5H 



would have been especially useful to our similarly arranged 

 species, whose rays are soldered together by the intercalation of 

 three stories of intermedial and interbrachial fields. 



"Our figures are drawn the size of nature from the largest 

 perfect specimens that have come under our notice; fragments 

 have been found of larger individuals. 



"Geological position and Iccalify. Rare in the beds of the 

 subcarboniferous limestone near to the top of the Knob sand- 

 stone, Clear Creek, Hardin county, Kentucky. Also in the 

 same beds in Washington and Montgomery counties, Indiana. 

 Vertical range unknown; it is probable that it is quite limited." 



We are inclined to believe that the species was collected in 

 Hardin county, Kentucky. We have not found it in Indiana. 



FORBESOCRINUS JEKSEYENSIS, n. sp. 



Plate IV, Fig. 2, azygous side of a compressed specimen; Fig. 3, 

 opposite side of same, but the overlapping middle part of 

 the plates has been more or less eroded. 



Species large; plates moderately convex; middle part of the 

 plates overlap the inferior plates, but where eroded the sutures 

 appear to be nearly transverse. Calyx constitutes full two- 

 thirds of the body and is about as wide as high. Interradial 

 areas slightly depressed. Arms slowly contract; they are long 

 and slender above the tertiary series and are infolded at the 

 ends. Column tapers rapidly below the calyx, where it is 

 composed of very thin plates. 



Basals within the calyx. Subradials small. Primary radials 

 four in each series, between two and three times as wide as 

 long, the last ones are axillary and support upon each upper 

 sloping side the secondary radials. There are three secondary 

 radials in each series. They are somewhat shorter and nar- 

 rower than the primary radials. The last- ones are axillary 

 and support, upon the upper sloping sides, the tertiary radials. 

 The tertiary radials vary, in number, in the different rays from 

 five to eight. In the proximal series, on the left of the azygous 

 area, there are eight plates, and in the next series five. In 

 the proximal series on the right of the azygous area there are 

 seven plates, and in the next series five. In each ray there 

 are four to six tertiary plates in the proximal series and seven 

 or eight in the distal series. The last tertiary radials are 

 axillary and the proximal rays do not divide, but each distal 

 quaternary series bears an axillary plate and supports the 

 fifth series on each of its superior sides. The number of 



