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GENUS i6. MYTILUS. Tab. XI. 



CHARACTER GENERIS. 



Animal Afcidia? Tefta bivalvis, rudis^ fepius affixa byflb. Cardo 

 edentulus, diftinftus linea fubulata excavata longitudinal!. 



i6th GENUS. M U S S E L L. PI. XI. 



CHARACTER OF THF. OK NU S 



Is the animal an Afcidia ? The fhell is bivalve, rough, often faftened 

 with biffus. The hinge has no teeth, but is maiked with a line in 

 ftiape of an awl, funk deep and longitudinal. 



I6'"^ GENRE. LA MOULE. PL XL 



CARACTERE DU GENRE 



L'animal eft il une Afcidia ? La coquille eft bivalve, rude, fouvent at- 

 tachée avec bifliis. La charnière n'a point de dents, mais elle eft 

 marquée d'une ligne en alêne, creufe, et longitudinelle. 



This Genus is divided into three families, as follow : 



* Parafitici, unguibus affixi. 

 ** Plani s. comprefli, ut plani appareant et fubauriti. 

 *** VentricofiufcuU. 



1 



The 



