THE C(ELENTEEATES 



147 



radiating lines of the disc, and the numerous small tentacles. 

 One variety, however, deviates considerably in form, colour, and 

 habit from the normal. It (Plate II., fig. 6) is of a dull yellow 

 colour, and has a much less graceful form ; and, instead of living in 

 the holes and crevices of rocky coasts, where it would be washed 

 by fresh sea water at every tide, it inhabits the muddy and 

 foetid waters of narrow inlets of the sea in the neighbourhood of 

 Weymouth. 



Three other species of the same genus are represented on 

 Plate III. The first of these Sagartia troglodytes, sometimes 

 called the Cave-dweller (fig. 1) though very variable in colour, 

 may be known by its barred tentacles, each with a black B-like 



FIG. 97. Sagartia nivea, DEVON AND CORNWALL 



mark near its base. It lives in sheltered, sandy, or muddy 

 hollows between the rocks on most rugged coasts, often with its 

 body entirely buried beneath the sediment ; or, if only partially 

 buried, the projecting portion of the column concealed by particles 

 that adhere to its suckers. 



The column is usually of an olive colour, striped longitudinally 

 with a paler tint, and sometimes reaches a length of two inches, 

 while the diameter of the expanded ' flower ' may even exceed this 

 length. 



This anemone is not a very conspicuous object of the shore, 

 since the exposed portion of its column is usually more or less 

 covered by sedimentary matter, and the tentacles are generally 



