358 littorixidj:. 



and at Southampton ; it appears to have been mistaken 

 by the authors of the ' British Mollusca ' for the L. paU 

 Hat a of Sav^ which I shall presently have occasion to 

 notice. The 3rd was discovered by Mr. Bean at Filey; 

 and I also found it not only there^ but plentifully at 

 Larne in the north of Ireland^ and in Shetland. Lilljeborg 

 has taken the last in Norway. I believe it represents the 

 young males of the ordinary form. The body of this 

 variety is dark grey and lineated^ with a tinge of purple 

 on the upper part^ and whitish underneath ; the head is 

 thick, edged with yellow above ; tentacles marked across 

 with dark rings ; eyes proportionally large, each sur- 

 rounded by a pale yellow circle; foot oval, with a 

 creamcolour sole ; verge falciform. The fanciful name 

 fabalis (derived from that of the well-known con- 

 chologist at Scarborough) may be matched with the 

 punning mottoes in heraldry. Geologists have also 

 their little weaknesses of this kind, — for example the 

 '^ Genista ^^ cave at Gibraltar, which was so designated, 

 not from its mouth being concealed by the shrub of 

 that name, but from its discoverer or explorer, Captain 

 Broome. Macgilli^Tay with greater sobriety, but less 

 attention to the rules of nomenclature, changed the 

 name of this variety to Beanii. The 4th variety inha- 

 bits Loch Torridon and other parts of the Eoss-shire 

 coast ; Meyer and Mobius found it in Kiel Bay. Ex- 

 amples of the monstrosity were in Mr. Clark's collec- 

 tion of Exmouth shells, and occurred to me on the coast 

 of Antrim. Another malformation, from Unst, has the 

 outer lip remarkably flexuous, and the upper angle of 

 the mouth converted into a long and narrow notch. In 

 a fossil state this species has been enumerated by Mr. 

 J. Smith from the Clyde beds, by Mr. Rose from the 

 brick-earth of the Nar in Norfolk, by Mr. Grainger 



