142 ZOOPHYTES. 



numerous, very short, clavate, arranged in about 20 radiating trian- 

 gular groups ; mouth 4-lobed. 



Plate 3, fig. 26, the expanded animal, natural size ; 27, the same 

 in one of its positions ; b, outline of the mouth showing its form. 



Lagoon of Clermont Tonnerre. Exp. Exp. 



The body is very soft and easily injured. The colours sloughed 

 off in forty-eight hours, but the specimen lived about six days, and in 

 that time diminished its size full two-thirds. The sides of the fresh 

 specimen were streaked with interrupted lines of a delicate lake, 

 except near the margin of the base, which is colourless, and a zone of 

 dark ochre above, where it is marked vertically by short dark brown 

 lines. The margin of the disk forms five irregular lobes ; it has a 

 faint ochreous colour as far as the innermost tentacles, but thence to 

 the mouth the colour is pale rose, with numerous radiating lines of 

 lake like those on the body. The tentacles are colourless, except at 

 their tips, which are opaque white. They are short, clavate, and, 

 when contracted, resemble little pimples; they are not in concentric 

 series, but constitute about twenty groups of a triangular form, the 

 apex towards the centre. 



This zoophyte was continually shifting its position by means of its 

 foot or base, which it used almost precisely like the gasteropod mol- 

 luscs. It also altered its form greatly, sometimes stretching into a 

 long cylinder, or curving and contracting in every way, and some- 

 times it was almost flat. J. P. COUTHOUY. 



ACTINIA ACHATES. (Dray ton.) 



A. subcylindrica, medio 1" crassa, supra dilatata (l") et profunde 

 sinuoso-lobata, lobis quinque aut sex ; extus levis ; tentaculis 3-seriatis, 

 brevibus (viz 2'") et exiguis ("'), submarginalibus, ore prominuk 

 6-partito. 



Subcylindrical, about an inch through at middle, above dilated and 

 profoundly sinuoso-lobate ; lobes 5 or 6 ; exterior smooth ; tentacles 

 in 3 series, quite short (2 lines) and slender ( of a line), submar- 

 giual ; mouth a little prominent, 6-partite. 



Plate 3, fig. 28, expanded animal, natural size ; a, the disk showing 

 its lobed form. 



