WEST INDIAN STARFISHES 



93 



radial rows; closely granulated. Papulae are numerous, in 

 clusters on the dorsal side, but are lacking below the marginal 

 plates. 



LiNCKiA NODOSA Perrier. 



Linclcm nodosa Perrier, Eevision, p. 417, 1875; Etoiles des Mer, p. 226, 

 1884. Sladen, Voj. Chall., pp. 409, 786, 1889. Fisher, op. cit., 1906, 

 p. 1088. 



Plate xiii; figures 2 — 2a. Plate xxix; figures la, lb. 

 The type of this species had the radii 11°"^ and 91°^ ; ratio, 

 1 :8.3. 



The dorsal plates form about three irregular crowded rows; 

 some of these plates, irregularly disposed, are larger and more 

 convex than the others, or even subnodose ; similar swollen plates 

 also occur upon the disk. 



The papular areas are small and well defined; they mostly 

 have six to eight pores; fewer on the disk. Madreporic plate 

 large, flat, with numerous fine, sinuous gyri. 



The marginal plates are squarish, covered with granules a 

 little smaller than those of the interactinal plates; between the 

 two rows are roundish papular areas, with about twelve pores. 



There are several rows of interactinal plates proximally, the 

 inner ones short; the outer or peractinal row extends nearly or 

 quite to the tip of the rays. These plates are all covered with 

 small rounded granules, those near the adambulacral plates are 

 a little the larger. 



The adambulacral spines are almost granuliform; they form 

 two rows ; those of the margin of the groove are alternately larger 

 and smaller ; the larger are clavate, the smaller cylindric. Close 

 to these are the spines of the outer row ; each of these is opposite 

 one of the smaller spines of the inner row ; they are rather larger 

 than the larger of the inner row. External to these spines is a 

 row of granules larger than those of adjacent plates and also 

 some intermediate small granules. There are no actinal papular 

 pores. 



A larger specimen before me was taken by the Albatross off 

 Pensacola, Fla. The radii are 13°^°^ and 125°^°^ ; ratio, 1 :9.6. 



The rays are well rounded above, flattened below, and taper 

 very gradually. 



