58 CATALOGUE OF THE MOLLtJSCA 



The Turbo puteolus of Turton, in his " Conchological Dictionary," 

 and the Lacuna puteola of the same author, in the " Zoological 

 Journal," do not appear to be the same species. It is to the lat- 

 ter that we refer our shell. 



3. L. viNCTA, Mont. 



Turbo vinctus, Mont. Test. Brit. 307, t. 20, f. 3. 



Var. 1. Turbo quadrifasciatus, Mont. Test. Brit. 328, t. 20, 



f 7. 

 Var. 2. Turbo canalis, Mont. Test. Brit. 309, t. 12, f. 11. 

 On sea-weeds at and below low-water mark. 

 We cannot find any permanent character to distinguish these 

 three supposed species of Montagu, and have therefore united 

 them. The shell is extremely variable both in form and mark- 

 ings. The more elongated form, both banded and unhanded 

 (T. vinctus, and T. canalis), is rare, but the short, banded va- 

 riety (T. quadrifasciatus) is abundant on the fronds of Lami- 

 naria digitata, at and beyond low-water mark. 



4. L. LABiosA Loven 1 



Shell ovate-oblong, tapering, whitish, rather solid, with five 

 whorls, very slightly convex, the last occupying rather more than 

 half the shell, and rounded, or very slightly carinated below. 

 Outer lip a little expanded, and thin at the edge, within which 

 it is thickened by a callosity which extends round the base of 

 the aperture uniting with the expanded columellar margin be- 

 low. Umbilical groove small. Length \ inch, breadth 1^ 

 tenths. 



Lacuna labiosa, Loven Index Moll. Scand. 23 ? 



One specimen of this new species has occurred in sand at 

 Cullercoats. The shell is thicker and more slender than L. 

 vincta, and is somewhat intermediate between it and L. crassior. 

 It agrees very well with Professor Loven's description, but is 

 smaller, and, as we have not seen authentic specimens, we cannot 

 speak with certainty of the species to which we have referred it. 

 It appears, however, to be distinct from any of the other British 

 Lacunce. 



5. L. CRASSIOR, Mont. 



Turbo crassior, Mont. Test. Brit. 309, t. 20, f. 1. 



