274 s. goto: 



" Station 88. Vizagapatam. 4 miles au S.E. de Maiirawalipiir. Pro- 

 fondeur 9-13 brasses. Un écliantillon. 



"R=16mm." 



KœhIxER also mentions it from the south-eastern Moluccas [ : 11, p. 268] : 



" Dragage No. 15. 15 Avril 1908. Sungi Barkai. Profondem- 7 à 8 m. 

 Un échantillon. R = 28mra. ; r=:9mm." 



Psilaster gracilis Sladen. 



This species is not contained in any of the collections studied by me. 

 Sladen's original description is reproduced below [ '89, p. 230] : 



" Psilaster gracilis, n. sp. (PI. XLI. figs. 5 and 6 ; PI. XLII. figs. 9-11). 



"Piays five. R = 65mm. r=::r2mm. Il<5.5 r. Breadth of the ray at 

 the tliird supero-marginal plate, 11.5 mm. 



" Rays elongate, narrow and tapering throughout to a finely pointed extre- 

 mity, having a subcyhndrical facies, shghtly compressed. Abactinal area slight- 

 ly convex and capable of inflation. Actinal area subplane. Lateral walls 

 comparatively high and vertical. Interbrachial arcs open and widely rounded. 



"The abactinal paxillar area of the disk and rays is covered with com- 

 paratively large and closely placed paxiUae. These are composed of very- 

 short, stumpy, papiUiform spinelets. Tln-ee to five are central, more robust 

 than the rest, often almost gi-anuliform, and about a dozen or more form 

 the marginal series, aU very short and radiating outward. In some of the 

 paxill89 the central spinelets are x^osed in such a way as to form incipient 

 pedicellarise, in others three or fom' of the central spinelets are shghtly 

 longer, and are distinctly pedicellarian in function. At tlie margin of the 

 area an arrangement of the paxillss in transverse series may be observed, 

 but is not very conspicuous at first sight, on accoimt of the crowding of the 

 Xîaxillœ, and is only well seen near the base of the rays. 



" The supero-marginal plates, thirty-six in number from the median 

 inten-adial line to the extremity, stand vei-tically, and, being confined en- 

 tirely to the lateral wall of the ray, can hardly be said to have a distinct 

 breadth on the abactiual area, excepting on the outer part of the ray, as 



