118 POPULAK HISTORY OF THE AQUAEIUM. 



Capnea SANGUINEA. 



The genus is described as having the body invested in a 

 lobed skin, the base of which is very much dilated ; it is 

 reflected so as to form a kind of frill near the upper edge. 

 Tentacles truncated, in a single row, short, and, when 

 expanded, shaped like the embattlements of a tower. 

 C. sanguinea is of a bright vermilion colour. It changes 

 its proportions as to width and depth, but generally preserves 

 a tubular or cylindrical form. 



Iluanthus Scoticus. 



Iluantlms is thus described by Forbes: — "Body cylin- 

 drical, tapering to a point at its extremity, free ? Tenta- 

 cula simple, retractile, surrounding the mouth.'''' It is a 

 free Actinia, about an inch and a half in length, fixing 

 itself in the mud by its narrow end : from this habit it is 

 called the "Mud-flower.'' 



Arachnitis albida. 



This is another very curious abnormal form. The genus 

 is thus described: — "Body adherent, or free at will; C3din- 

 drical with a rounded base; mouth surrounded by non- 

 retractile tentacles (about sixteen) in two series, the outer 



