22 



other regular area there are four plates, one in the first range, two in 

 the second and one in the third, which unites with the plates of the 

 vault. In the azygous area there are seven plates. The first one is 

 in line with the first primary radials and about the same size. It is 

 followed by three plates in the second range and. three in the third 

 range, the middle one of which connects with the plates of the vault. 



The vault is conical and bears a large central proboscis. It is 

 covered with numerous convex polygonal plates. 



This species, no doubt, has some affinity with B. verneuilianus, 

 but not much with any other fourteen-armed species. In general 

 appearance it does not bear much resemblance to B. verneuilianus, 

 because the form and proportion of the plates are so different; be- 

 side the interradial areas and number of interradial plates are dif- 

 ferent and the number of secondary and tertiary radials do not 

 agree, though each has fourteen ambulacral openings to the vault. 



Found by R. A. Blair, in the Burlington Group, near Sharon, in 

 Southwest Missouri, and now in the collection of S. A. Miller. 



BATOCRINUS RELIQUUS, 11. sp. 



Plate I. Fig. 1~>, basal view; Fig. 16, azygous side; Fig. 17. sum- 

 mit view. 



Species below medium size, biturbinate or somewhat wheel-shaped. 

 Calyx very rapidly spreading at the arms, where it is more than 

 twice as wide as high. No radial ridges, but the radial series are 

 somewhat lobed and project at the margin so as to notch the cir- 

 cumference at the interradial parts. Plates finely granular, the 

 larger ones slightly convex. Ambulacral openings directed hori- 

 zontally and not visible in a basal view. No ovarian pores discovered. 



Basals form a very short rapidly expanding cup four times as wide 

 as high. No basal rim. First primary radials larger than the sec- 

 ond and third together, three hexagonal, two heptagonal. Second 

 primary radials quadrangular, two or three times as wide as long. 

 Third primary radials a little larger than the second; each one of 

 them is hexagonal, axillary, and in each of the lateral rays and in 

 the ray opposite the azygous area support, on each upper sloping 

 side, two secondary radials, which gives to each of these three 

 rays two arms. In the ray on each side of the azygous area 

 the third primary radial supports, on the distal side, two secondary 

 radials, and on one of the proximal sides two secondary radials, the 



