^ecklace-shells and Winkles 



223 



closely resembles the bladders of that seaweed. The 

 term dwarf applies to the almost suppression of the 

 spire, a condition 



also indicated by x^ ^ 



ohtusata, blunted. 

 There are 5 

 whorls, but the 

 first four form a 

 very small part of 

 the entire shell. 

 Occasionally pure 

 white specimens 

 may be found, and ' " 

 frequently it is 

 banded leno^th- 

 wise with red- 

 b r o w n. I t 



measures about 

 half an inch 

 either way. The 

 N e r i t e - 1 i k e 

 Winkle {L. neri- 

 toides) has a de- 

 cidedly conical 

 shell, and the last 

 whorl only accounts for two-thirds of the whole. 

 The colour is a dark red-brown, paler at the base, 

 where there is sometimes a yellowish zone. In 

 height it is a little more than a quarter of an inch, 

 and in breadth a little less than a quarter. It is 

 usually found clustered on the sides of rocks above 

 ordinary high-water mark, where during the period 

 of neap-tides it must remain dry for days in calm 

 ^5 



Animal of male Per 



louth ; h, sexual organ; c, reflexed mantle; d, vent; 

 e, kidney;/, slime-gland; g, gill; h, heart; m, shell- 

 muscle; P) foot 



