466 



( 



REMARKS ON NEW SPECIES OF CRINOIDEA, ETC. 



vertical sides from the central ridge. Each second radial bears two pieces of the free 

 rays. The rays again divide on the sixth piece above the second radials. The pieces 

 forming the rays are very rough, having a raised angular rib along the back of each, the 

 direction of which is alternately to the left and right, on the pieces forming the rays one 

 above the other. Each ray-piece bears two prism- shaped pinulge, not quite opposite to 

 each other, but alternately one a little above the other, one of the angular corners of the 

 prism forming the back of the pinulas. The junction of the rays with the pinulse is marked 

 by a prominent, triangular protuberance upon the ray-pieces immediately above the junc- 

 tion of the pinulas with it. There arc about twenty-six ossicular in each ray, and any one 

 of its branches. All the rays are equal. The ridges on the ray-pieces, with the angular 

 pinuke, and the zigzag arrangement of the ray-pieces, gives a very rough appearance to 

 the body above the calyx. 



Anal pieces: three are made out distinctly; the largest rests against the right side of 

 the subradial; it is five-sided, angular at the summit, resting between two subradial 

 pieces, and supports one large and one smaller anal piece of the second series, tin; small- 

 est of which rests on the summit of the left subradial. 



Proboscis : since the drawing was made ( Plate XXVII, m and m 1) I have removed part 

 of one of the branches of the ray (Fig. m), and uncovered between the main branches of 

 the ray down to tin; anal pieces, thus exposing to view a proboscis reaching nearly to the 

 top of the Fig. m. It is composed of a series of rather large pieces, in two adjacent rows, 

 interlocking with each other by angular points at the ends of the pieces. The pieces are 

 marked by prominent ridges, most strongly developed at their margins ; composed of about 

 five rows of pieces. 



Column round, covering the basal pieces, which are unknown. 



Size of Specimen. 



Length of specimen, .... 



Eeight of calyx, 



Diameter of calyx (approximately), . 



Length of free rays to first bifurcation, 



INCHES. 



1.32 

 .34 

 .42 



.42 



Locality and Position.— Found in sandy mud-stones, near the upper part of Safford's sillicious group 

 of the subcarboniferous rocks. It is rather rare. Our specimen is crushed. 



