NO. 1944. NEW OENERA AND SPECIES OF STARFISHES— FISHER. 601 



7 in number, and higher than inferomarginals. Terminal plate 

 with 5 terminal, prominent, sharp spinules. Adambulacral plates 

 with 2 marginal spinules, occupying about the adoral half of the 

 concave furrow margin. Mouth plates with 4 tapering, sharp 

 marginal spines spaced from the unpaired median tooth. 



TyjM.— Cat. No. 30504, U.S.N.M. 



Type-locality. — Unkno\Mi, but probably among the Philippine 

 Islands. 



CTENODISCUS ORIENTALIS, new species. 



Differs from Ctenodiscus crispatus in having longer and relatively 

 much more slender rays, on which the paxillar area is very narrow; 

 constantly very small paxilla?; very much more numerous marginal 

 plates; lower inferomarginals, of which the whole exposed surface 

 is confined to lateral surface of ray; very delicate, and not at all 

 flattened fasciole spinelets; smaller and more numerous actinal 

 plates in each corresponding double series; differently shaped and 

 more angular adambulacral plates, with a different armature; madre- 

 poric plate with finer and more numerous ridges. R = 52 mm., 

 r=14 mm., R = 3.7 r; breadth of ray at middle of R, about 10 mm. 

 Marginal plates 26 or 27 in each series. In each double series of 

 actinal intermediate plates nearest interradial line, 16 to 23 plates 

 (8 to 12 in a smgle series). In crispatus 16 plates is the maximum 

 number. Adambulacral plates with the aboral half of furrow 

 margin excavated to receive the tube foot, the adoral half being 

 prominent and angular, with 3 tapering, sharp spinules, the median 

 the longest, proximally equaling width of plate, distally exceeding 

 width. One or 2 smaller spinelets contmue the furrow series along 

 the concave portion of margin, and directly behind these on the 

 surface of plate is a conical hyaline spinelet stouter and shorter than 

 the furrow spinelets, except on the first 5 or 6 plates where it is more 

 delicate than the furrow spinelets. Mouth plates with 4 or 5 mar- 

 ginal and 5 to 8 suboral spinelets. 



Type.— Cat. No. 30505, U.S.N.M. 



Type-locality. — Station 5528, between Siquijor and Bohol Islands, 

 Philippine Islands, 429 fathoms, globigerina ooze; bottom tempera- 

 ture, 53.3° F. 



Family GONIOPECTINIDiE. 



GONIOPECTEN ASIATICUS, new species. 



Differing from G. deinonstrans in having a complete series of spines 

 on both supero and inferomarginal plates and open cribriform organs 

 between the proximal marginals. R, = 135 mm., r = 27 mm., R = 5 r; 

 breadth of ray at base, 31 mm. Disk moderate; rays long, robust, 

 with vertical sides. Marginal plates massive, with fasciolar grooves 

 containing cribriform organs, these proximally open as in Porcel- 



