Macurre—WNotes on Certain Actiniaria. 725 
p- 160. The latter simply separates the Paractidee from the 
Sagartidze by the absence of acontia; and with this definition, 
P. chromatoderus seems to agree very well. 
Fig. 5. 
Paranthus chromatoderus.—Transverse section through part of cesophageal 
region of column. (For Lettering see p. 731.) 
(c)—Tue Anatomy or Actinia EQUINA (Linn.) 
var. MESEMBRYANTHEMUM. 
So many figures and descriptions of the external characters of 
this Actinia have been given by Gosse, Andres, and others, that 
Ido not propose to describe anything but the internal anatomy, 
about which more information is required. 
The methods used were the following :— 
Some specimens were hardened in formaldehyde four per cent., 
and examined macroscopically. This reagent destroys the colour, 
