216 
BUNODID^. 
invariable accompaniment of disease and death in crassi- 
cornis ; these organs are present in unusual profusion, and 
are forced out at ruptures of the integument, by the con- 
tractions of the animal. The mesenteric membrane by 
which they are united to the septa is capable of great 
expansion : Sir John Daly ell has seen it protruded and 
spread up the side of a glass vessel, to the breadth of an 
inch. I have seen a similar phenomenon, but not quite to 
the same extent, in Peachia hastata. 
As in the case of A. mesemhryanthemum, the ubiquity of 
this species renders a catalogue of its localities unnecessary: 
it is distributed everywhere on the British coasts. 
Of foreign species, so far as may be conjectured from 
published figures and descriptions (often imperfect), the 
following may belong to this genus : Artemisia (Dana) 
from N. W. America ; pluvia (Dana) from Peru ; gemma 
(Dana) from Cape Verd Isles; papillosa and ocellata 
(Lesson) both from Peru; fusco-ruhra (Quoy et Gaim.) 
from the Tonga Isles. Of these the first-named seems 
intermediate between the present species and B. thallia. 
B. thallia. 
Anthea. [Artemisia]. 
Bolocera. crassicornis. 
[Phymactis]. H. Margaritse. [Echinactis]. 
Actinia. St. Churchise. [Cystiactis]. 
Sagartia. 
Tealia Greenei (Wright). 
Dr. E. P. Wright finds on the Irish coast a Tealia, 
which he thinks new, and for which he proposes the name 
of T. Oreenei. The parapet is much smoother than in 
