PARENCHYMATA. 419 
From the Bothryocephali themselves should be distinguished the 
Disoturyoruyncuus, Blainv., 
Where the summit of the head is provided with two little trunks or 
tentacula bristled with hooks. 
But a single species is known; it has a short body and inha- 
bits the Lepidepus, Blainv., App. ad Brens,, pl. ii, f, 8. 
Froriceps, Cuv., 
Where there are four little trunks or tentacula armed with recurved 
spines, by means of which they penetrate into the viscera. 
Certain species—Ruyncnosorurivum, Blainv.—have a long, arti- 
culated body destitute of a bladder, 
One species is common in the Rays—Bothryocephalus corol- 
latus, Rud., 1X, 12—that is some inches in length. Its head 
is the exact resemblance of a flower. 
In others again—F Loricers proper *—the body is terminated by a 
bladder, into which it withdraws and is concealed. 
TErRARHYNCHUs, Rud. 
The Tetrarhynchi merely appear to be Floriceps naturally reduced 
to the head and two joints, instead of having an elongated and pluri- 
articulated body. 
T. lingualis, Cuy. Very common in the tongue of the Tur- 
bot, and of several other fishes f. 
TENTACULARIA, Bose., 
Only differ in consequence of the tentacula being unarmed. 
Naturalists have also distinguished from the ordinary Teenie 
those which, with a similar head, that is, one with four suckers, have 
the body terminated postericrly by a bladder. Their joints are not 
as distinctly marked as in the preceding ones. The genus 
Cysticereus Rud. 
é 
Vulgarly termed Hydatids, is composed of those in which the blad- 
der supports but a single body and one head. They are particularly 
developed in the membranes and cellulosity of animals. 
C. globosus; Tenia ferarum, T. caprina, T. ovilla, T. verve- 
cina, I’. bovina, T. aprt, T. globosa, Gm.; Goetz., XXII, A, B; 
Encyc., XXXIX, 1,5. This species is found in a great number 
of Quadrupeds, the Ruminantia especially. 
C. pisiformis; Tenia cordata, T.pistformis, T. utricularis, 
Gm.; Geetz., XVII, A,B; Encye., XX XIX, 6, 8. Very com- 
mon in the Hare and Rabbit. 
C. cellulose; Tania cellulose, T. finna, Gm.; Blumenb., 
Abb., fascic. IV, pl. 39. This species is the most celebrated 
* M. Rudolphi has changed this name to ANTHOCEPHALUS, El., 177. 
+ For this genus, See Rud., Hist., II, 318, and Syn., 129. 
