82 
bordor or margin. Each space between the furrows, 
frequently again furrowed by two or three finer ones; h°. 
these are not always apparent, especially when the anij 1 '® 
is much distended. When the polype is fully expands > 
the oral surface is frequently enlarged from hall-an-incb 
one inch and half, and the furrows of the sides appear a 
if they terminated superiorly in tubercular looking bodi®* 
The shape varies as in the contracted state, from the c ° 
lumnar to the hemispherical and hourglass contracted for'°J 
The oral surface is generally of a darker brown than 
other parts, and nearly always marked with one, frequent J 
with two, and sometimes with many white radiating H® BS * 
which terminate at the base of the tcntacula. The nio" j 
is central, slightly elevated, irregular in shape, and mark® 
with two furrows internally which run down into ll > 
stomach. The tentacula are long and stout, and vary ' 
number with the age of the individual; Gtertner says d' 0 - 
amount occasionally to 200, and I have counted 150 ; ^ l£ ? 
are about twice the length of the body when fully expands 1 ’ 
and are incapable of being withdrawn as is the case with 1*^ 
Actiniae. They are of very unequal length and size, a® 
frequently get contracted in various parts as if diseased ; 1,1 ' 
is most probably the case, since the upper portion is * r j 
queutly sloughed off, and thus they become truncated, 
have in four instances found the tentacula on one side entir® ' 
absent, or so short as to be little more than mere tuberd® 
and others springing up in their places. Almost every s P e 
citnen examined, shows this growth and decay of 
tentacula in a greater or less degree, the smaller o° 
springing up between the larger and perfect ones in e ' ei ' g 
degree of length, lleside this, the tentacula are liable 
mal-formations, some give off one or more lateral spr°' ll '[ 
and others I have seen dichotomously branched ; this * a ' 
however is very rare. g 
There are two varieties of this species, equally coining’ 
which are always intermingled with each other at all seaso 
One is of a light fawn colour both in the body and tentac>j ’ 
but the oral surface is rather of a deeper colour than 
other parts ; the oilier is of a pea-green and remarkably 
the great delicacy of its tints; the tentacula are alwayslig . „ 
than in the brown variety, and they have a white line rulin' " 
up on one side. In the green kind the tentacula are al' v ‘!% 
of a rose colour at their extremities, which is iu the ?P r ' g 
and summer of a deeper tint, aud extends sometimes over 
thirds the whole length. Gaertner has seen it extend ® 
colour the whole tentacula of a red-mahogany colour, 
brown variety is frequently without it. , lS 
This appears to be a more active kind than any of 
Actinias; its tentacula are constantly expanded and in c ° 
