FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 431 



very well with my materials. Garman says with age "scattered 

 tubercles in the vertebral series. Large individuals have a more or 

 less complete median series, and have the tail roughened by small 

 spines." 



U.S.N.M. No. 50733. Onomichi, Bingo, Japan. Jordan and Snyder. Section of 



interocular region of skin, width, 66 mm. 

 U.S.N.M. No. 75871 and 75872. Japan ? P. L. Jouy. Length, 190-328 mm. 

 U.S.N.M. No. 75870. Japan ? P. L. Jouy. Length, 560 mm. 

 U.S.N.M. No. 51358. Kobe, Japan. Jordan and Snyder. Length, 730 mm. 



DASYATIS MICROPS (Annandale) 



Trygon microps AnnanUxVle, Rec. Indian Mus., vol. 2, p. 393, pi. 27, 1908 (type 

 locality: Bengal Bay off Chittagong, in 17 fathoms) ; Mem. Indian Mus., 

 vol. 2, p. 26, text fig. 1, pi. 2, fig. 3 (denticles), pi. 3, fig. 1 (mouth), pi. 4, 

 fig. 1, 1909 (types; off Orissa). 



Dasyhatus microps Gasman, Mem. Mus. Comp. Zool., vol. 36, p. 381, 1913 

 (copied). 



Snout 31^ to 41/2 in disk length, greater than interorbital, rounded, 

 with small terminal projection covered with enlarged denticles; 

 eyes very small, little prominent; mouth large, upper jaw slightly 

 undulated, lower not undulate; coarsely digitate cutaneous flap 

 hanging down from mouth roof ; usually 5 short fingerlike processes 

 on mouth floor, 3 in center joined together at base and one at either 

 side ; teeth white, transverse ridge very conspicuous in unworn teeth, 

 part anterior slightly concave and considerably greater in area than 

 that posterior, which convex. 



Skin soft and delicate, without enlarged tubercles on disk, bear- 

 ing numerous minute, spiny denticles, all with stellate bases; denti- 

 cles larger on snout tip and region around eyes and spiracles than 

 elsewhere, sometimes extending to ventral surface at pectoral edges. 

 Tail toward base with much larger denticles, which largest on sides 

 and only bear very short stellate spines on ventral surface; terminal 

 part densely clothed with denticles similar to but smaller than those 

 on sides of basal part. 



Tail without cutaneous fins, not longer than disk, with broad flat 

 basal part about half long as disk and slender cylindrical terminal 

 part of about same length, with single massive spine at junction of 

 2 parts ; very low ridge on ventral surface of terminal part ; pectorals 

 form rhombic disk, length little over 1^ in width, outer angles 

 rather greater than right angles. 



White, dorsal surface of disk suffused with rose pink, without 

 definite markings. Eyes dark. Tail gray above, becomes darker 

 terminally. Length, 3,170 mm. (Annandale.) 



India. 



