THE SAND PINTLET. 
251 
to form an ovate bladder as wide as the diameter of the 
column. This occurs as well when comfortably ensconced 
and expanding, as when exhausted by lying out of water. 
Mr. Peach has favoured me with notes of a singular 
example of the reproduction of organs in this species. A 
specimen in his possession displayed a transverse cut, 
apparently the result of accident, which extending almost 
quite across the column just below the disk, caused the fore 
part to fall over, hanging only by a fragment of skin. 
The tentacles, which now of course drooped from the 
bottom of this hanging part, presently disappeared by 
absorption, while at the same time from each of the severed 
sm-faces a new disk with new tentacles was developed. 
Thus tlie old stump became pretty much as before, only 
slightly shorter, but the severed piece lost the tentacles at 
one end, and acquired new ones at the other. 
Halcampa chrysantJiellum has been found as yet only in 
Cornwall, but in the following spots : — 
Fowey, G. W.P. : Gwyllyn Vase, Pennance, &c., W.P.G. 
P. hastata. 
CHRYSANTHELLUM. 
microps. 
Edwardsia. 
