557 



certainly no clatim to either ; but is more allied to the 

 parajitical Mytili. It is always feflile, irregular in growth, 

 bivalve, inequivalve ; lower, or fixed valve concave : 

 upper valve, or operculum, fmaller, flat : hinge indiT 

 tin6l, no apparent teeth. 



With thefe charafters, it fliould be removed from lU 



prefent fituation, and might, with propriety, be placed 



-.as a Mytilus, unlefs any thing in the hinge, hereafter 



obfervable in larger fpecimens, fhould be found to bring 



it nearer the genus Spondylus. 



The animal is a Triton, with fourteen ciliated feelers, 

 fix on each fi-de, and two eretl. 



LEPAS. 



X.epas fafcicularis. Ellis. Zooph. p. 197. t. 15. f. 6. Fascicular^ 



This fpecies of Lepas, defcribed and figured by Ellis, 

 is certainly very diflinft from any before given ; and as 

 it was from St. George s Cliannel, (meaning, we prefume, 

 the Ckami'd between England and Ireland,) it muil be 

 confidered as belonging to Erittjh Tejiaceology. 



Ellis defcribes it thus, '' Lepas fafcicularis, tefia 

 ■'' qutnquevalvi lixvi C'rpus tegente, valvula dorfali baf, 

 ■'• dilatata, anguto acuta proininente, Jlipite nudo." 



In 



