164 MEMOIRS OF THE CARNEGIE MUSEUM 



Described from a single specimen, female, from Takao ; length of disk eight and 

 one-fourth inches, width ten inches, tail seven inches. It is named for Dr. William 

 J. Holland, Director of the Carnegie Museum. 



Family DASYATIDvE. 



13. Dasyatis bennetti (Midler & Henle) (?). (Plate LXV.) 



(Trygon cornea Richardson, Ichth. Chin., 197, foetus.) 



One specimen from Takao with disk fourteen inches long and thirteen inches 

 wide, and tail thirty-one inches long, we refer provisionally to this species, which 

 was described from Hong Kong. Front margins of pectorals converging at an angle 

 of 65° ; sides of the short tip of snout meeting at nearly a right angle ; tail with a 

 low black cutaneous fold on under side, originating under the serrated spine and 

 extending backward a distance three times interorbital space ; a very short fold on 

 top of tail extending back of reflexed spine a distance equal to interorbital space; 

 top of tail for remainder of its length roughened by minute spine-like tubercles ; a 

 median dorsal row of short but strong spines originating behind gill-cavity and 

 reaching to base of serrated tail-spine ; many small tubercles on either side of this 

 row anteriorly; width of mouth contained two and one-half times in space between 

 anterior gill-openings; margin of nasal flap with a short fringe; color uniform 

 blackish above, pale below ; tail without bands. The tail is shorter than in Dasyatis 

 bennetti and the armature somewhat different. It. is questionable whether this 

 identification is correct and the species may be undescribed. 



FlQ. 2. nasyalia nknjei (Schlegel). (After Jordan and Evermann, Proc. U. S. N. M., Vol. 25, p. 319. 



