86 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



Scyliorhinus russellianus Blainville, Bull. Soc. Philom., Paris, 1816, p. 121 

 (name only; assumed based on Bokee sorrah Russell, Fishes of Coromandel, 

 vol. 1, p. 10, pi. 10, 1803; type locality: Vizagapatam ; Ra sorrah Russell, 

 Fishes of Coromandel, vol. 1, p. 10, 1803, Vizagapatam). 



ChiloscylUum indicttm (not Gmelin) Bleeker, Verb. Batav. Genootsch. (Pla- 

 giost), vol. 24, p. 17, 1852 (part). — GiJNTHER, Cat. Fishes British Mus., vol. 

 8, p. 412, 1870 (part).— Day, Fishes of India, pt. 4, p. 726, 1878 (part).— 

 JoBDAN and EvERMANN, Proc. U. S. Nat. Mus., vol. 25, p. 317, fig. 1, 1902 

 (Formosa). — Jordan and Fowler, Proc. U. S. Nat. Mus., vol 26, p. 604, fig. 

 2, 1903 (Formosa example). — Pietschmann, Sitz. Ber. Akad. Wiss. Wien, 

 math.-nat. Kl., vol. 117, pt. 1, p. 698, 1908 (Japan). 



ChiloscylUum margaritlferum Bleeker, Nederland. Tijdschr. Dierk., vol. 1, p. 

 (240) 243, 1864 (type locality: Obi Island). 



ChiloscylUum griseum (part) Mullee, and Henle, Syst. Beschr. Plagiostomen, 

 pi. 4, 1841. 



Depth 81^ to subcaiidal origin; head 6, width ly^. Snout 2 in 

 head, obtusely pointed as seen above ; eye 7, 3% in snout, 2% in inter- 

 orbital, twice long as deep; dentary width 3% in head, with short 

 labial folds at each mouth angle and broad lower lip free across sym- 

 physis; teeth in 30 rows above, 28 below, small cusps rather broadly 

 triangular, edges entire ; nostrils near first fourth in snout, cirri little 

 less than orbit ; interorbital 3l^ in head, broadly and slightly convex. 

 Gill openings narrow, third and fourth widest, fifth close under 

 fourth and third to fifth above pectoral base. Spiracle 1% in eye, 

 opposite hind eye edge and close below. 



Scales very small, crowns flattened, each with 5 to 9 keels. Single 

 slight median keel down back. 



First dorsal begins opposite first third of ventral base, length ly^ 

 in head, hind lobe short point ; second dorsal origin little nearer anal 

 origin than first dorsal origin, length V/^ in head, hind lobe short 

 point; anal height i^ its length, which 1% in head, 1% in subcaudal, 

 21/4 in caudal ; least depth of caudal peduncle 3% in head ; subcaudal 

 height 5l^ its length, height uniform, length equals head to second 

 gill opening ; pectoral width 1% its length, which IV7 in head ; ventral 

 1% ; claspers V/s in ventral, edges smooth. 



Uniform light brown above, paler below. 



East Indies, Philippines, China, Northern Territory of Australia, 

 Queensland. Example in the Queensland Museum from Moreton 

 Bay. 



U.S.N.M. No. 32700. Batavia, Java. Royal Museum of Leiden. Length, 750 mm. 

 HEMISCYLLIUM PLAGIOSUM (Bennett) 



ScyUium plagiosum Bennett, Life of Raffles, p. 694, 1830 (type locality: Suma- 

 tra). — Andrew^ Smith, Proc. Zool. Soc. London, 1837, p. 85 (reference). 



ChiloscylUum plagiosum Muller and Henle, Syst. Beschr. Plagiostomen, p. 17, 

 1841 (Indian Ocean, Japan, "Brazil"). — Richardson, Ichth. China Japan, 

 p. 194, 1846 (China Sea, Canton). — Cantor, Journ. Asiatic Soc. Bengal, vol. 



