192 POPULAR BRITISH CONCHOLOGY. 



thickness, in other cases large and thin. The animal is of 

 a general yellowish tint or white, blotched with black or 

 grey ; it has a large flabby foot, a long retractile proboscis, 

 long siphon, rather short and thick tentacles, with eyes on 

 their swelled bases, and an oblong operculum, composed of 

 layers over-edging a side nucleus. The young of Bncdnum 

 iindatum is deposited in a round patch of gristly cells, each 

 of which contains two, three, or four embryos. 



Never having had the good fortune to taste the whelk, I 

 cannot vouch for its excellency; but it is by no means rare 

 to see people standing at the stalls, eating these boiled mol- 

 lusca with a little pepper and vinegar, and to all appearance 

 much enjoying the alfresco repast. 



B. Balei is only known by the shell, which in shape is not 

 unlike the more normal varieties of B. undatum ; it 

 is smooth and glossy, with a blunt apex and rounded 

 whorls. 

 B. Humjohrei/siamim is named from a light, thin, pale pink- 

 ish or fawn-coloured, faintly-striated shell, with deli- 

 cate streaks of light brown ; the whorls are rounded, 

 and the aperture is pinkish, and occupies about half 

 the length of the figure. 

 B.fusifomie: a whitish shell, clothed with a greenish -yellow 



