SCYMNORHINIDAE. 233 



Scales scattered small single prickles. Type I65 inches. 

 Uniform dark brownish, darker in front below; all fins more or less broadly 

 edged with white (young). 

 Misaki, Japan. 



Centroscyllium ornatum. 



Paracentroscyllium ornatum Alcock, 1889, Ann. mag. nat. hist., ser. 6, 4, p. 379; 1894, III. zool. Investi- 

 gator, pi. 8, f. 3. 



Centroscyllium ornatum Alcock, 1896, Journ. Asiatic soc. Bengal, 65, p. 308, 310; 1899, Dcscr. cat., p. 14; 

 1900, 111. zool. Investigator, pi. 35, f. 1; Regan, 1908, Ann. mag. nat. hist., ser. 8, 2, p. 41. 



Body subcylindrical; head broad, depressed; snout short, wide. Nostrils 

 large, near the edge of the snout. Mouth rather wide, crescentic. Teeth 

 small, tricuspid in both jaws. Eyes very large, length of orbit one fifth of that 

 from snout to pectorals, or four fifths of that of snout. Spiracles rather small. 

 Dorsal spines very strong and acuminate, the second nearly twice the size of the 

 first. From the figure the first dorsal spine appears to be above the inner angles 

 of the pectorals and the spine of the second dorsal close behind the axils of the 

 ventrals. Scales minute, placoid, a stelliform base from which rises a sharp 

 slender spine. The illustration is that of a robust bodied shark, with a caudal 

 of which the subcaudal portion has considerable depth but is without a produced 

 lobe, and of which the terminal portion is much elongated. The specimen 

 figured was nearly one foot in length. 



Black. 



Bay of Bengal 405-285 fathoms. Arabian Sea 690-620 fathoms. 



Centroscyllium granulatum. 



Centroscyllium granulatum GtJNTHER, 1887, Challenger rept. Zool., 22, p. 7. 



"Specifically, it must be very closely allied to Centroscyllium fabricii, 

 having the same disposition of the fins, size of teeth and dorsal spines, but the 

 epidermoid productions of the head and body are much coarser, and in the form 

 of granulations, whilst in Centroscyllium fabricii they are minute." 



Type 11 inches in length. 



Port Stanley, Falkland Islands, in 245 fathoms. Challenger. 



SCYMNORHINIDAE. 



Body subfusiform, cavity more than half of the total length. Snout sub- 

 conical. Eyes without a nictitating fold. Mouth transverse, with labial folds. 

 Teeth dissimilar in the two jaws; upper raptorial, lower sectorial. Spiracles 



