SEA-SNAILS AND SEA-SLUGS. 2ig 



failed to see them until they were absolutely touched by my 

 finger. The shell is exceedingly delicate, and in the hands of 

 most persons would be hopelessly ruined at the first touch. 

 The ordinary methods adopted by conchologists for getting 

 the animal from the shell will not answer in this case ; but I 

 have a plan which succeeds admirably. I give a specimen of 

 Lamcllaria to an anemone of refined tastes, who will deal with 

 it carefully. Bunodes verrucosa is my favourite assistant, and 

 he returns the shell clean and sound in a day or two. 



There are several species of Spire-shells (Rissod) to be found 

 feeding in great numbers on Grass-wrack and Sea-lettuce, and 

 we shall also find the empty shells in the sand. There are, 

 however, other forms that may be confused with them and with 

 each other, that are very plentiful in sand. These are the 

 comparatively large Turret-shell (Turritella communis], which 

 is ornamented with spiral ridges, each one running continu- 

 ously from the apex to the mouth. In the Ruddy Pyramid 

 (Chemnitzia rufescens), which is much smaller, but of similar 

 form, the ridges run across instead of along the whorls, whilst 

 in the Horn-shell (Cerithium reticulatuiri), a similar effect is 

 obtained by several rows of very regularly arranged round 

 dots in high relief. A more distinct member of the family 

 of Cerites is to be found in the well-known Pelican's-foot 

 or Spout-shell (Aporrhais pes-pelicani), in which the whorls 

 are boldly tuberculated When the shell has grown to its full 

 length, its annual stages of growth take a somewhat different 

 direction, and spread out in expansive lobes and corrugations 

 until it bears a fanciful resemblance in outline to the foot of 

 the pelican. The shell is about an inch and a half in length, 

 and very thick. The animal is carnivorous. 



Delicate specimens of the well-known Wentletraps (Scalarid) 

 may be found among fine sands. They are readily known 

 by their dazzling whiteness, the nearly round and flat-lipped 

 mouth, and the bold curved ridges that stand out across the 

 whorls like cogs on a wheel. To this genus belongs the 



