112 
(ECONOMY' 
that the pinna kept a guard to watch for hen 
That there grew to the mouth of the pinna 
a fmall animal, having claws, and ferving as 
a caterer, which was like a crab , and was called 
th e pinnophylax. Piin.lib.9. 51. fays, the fmall- 
eft of all the kinds is called th zpinnoteres, and 
therefore liable to injury ; this has the prudence 
to hide itfelf in the ftiells of oyfters . Again lib. 
9. 66. he fays m the pinna is of the genus of 
fhell-fifli ^ it is produced in muddy waters, 
always eredt, nor ever without a companion, 
which fome call the pinnoteres , others the 
pinnophylax . This fometimes is a fmall f quill , 
fometimes a crab , that follows the pinna for 
the fake of food. The pinna is blind, and 
m This is taken out of Aridotle, who feems to have 
thought, that the pinna grew from that which really is its 
beard, and which it throws out upon the adjoyning bodies 
in order to fix itfelf. „ For he fays the pinna is produced 
from the byfius, which is generally fuppofed to mean the 
beard of this fhell-fifh, and to have been ufed for making 
the fined of duffs, frequently mentioned by antient writers 
under the name of Byffine garments, and of which they 
now in fome countries make dockings as i am informed. 
This notion of the pinna growing from the byffus or beard 
is of the fame kind with that which prevailed formerly in 
relation to the goofe tree, mentioned by many writers, of 
whom a long lid may be feen in the tenth edition of the 
Syd. Nat. 
3 
when 
