Indian Deep-sea Asteroidea. 95" 



The marginal plates are large and rectangular and are 

 uniformly covered with small granules, without anj other 

 armature ; many of them bear an entrenched pedicellaria, 

 found only on denudation ; they number about twenty-two in 

 each series, which correspond plate to plate ; the supero- 

 marginals do not meet across the ray even at its very tip. 



The adambulacral plates have a pectinate furrow-series of 

 seven to eight long iine spinelets of nearly equal size, the 

 proximal (adoral) one of the series alone being diminutive, 

 and actinally a row of from three to five papillary spinelets, 

 and outside these a row of four or five granules. Mouth- 

 plates small, the conjoint pair nearly circular in outline, the 

 armature hardly differing from the adambulacral type except 

 that the granules are more numerous. 



Actinal interradial areas large, each area carrying about 

 sixty irregularly quadrangular plates arranged in chevron 

 series ; all of these plates are granular like the marginal 

 plates, and many of those nearest the ambulacrum have an 

 entrenched pedicellaria. 



Madreporiform plate small but conspicuous, placed very 

 much nearer to the centre than to the margin of the disk. 



The papulaj are found only in the rosette of the abactinal 

 surface, where they stand with great regularity at the angles 

 of the hexagonal plates. 



xVndaman Sea, 180 to 250 fathoms. 



This species much resembles Nymphaster hipunctu.ty 

 Sladen. 



Jn young specimens R = about 2*2 r, the interbrachial arcs 

 are not so wide as they are in the adult, the apical plates are 

 conspicuously large, and the marginal plates number eight or 

 nine in each series. 



28. Ni/mphaster ji^'otentuSj Sladen. 



Nyv}p/iaster jjrotentns, Sliidtm, 'Challenger' Asteroidea, p. 303, pi. 1. 

 tigy. 3 and 4, pi. liii. figs, t) and 10. 



Andaman Sea, 220 to 250 fathoms. 



29. Nympliaster basilicus^ Sladen. 



Nymphaster hasUicus, Sladen, * Cliallenger ' Asteroidea, p. 308, pi. Ivii. 

 tigs. 8 and 9. 



Two fine specimens, one from the Laccadive Sea, 

 1370 fathoms, coral-mud, the other from the Gulf of Manaar, 

 597 fathoms, green mud. 



This species, as Mr. Sladen observes, appears to be very 

 near Dorigona (ernalis, E. Perrier. 



