STARFISHES OF THE PHILIPPINE SEAS. 93 



or 5 plates seem to lack spines, A specimen from station 5392 has 

 usually but 1 spine on the angle between the lateral and dorsal 

 facets of the plate, except on the first 2 and last 4, where there 

 are none; a few plates have 2, and the spinelets are not so granuli- 

 form on the central area as in type. Terminal plate wider than long, 

 with a notch at the distal and proximal border, connected by a 

 shallow sulcus. 



Inferomarginals in general similar to those of A. ludwigi, the 

 actinal surface proximally about as wide as length of 3 plates, the 

 width gradually decreasing until distally it equals length of 2 plates. 

 The rounded outer end of the plate bears, as in licdwigi, an oblique 

 appressed vertical comb of 4 closely placed, slender, sharp, slightly 

 flattened spines, the lowest or sometimes the next to lowest the longest 

 and a little over one and a half plates in length, the uppermost about 

 half to two-thirds as long. This comb is precisely similar to the 

 lateral comb of Persephonastcr. On the actinal surface of the plate 

 and near the aboral margin, well spaced from the lateral comb, are 

 proximally 2 flattened, appressed, sharp, well-spaced spines, varying 

 from two-thirds to three-fourths the length of the longest lateral 

 spine. On the outer half of the ray there is one only, about halfway 

 between the inner end of the plate and the lower end of lateral comb. 

 In one of the specimens from station 5392 there is but one actinal 

 spine throughout the ray. The surface of the plate is covered with 

 obovate spatulate squamules, usually round tipped, but becoming 

 pointed at the base of the lateral comb. 



Actinal intermediate plates extending to the fourth inferomarginal 

 in type, there being 7 or 8 plates in a single row on each ra3\ The 

 plates are covered with slender papilliform spinelets and 1 to 4 in 

 each series has a central lanceolate appressed spinule. Occasionally 

 the proximal plate bears a fasciculate spiniform pedicellaria. 



Adambulacral armature very similar to that of C. ludwigi. Plates 

 wider than long, placed obliquely, and with a salient furrow angle, 

 bearing usually 4 strongly flattened furrow spines, the median 

 tapering slightly and with its edge to the furrow, but the later- 

 als truncate, and usually decidedly broader at the apex than base. 

 The second to eighth plates are fewer, have 5 furrow spines, 

 and in 1 specimen occasionally 6. Most of the plates of the type 

 have 4 furrow spines, the laterals successively slightly shorter 

 than the median. When there are 4 spines, 1 lateral is aboral 

 to the apex spine and 2 adoral. On the outer third of the ray 

 the adoral spine sometimes stands slightly back from the margin, 

 leaving 3. In a specimen from station 5392 rather more of the 

 proximal plates have 5 or 6 furrow spines than in the type. Sub- 

 ambulacral spinelets subequal, slender, proximally 12 to 16 (excep- 

 tionally a feAv more) and distally 8 or 10, varying slightly on either 



