TURBO. TVRBAN. 



More elongated thin and transparent, vritft the 

 volutions flat and quite destitute of ribs ; the outer margin 

 of the lip thin, and not thickened witfainside nor on the 

 back. 



On the English, Irish, and Scotch coasts. The variety 

 is found at the estuaries of rivers, v. v. 



26. Turbo Ulvae. Lavcr Turban. 



Pennant, pi. 89. f. 7 Dorset Cat. pi. 18. f. 12. 



Shell thick, opake, rather taper and pointed, mostly co- 

 vered with a coarse rough coat, grey, greenish, or dull red- 

 dish brown : spires six or seven, and even eight, flat or 

 very little raised, but well defined by the line of separation, 

 and faintly wrinkled longitudinally : aperture somewhat 

 oval ; the outer-lip very thin ; inner-lip reflected, and form- 

 ing a slight longitudinal cavity behind it : length a 'quarter 

 of an inch ; breadth an eighth. 



Maton and Rackett, in their Corrigenda, have directed 

 us to fig. 11 of the Dorset Catalogue, which is the Helix 

 octanfracta. 



Jn muddy inlets of the sea. v. v. 



27- Turbo ventrosus. Swollen Turban. 



Montagu* pi. 12, f. 13 Dorset Cat. pi. 18. f. 12 a- 

 Walker, f. 36. 



Shell eonic, pointed, pale reddish horn-color, glossy, sev 

 mitransparent, generally black oa the smaller part in con>- 

 sequence of its containing the dead animal: spires six, 

 rounded and well defined-, very obscurely wrinkled longiti?- 

 dinally : the first volution very large : aperture rouadishw 

 oval ; the inuer-lip not reflected : length the eighth of an. 

 inch ; breadth half as much. 



It differs from the last in being more conic, thin, ansl 

 transparent j and in the volutions being much more rounded, j 

 with the pillar-lip not in the kast reflected. 



\Vestern coasts, and Dublin bay. v. v. 



28. Turbo subumbilicatus. Oval-mouthed Turban. 

 Dorset Cat. pi. 18.f. 12. b. 



Shell conic, smooth, a little glossy, rather obtuse, yel- 

 lowish-white : spires four or five, much swollen* the first 



volution 



