154 
ANTHEAD^. 
same time, if I were quite sure that the specimens in my 
possession were identical with that described by Forbes, I 
should be compelled to reject his sj^ecific name as involving 
important error. The tentacles can in no sense be called 
biserial : there are four distinct rows, which are regularly 
graduated in length, and which show no other distinction ; 
the appearance indicated by his figure (supposing it to 
represent the present species) being quite illusory. 
But on examination I found peculiarities in the animal, 
which required its generic separation. The most promi- 
nent of these were its form, the length and flexuosity of its 
tentacles, and its permanent expansion. In two of these 
characters, as well as in several other points which I shall 
presently notice, it manifested so close an affinity with 
Anihea cereus, that I should not have hesitated to include 
it as a second species in that genus, had not the presence of 
acontia, and their extrusion through cinclides, indicated a 
nearer approach than is made by that species to the family 
Sagartiada. I therefore ventured to describe it under the 
name of Aiptasia amacha / the generic appellation referring 
to its permanent expansion, from aet, always, and Trerao), 
to expand ; and the specific to the patience with which it 
bore pushings and pokings without unsheathing its weapons, 
from a, priv., and gdyogaL^ to fight. The English name 
refers to its trumpet-like form. 
Subsequently, however, I have found that the species has 
been well described and figured by Mr. W. P. Cocks, in 
his valuable List of the Actiniee of Falmouth, published in 
the Report of the Cornwall Society for 1851, under the 
title of Anihea Couchii, which specific name takes prece- 
dence of mine. It is true, in his description, mention is 
made of three white lines extending longitudinall}^ up 
the column, of which no trace exists in my specimens ; 
but by a coloimed drawing with which Mr. Cocks has 
