A 
C 45 3 
Five double rays (each couipofed of two rows 
of very fmall holes) proceeding from the center 
of the top of the fhell, to a fmall aperture in the 
bafe : near the center of the top of the fhell is a 
fmall aperture, from which to the margin there 
is a broad channel: the bafe is a little concave ; 
the aperture in it is not in tlfo-center. 
Not uncommon upon the ploughed fields near 
the brow of the hills; and in the gravel and ftone- 
plts. 
ASTERIA COLUMNARIS. 
F I G. LX. A 
StarP.onc. Cylindrical, but pentangular, often 
crooked; a cinquefoil at each end compofed of 
very fhort tranfverfe ridges: it confifls of feve- 
ral joints: a piece of fourteen joints is exaBly an 
inch long. Single joints are fometimes found. 
Pieces about an inch long are not uncommon 
in the lime-ftone quarries near the upper Briflol 
road* 
The animal to which this belongs is found 
recent on the coart of Rarbadoes: Mr. Ellis has 
given 
