CCEL0PLEUR1 S FLORIDANUS. 23 



Podocidaris scutata a. Aq. 



Podocidaris Bcutata A. AG. Hull. M. ( . Z . \ III., N ... -'. p. 72, 1880. 

 ( ill' Santa ' Iruz. 580 fathoms. 



Only one specimen of tin's species was collected. It is much larger 

 than either of the others of the genus. Test depressed, remarkable for 

 its large abactinal system. The whole abactinal Burface of tesl covered 

 by small, distant, fine, slender fixed spines contrasting with the correspond, 

 ing coarse granulation oiP.sculpia; fewer large primary tubercles close to 

 the ambitus on the actinal surface. ActinaJ membrane entirely covered by 

 prominent imbricating plates; five anal plates, as in P. prwmgera, to which 

 it is most closely allied. Tes1 light grayish brown when alive. 



Ccelopleurus floridanus A. v 



Lat. 23° 52' X., I g. 88° 5' W. West [ndia [slands, — Barb 



abundant from LOO-200 fathoms. 

 For other localities, see Bull. M. C. V... V. So. 9, p. 188, L878; VIII., N... 2, p. ;:;. 1380. 



PI 17/.. /'/. VIII. 



Many of the specimens of this species dredged in the Caribbean, off the 

 Windward Mands, are much larger than the small specimens from which the 

 species was firsi described. (PL VII. Fig. !.: PI. VIII. Figs. 1-6.) Quite a 

 number of specimens measured L8 mm. in diameter and a few 28 nun. This 

 species, however, does aol seem to attain the size of the large 0. Maillardi. 



When alive it is mosl brilliant!) colored, the test varying from a rich light 

 chocolate in the interambulacra to the brilliaiH orange or yellow ambulacral 

 are as. The primary radioles vary greatly in color, from a delicate straw. 

 often ncarlv white, to a bright carmine or orange the base of the spines 

 being usually colored and the shaft more or less irregularly handed. 



On Plate VIII. are given figures of specimens of differenl sizes, show- 

 ing the changes they pass through due to growth. The larger specimens 

 (PL YIII. Figs. L-6), when compared with specimens of C. Maillardi >>l' the 

 same size, show that the Florida species differs from it in having a larger 



anal system, in the shape of the genital and oeular plates, which LS quite 



different, being nearly triangular in the Florida species, in having a much 



wider hare int eramhulaeral area, and comparatively larger primary ami. li- 

 beral tubercles, concentrated nearer the ambitus; these tubercles do not 

 extend to the genital ring, as they do with C. Maillardi in specimens of the 

 same size. 



