348 littoriniDjE. 



it has a very shambling and awkward gait. In some 

 specimens the canal does not exist, and in others it is 

 very slight and scarcely perceptible. Those from Shet- 

 land are considerably larger than the average dimensions 

 I have given. The fry are nearly globular and widely 

 nmbilicate. The shell differs from L. crassior in neither 

 being turriculate nor having a thick epidermis ; and the 

 last whorl in the present species is always very much 

 larger in proportion to the rest. Its texture also is 

 usually thinner ; but this last character varies, and can- 

 not be depended on as a ground of distinction. 



Fabricius was right in suspecting that his Trochus 

 divaricatus was not that of Linne. This great clerical 

 zoologist described the present species with such accu- 

 rate minuteness as fully to justify my following Loven 

 and other northern writers in preferring that name to 

 the subsequent one (vincta) given by Montagu. Accord- 

 ing to Gould it is the L. pertusa of Conrad. Brown 

 described some of the variously coloured specimens as 

 Phasianella fasciata, P. bifasciata, P. cornea, and P. 

 striata ; and I cannot distinguish, in a specific sense, 

 the L. solidula, L. labiosa, or L. frigida of Loven. The 

 L. albella of the last named author is intermediate be- 

 tween the present species and L. jmteolus ; it is different 

 from the thickened slender specimen of L. divaricata 

 found by Mr. Alder at Cullercoats and doubtfully re- 

 ferred by him to Loven' s species. Leach called the 

 variety canalis Epheria Bulweriana ; the variety quadri~ 

 fasciata is his E. Goodaliii. 



3. L. pute'olus*, Turton. 



Turbo imteolus, Tuft. Conch. Diet. p. 193, f. 90, 91. L. pufeohts, F. & 

 H. iii. p. 58, pi. lxxii. f. 7-9, and lxxiv. f. 9. 



Body yellowish -white faintly tinged with pink (sometimes 



* A little pit. 



