F. B. Meek—Descriptions of new Silurian Fossils. 277 
tions to Paleaster granulosus of Hall; and yet a critical compari- 
son with his description (he has not yet published a figure of that 
Species), leads me to think it most probably distinct. It has about 
the same proportional length and breadth of rays; but instead 
-eight marginal and 
le 
; s 
thirty-two adambulacral pieces on each side—the number of 
to call it Paleaster speciosu 
RHYNCHONELLA NEGLECTA, var. SCOBINA. 
Shell rather small, sub-trigonal, compressed, or sometimes in 
TS ite gibbous, with the mesial fold very 
prominent and narrow. Dorsal valve bearing on the mesial 
fold four plications, the middle two of which are more prot 
one of which latter occupies 
each provided with about 
