478 CLASS ECHINODERMATA. 
But one is known, with a short body ; lives in the lepidopus. 
Blainy. App. ad Brems. pl. ii. p. 8., 
FLORICEPS, Cuv., 
Which have four small proboscides, or tentacula, armed with 
recurved spines, by means of which they bury themselves in 
the viscera. 
Certain species, 
RHYNCOBOTHRIUM, Blain., 
Have the body long, articulated, and without bladder. 
There is one sufficiently common in the rays; Bothryoce- 
phalus corollatus, Rud. ix. 12., some inches in length. Its © 
head altogether resembles a flower. 
Some others, 
FLORICEPS, 
Properly so called, have the body terminated by a bladder, 
into which it enters and is concealed. 
TETRARHYNCUS, Rud., 
Appear to be only floriceps, reduced naturally to the head, 
and two articulations, instead of an elongated body, and seve- 
ral articulations. 
One is found very commonly in the flesh of the tongue 
of the turbot, and of several other fishes. Tetr. lingualis, 
Cuy. 
TENTACULARIA, Bosc., 
Differ only in the tentacula not being armed with spines. 
Those have also been distinguished from the ordinary 
tenis, which, with a head similar to theirs, that is to say, 
with four suckers, have the body terminated behind by a 
