FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 363 



Arabian Sea. According to Lloyd the consistency of the whole 

 body soft and flabby and when taken from the trawl it was rolled up 

 in a cylindrical posture. 



RAJA ATRIVENTRALIS Fowler 



Figure 11 



Raja atrircvfralis Fowler, Proc. Acad. Nat. Sci. Philadelphia, vol. 85, p. 241, 

 fig. 5, 1933 (type locality: Japan). 



Depth 15% to 163/5 to end of tail; head ^% to 43/5; disk length 

 ly^ to 11/4 in its width; tail little shorter than disk length. Snout 

 1% to 1% in head, tip little produced and end rounded; eye 8% to 



Figure 11. — Raja atriv entrails Fowler: Type (U.S.N.M. No. 75876). 



9, 5% to 5% in snout, 3 to 31/5 in interorbital ; dentary width 2 to 

 2% in head; teeth in 48 (38) rows above, 44 (34) rows below, in male 

 each with narrowly triangular and moderately long cusp, in female 

 much lower, obtuse and with only low rudiment of cusp; nostril 

 moderate, internarial space 1% in dentary width, sections of outer 

 valve subequal ; interorbital 2% to 3 in head, broadly concave. Gill 

 openings small, equidistant, subequal or last little shortest. Spi- 

 racle transverse, equals eye, front inner edge with fringe of small 

 papillae. 



Skin smooth. In male row of small thorns at front of eye con- 

 tinued over supraorbital ridge back to spiracle, at occiput 2 thorns, 

 on tail median vertebral row of 24 thorns to first dorsal and 3 in 

 interdorsal with row of larger ones each side irregularly ; 4 rows of 

 erectile spines on each outer portion of pectoral; tip of snout both 



