G14 PROCEEDINOS OF THE NATIONAL MUSEUM. vol.43. 



paxillae bear a central fasciculate or pectinate pedicellaria consisting 

 of 4 to 8 jaws considerably stouter, but not much longer, than the 

 regular spinelets. The median or outer admedian superomarginal 

 spine is usually the longest, about equaling the length of plate. The 

 lowest or next to lowest inferomarginal spine of the lateral comb is the 

 longest, or the 3 lowermost subequal, and equal to the length of 2^ 

 inferomarginal j^lates. Continuing this series along the distal margin 

 toward the inner end of the plate are proximally 4 or 5 and distally 

 2 or 3 sharp, appressed, flattened, much shorter spines. The surface 

 of the plate is covered with medium-sized, ovate, or obovate, imbricat- 

 ing, appressed squamules, with broad, rounded ends. They are spe- 

 cialized into a series of short, pointed spinules just adorally to the series 

 of lateral spines. Adambulacral plates separated by wide sutures; 

 furrow margin bearing a curved comb of 6 or 7 long, slender, com- 

 pressed round-or squarish- tipped spines, the central 2 or 3 slightly 

 the longest and with edge to furrow, the laterals with flat side thereto. 

 In the shape of the ray this species is like P. codocliiles, but lacks 

 the stout, erect, superomarginal spine, and has the abactinal plates 

 irregular along the radial line. The inferomarginal plates of euryactis 

 are wider, and in ccelocTiiles the second series of actinal intermediate 

 plates extends far along the ray. The accessory actinal infero- 

 marginal spines are lacking in codochiles. 



PERSEPHONASTER ANCmSTUS, new species. 



Similar to P. euryactis, but with slightly slenderer rays which taper 

 evenly on the outer part to an attenuate extremity; actinal infero- 

 marginal spines lacking except on the first few plates; superomarginal 

 spines lacking on first 3 to 5 plates, and distally 1 to 3 in number; 

 lateral comb of spines as in euryactis, but the second comb very poorly 

 developed, usually represented by a single spine, behind one of the 

 upper spines of the first comb; paxillse arranged as in euryactis and of 

 about the same size, but with slightly longer spinelets; abactinal 

 pedicellarise numerous, with jaws only slightly, sometimes not any, 

 thicker than the surrounding spinelets; subambulacral spines slightly 

 more numerous than in euryactis, in 2 or 3 longitudinal series. R = 1 43 

 mm., r = 34 mm., R = 4.2 r; breadth of ray at mid-interbrachium, 

 34 mm. 



Ti/pe.— Cat. No. 30521, U.S.N.M. 



Type-locality. — Station 5301, China Sea, vicinity of Hongkong 

 (lat. 20° 37' N.; long. 115° 43' E.), 208 fathoms, gray mud, sand; 

 bottom temperature, 50.5° F. 



PERSEPHONASTER LUZONICTJS, new species. 



Resembling in armature a short-spined variety of P. euryactis, but 

 with narrower, evenly tapered rays, much narrower paxillar area, 

 fairly large compact paxillse having slightly shorter spinelets, narrower 



