PLATE CXXVIII. 



FIG. II. II. 

 MYTILUS UNGULATUS. 



CLAWED MUSCLE. 

 SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Shell smooth, somewhat curved: posterior margin inflected: hinge 

 terminal, bidentated. 



Mytilus ungulatus : testa laevi subcurvata : margine posteriori 

 inflexo, cardine tcrminali bidentato. Linn. — 

 ¥ Gmel. Si/st. Nat. T. I. p. 6. p. 3354. Sp. 12. 



Several shells of this kind were picked up by Miss Pocock, on the 

 coast of Cornwall. It was before known as an inhabitant of the 

 Mediterranean, but not as a British species. 



Fig. II. II. — Upper and lower Figures. 



