a new Marine Animal. 337 
ingly delicate, and have at fmall diftances fibres running acrofs 
them from their attachment at the Item to the loofe edge, 
which gives them a ribbed appearance. Thefe fibres are conti- 
nued about one-tenth of an inch beyond the membrane, having 
their edges finely lerrated, like the tentacula of the Adtiniae 
found in Barbadoes : thefe tentacula fhorten as the fpiral turns 
become fmaller, and are entirely loft in that part of the mem- 
bran e which terminates in the point of the cone. 
Behind the origin of thefe cones arifes a fmall iliell, which,, 
for one-fixth of an inch from its attachment to the animal, is 
very {lender': it is about three quarters of an inch in length, 
becoming confiderably broader at the other end, which is fiat, 
and about one-third of an inch broad ; the fattened extremity 
is covered with a kind of hair, and has riling out of it two 
fmall claws, about one-fixth of an inch in length. If the hair, 
and mucus entangled in it, be taken away, this extremity of the 
fhell becomes concave, is of a pink colour, and the two 
claw's rifing out from its middle part have each three fhort 
branches, not unlike the horns of a deer. The body of this 
fheli has a foft cartilaginous covering, with an irregular but 
■polifhed furface : on this the cones reft in their col-lap fed ft ate, 
in which ftate the whole of the fhell is drawn into the cavity of 
the brain-ftone, excepting the flattened end with the two 
claws. 
Before the cones there is a thin membrane, which appears to 
be of the fame length with the {hell juft deferibed-. In the col- 
dapfed ftate it lies between the cones and the fhell in which the 
animal is inclofed ; but, when the tentacula are thrown out, it 
is alfo protruded. 
The (hell of this animal is a tube, which is very thin, and 
adapted to its body ; the internal fur-face is fmooth, and of a 
Y.j 2 pink* 
