,364 ON SHARKS OF THE FAMILY ORECTOLOBID.E. [Apr. 28, 



Squalus fasciatus Bloch, Ausl. Fische, pi. cxiii. (1795); 

 Schneid. Bloch's Syst. Iclith. p. 130 (1801). 



ScylUmii heptagommi Riipp. Nene Wirbelth., Fische, p. 61, 

 pi. xvii. fig. 1 (1840). 



Stegostoma fasciaium Miill. & Henle, Plagiost. p. 25, pi. xvii. 

 (1841); Cantor, Cat. Mai. Fish. p. 396 (1850); Bleek. Verh. Bat. 

 Gen. xxiv. 1852, Plagiost. p. 23 ; Dumeril, Elasmobr. p. 336 

 (1865) ; Giinth. & Playfair, Fish. Zanzibar, p. 140 (1866) ; Klunz. 

 Fische Roth. Meer. p. 672 (1870). 



Stegostoma carinatum Blyth, Journ. As. Soc. Bengal, xvi. 

 .1847, p. 725, pi. XXV. 6, fig. 1. 



Squalus cirrosus Gronov. Syst. p. 6 (1854). 



Stegostoma tigrinum Giinth. Oat. Fish. viii. p. 409 (1870); 

 Day, Fish. India, p. 725, pi. clxxxvii. fig. 4 (1878). 



Three dorsal keels, as in Ghiloscyllium indicum, more prominent 

 in the adult than in the young ; adults also with a pair of lateral 

 keels. Mouth a little nearer to the vertical fi-om the eyes than 

 to the end of snout ; fold of lower lip broadly interrupted ; nasal 

 cirrus extending to the edge of nasal valve. First dorsal rather 

 elongate, gradually increasing in height posteriorly and ter- 

 minating above the end of base of pelvics ; free edge convex, 

 angles rounded ; second dorsal originating directly behind the 

 first, tei-minating above the middle of anal. Caudal as long as 

 the rest of the fish. Pectoral nearly reaching the origin of 

 pelvics. Young with broad dark brown cross-bars with blackish 

 margins, wider than the pale yellowish interspaces; during 

 growth the bars become paler and dark spots appear on them, 

 whilst the dark edges of the bars break up into spots; adults 

 without bars, with numerous vertical series of dark rounded 

 spots. 



Indian Ocean ; East Indian Archipelago ; China. 



1-2. (1120 and 750 mm.) Zanzibar. Lieut-Col. Playfair. 



3-4. (650 and 420 mm.) Formosa. R. Swinhoe, Esq. 



5. (300 mm.) Rejang R., Sarawak. B. Low, Esq. 



6. (200 mm.) N.W.Australia. Capt. I). Le Sauvage. 



In addition to the specimens listed above, on which my de- 

 scription is based, there are some large stufied examples from 

 India {Jerdon), Ceylon {Zool. Soc), and Zanzibar {Flay/air). 



EXPLANATION OP THE PLATES. 



PlATE XI. 



Pig. 1. Gliilosci/llitim griseum. 



2. Oreetolohus ornatus ; 2 a, liead seen from below. 



Plate XII. 



Pig. 1. Chiloscyllium plagiosum. * 



2. Oreetolohus teataculatus ; 2 a, head seen from below. 



Plate XIII. 



Fig. 1. Chiloscyllium griseum. 



2. C indicum ; 2 a, head seen from above ; 2 h, from below. 



