33, no. 147. 



Le Tigre Broussonet, 1780, Mem. Acad, roy., p. 658. 



Squalus tigrinus Forster, 1781, Zool. Ind., p. 24, pi. 13, f. 2; Bonnaterre, 1788, Ichth., p. 8, pi. 8, 



f. 23; Gmelin, 1789, Linne Syst., 1, p. 1493; Lacepede, 1798, Poissons, 1, p. 249. 

 Squalus fascialus Hermann, 1783, Tab. affin., p. 302, tab.; Bloch, 1785, Ausl. fische, 1, p. 19, pi. 113; 



Shaw, 1800, Nat. misc., 11, pi. 434; Schn., 1801, Bloch Ichth., p. 130. 

 Squalus longicaudus Gmelin, 1789, Lmn6 Syst., 1, p. 1496. 

 Pollee Makum Russell, 1803, Coromandel fishes, 1, pi. 18. 



Scyllium heplagonum Ruppell, 1835, Neue wirb. Abyssinien, Fische, p. 61, pi. 17, f. 1. 

 Stegostoma fasciatum Muller & Henle, 1837, Sitzb. Akad. wiss. Berlin, p. 113; Wieqm. archiv., 



p. 395; 1838, Charlesworth's mag. 2, p. 35; 1841, Plagios., p. 24, pi. 23; T. Cantor, 1849, Malay. 



fishes, p. 396; Bleeker, 1852, Verh. Bat. gen., 24, Plagios. p. 23; Dumeril, 1865, Elasm., p. 336; 



Gunth., 1866, Fishes Zanzibar, p. 140. 

 Stegostoma carinatum Blyth, 1847, Journ. Asiat. soc. Bengal, 16, p. 725, pi. 25 b, f. 1. 

 Stegostoma cirrosus Gray, 1854, Gron. syst., p. 6. 

 Stegostoma tigrinum Gunth., 1870, Cat. fishes Brit, mus., 8, p. 409; Regan, 1908, Proc. Zool. soc. Loud., 



p. 363; Tanaka, 1911, Fishes of Japan, 4, p. 65, pi. 16. 



Body and tail compressed; on a thirteen inch specimen the body cavity is 

 one third and the caudal more than one half of the total length. Head broad, 

 thick, crown convex; snout short, broadly rounded in front. Nostrils near the 

 end of the snout, connected with the mouth by a nasoral groove, anterior valves 

 fused into a broad pad free at the preoral edge, each with a slender cylindrical 



