SANDY ALCYONIUM. 
Generic Character. 
Animal (commonly) growing in the form of a 
plant. 
Subjlance more or lefs flefhy, gelatinous, fpongy, 
or coriaceous: befet with polype-cells. 
Specific Character. 
Flat fandy ALCYONIUM of a femi-circular 
form. 
Horfe-fhoe MILLEPORE, 
Englifh fandy MILLEPORA. 
Ellis cor dim. p. 74. 
I have not the flighteft hefitation in ranking this 
curious fubftance under the genus Alcyonium, rather 
than that of Efchara, in which it is placed by Pallas, 
of Millepora, in which it is ftationed by Ellis? or 
laftly, in that of Fluftra, in which it is arranged 
by Gmelin in his enlarged edition of the Syftema 
Naturae of Linnaeus. It is reprefented in its natural 
fize, and is generally found attached to the roots of 
the 
