177 



GEN. XVIII. 



PINNA. 



Animal a?i ASCIDIA P 



SHELL, bivalve, fragile, gaping at one end; and fur- 

 nidied with a filky b^^us or beard. 



Hinge, without a tooth ; valves connected on one fide, 

 nearly the whole length, 



LiNN,£us, on the authority of Hasselquist, calls 

 the animal of the Pmna a Limax, or Slug : in this he has 

 mod certainly been miftaken, as it has not the fmallell af- 

 finity ; but appears more allied to the animal ot the 



Mytilus. 



It feems to be intirely deflitute of locomotion, remain- 

 ing immovably fixed by its b_}iJfus to other bodies ; and fo 

 firmly attached, that it cannot be difengaged at the will 

 of the animal, as the fibres are agglutinated to the gravel, 

 fand, roots of marine plants, broken fliells, and other ex- 

 traneous matter, within its reach. 



A a The 



