206 NATUEAL HISTOEY BULLETIN 



pressed and slightly recurved ; outside of this are two other spines 

 equally compressed, nearly straight, and placed a little obliquely, 

 one behind the other. Outside of these are two or three smaller 

 and more slender spines. Some of the plates bear papilliform 

 pedicellarige with three valves. 



The two specimens figured by Perrier (1884) have five rays. 

 The largest one of his types, when examined by me (1896) had 

 six broken rays. It was from station 274, off Barbados, and is 

 probably the one described by Perrier. 



It was taken by the Blake at four stations, in 40 to 209 fath- 

 oms, mostly off Barbados. 



The color, in life, appears to have been red. 



A specimen from the Albatross collection (No. 10,449; see pi. 

 xxiv, fig. 1) has six rays, but all of them had been broken off near 

 the disk and are in process of restoration, giving it the appear- 

 ance of having six short, rapidly tapered and acute rays. The 

 original parts agree very well with Perrier 's types and descrip- 

 tion. Radius of the disk 10™™; of the rays, as repaired, 35 to 

 52™™. 



On the repaired portions of the rays the dorsal paxillae are 

 smaller than on the old part, and have fewer spinules, but are 

 otherwise similar. On the old parts the four outer rows of pax- 

 illge are distinctly larger than the others, but not equal among 

 themselves. Those of the outer row are roundish with a convex 

 rosette of about ten to twelve rather stout, clavate spinules, one 

 to three being central, besides a large number of marginal slen- 

 der, fasciolated spinules. Those of the second row are trans- 

 versely a little oblong, with sixteen to twenty similar spinules on 

 top, in two series, in rosette form. Those of the third row are 

 more nearly square with about twelve to sixteen spinules in the 

 rosette. Those of the fourth row are somewhat smaller and have 

 about twelve to fourteen spinules in the rosette. Those of the 

 fifth row are decidedly smaller, nearly round, and more like those 

 of the median area. They mostly have a regular, round, terminal 

 rosette of seven to nine spinules, of which one or two are cen- 

 tral. On the median area they become still smaller, with fewer 

 spinules, and are crowded irregularly, with papulae between 

 them. On the repaired parts the outer row of paxillge usually 

 has the largest rosettes. 



