STARFISHES OF THE PHILIPPINE SEAS. 343 



granulate and covered with thin soft membrane, leaving each plate 

 distinct; abactinal plates, not elevated, flattish, numerous, extending 

 to tip of ray; papulae in radial petaloid areas; adambulacrals with 

 an angular furrow series of rather short, stout, spinelets and sub- 

 ambulacral granules, actinal interradial areas large; disk large and 

 thin, rays slender. Entrenched small upright two- jawed pedicel- 

 lariae on abactinal, marginal, actinal intermediate, and adambula- 

 cral plates. No specialized spines; the furrow spinelets the only ones 

 present. 



ATELORIAS ANACANTHUS Fisher. 



Plate 73, fig. 2 ; plate 74, fig. 3 ; plate 85, fig. 3 ; plate 94, figs. 3, 3(J-Z>. 

 Atelorias anacanthus Fisher, 1911, p. 424. 



Diagnosis. — Rays 5. E=205 mm., r=43 mm., R=:4.76 r; breadth 

 of ray at mid interbrachium, 53 mm., at middle of R, 14 mm. Disk 

 large, thin, with wide interbrachial arcs. Rays very long, slender, 

 thin, with an angular margin formed entirely of superomarginal 

 l^lates. No specialized spines: all plates covered with hemispherical 

 granules overlaid by a thin membrane which partly or wholly ob- 

 scures them and fills up the interstices, but which leaves the outlines 

 of plates distinct; small excavate pedicellariae with tw^o jaws slightly 

 higher than wide, and usuallj^ with depressions in the membrane 

 into which they fit when open, are present on plates of both surfaces ; 

 adambulacral plates with angular furrow margin bearing proximally 

 10 to 12 and distally 6 to 9 rather short stout spinelets ; no subambu- 

 lacral spines, but numerous immersed granules. 



DescHption. — Abactinal plates numerous, crowded, very slightly 

 convex or flat, hexagonal on papular areas, but elsewhere irregu- 

 larly hexagonal, pentagonal, squarish, or roundish, and reaching ter- 

 minal plates. They are not at all tabulate but are sunken in the 

 abactinal integument nearly flush with the surface. On the proximal 

 part of the radial areas a carina! series and about two parallel series 

 on each side can be made out, but elsewhere the plates are not regu- 

 larly arranged. They are much smaller on the interradial areas and 

 center of disk than on the radial areas, and they decrease in size 

 distad, only a single series reaching the terminal plate. On the 

 outer part of the ray the outlines of the plates are very indistinct., 

 Papulae 5 to 8 about each plate, and inconspicuous, extending only 

 about a fifth the length of ray measured from the interradius. All, 

 plates covered with rather small hemispherical granules, overlaid by 

 soft membrane, a rather large carinal plate having 30 to 40. In 

 addition most of the plates bear also a small upright pedicellaria 

 with tapering spatulate jaws, often narrow distally, and a little 

 higher than the width of the base. The granules are quite indistinct 

 and normally are entirely covered by the membrane. On some of 



