THE 
MURICATED PINNA. 
e deieleitet-eletdeletetMieieteiMdteteiMeieieiHro 
GENERIC CHARACTER. 
Animal allied to a Limax. 
Shell subbivalve, fragile, gaping at the upper 
part, emitting a beard or tuft of silken fila- 
ments. 
Hinge toothless, the valves coalescing together. 
SPECIFIC CHARACTER, Cc. 
PINNA with striated shell, with acute, ovate, 
concave scales. 
Gualt. test. t. 79. f. D. 
Seb. 3. t. 92. 
Obs. Several of the Pinne are considered by 
Linneus as varieties rather than distinct 
species, 
The genus Pinna, of which some species grow to 
a very large size, is distinguished, among other cir- 
cumstances, by the remarkable power which the in- 
habiting animal possesses, of affixing itself at plea- 
sure to rocks, or other substances, by a vast number 
of fine silky threads or filaments, which it forms by 
extending 
