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GENUS 17. PINNA. Tab. XII. 



CHARACTER GENERIS. 



Animal Umax. Tefta bivalvis, fragilis ; ere6la omittens barbam Byfli- 

 nam. Caido edentulus, coalitis in unam valvulis. 



17th GENUS. SEA-WING. PI. XII. 



CHARACTER OF THE GENUS. 



The animal is a fnail. The fliell bivalve, brittle, upright, laying afide 

 the flaxen beard. The hinge toothleis, the valves growing into 

 one. 



I9'"^ GENRE. PINNE-MARINE. PI. XII. 



CARACTERE DU GENRE. 



L'animal eft un limaçon. La coquille foubivalve, fragile, droite, fe 

 défaifant de fa barbe de chanvre. La charnière fans dents, les valves 

 fe formant en une feule. 



This bivalve fliell fixes by the Ce coquillage bivalve s'attache à 



help of its filaments upon rocks, at l'aide de fes fils, fur les rochers à 



the depth of 20 or 30 feet under la profondeur de 20 ou 30 pieds 



water, in order to flielter itfelf from fous l'eau, poiu: fe mettre à l'abri 



the tolling of the waves and tem- du roulis des flots et des tempêtes, 



pefts. It is made to lofe its hold On l'en détache avec des inftru- 



by means of iron inflruments called ments de fer appelles crampe. La 



grapples pinne- 



