STARFISHES OF THE PHILIPPINE SEAS. 239 



Adambulacral plates with a slightly angular furrow margin, bear- 

 ing 6 or 7 short, blunt, robust spines, the mesial often slightly com- 

 pressed, the others irregularly 4-sided in section and stouter. The 

 distal edge of the comb is convex. Along the transverse margin of 

 the plate are 3 to 6 short granules, often pressed against their fellows 

 of the adjacent plate. One or 2 sharp tapering appressed spines, 

 similar in form and size to those of the actinal intermediate plates, 

 stand on the actinal surface, surrounded by 5 to 8 elongate sub- 

 conical granules, or short, robust spinelets, with 3 or 4 spaced 

 granules on the outer margin. About 3 subambulacral spinelets 

 longer than the rest often form a series spaced from and parallel 

 to furrow series, between it and the subambulacral spines. The plates 

 are slightly wider than long, the first 3 or 4 being decidedly wider 

 than long. 



Mouth plates narroAv with 4 or 5 short, sharp, furrow spines, in- 

 creasing in size toward the median unpaired tooth. Following the 

 margin adjacent to first adambulacral plate are 9 or 10 spines, which 

 are soon reduced to granules on the outer part of plate, while close 

 to them about an equal number follow the median suture margin, 

 becoming enlarged into sharp spines at the inner end of the plate 

 near the furrow spines, between which and the superficial spines 

 there is a row of 3 or 4 intermediate spines. 



Madreporic body rather small, crowded between the pedicels of 

 plates and nearly hidden, situated a little over a third the distance 

 from center to under edge of superomarginals. 



Gonads in a single tuft on either side of the interbrachial septum, 

 near the margin. Superambulacral plates present, touching the 

 lower end of the ambulacral plates, the rest of the plate lying upon 

 the actinal intermediates. 



Type.—Ciit. Ko. 30538, U.S.N.M. 



Type-locality. — Station 5113, Balayan Bay, southern Luzon, 159 

 fathoms, dark green mud. 



Distribution. — Balayan Bay, Luzon, to Mindanao Sea, 159 to 254 

 fathoms on dark green mud; bottom temperature 50.2° to 53.5° F. 



Specirnens examined. — Six, the type and 1 from each of the fol- 

 lowing stations: 



Station 5116, mouth of Balayan Bay, Luzon, 200 fathoms, bottom 

 not recorded, bottom temperature 50.2° F. 



Station 5118, Balayan Bay, Luzon, 159 fathoms, dark green mud. 



Station 5363, Balayan Bay, 180 fathoms, bottom not recorded. 



Station 5530, between Siquijor and Bohol [mistake in labeling, as 

 this was an intermediate haul]. 



Station 5537, between Negros and Siquijor, 254 fathoms, green 

 mud, bottom temperature 53.5° F. 



