172 Mr. E. Parfitt on two new Species of Freshwater Polyzoa. 
Plumatella lineata, n. sp. Pl. XII. figs. 1-3. 
Coenecium creeping, adherent, somewhat radiating, reddish 
horn-colour, cylindrical, with eight or ten dark-brown longitu- 
dinal lines running the whole length of the tubes. 
Polype-cells barrel-shaped, hyaline, the mouth entire, each 
having five or six distinct dark-brown annulations, slightly con- 
stricted at each annulus. ; 
The orifices or polype-cells frequently produced in pairs. 
Animal white, or with a faint tinge of yellow, having the 
longest tentacles of any species I have seen. 
Calyx none? Tentacles sixty-two. 
Statoblasts dark reddish brown, elliptical, with a broad yellow 
margin. 
Habitat. On the underside of the leaves of water-lilies in a 
pond in Mr. Veitch’s old Nursery, Topsham Road, Exeter, 
July 1866. 
In habit this species is like that described by Van Beneden 
and named by Prof. Allman P. stricta. The form of the stato- 
blast is the same, but the description appended to that species 
is so brief that I cannot pronounce the one under consideration 
and P. stricta to be the same. Nothing is said of the peculiar 
lineated appearance of the tubes as seen in this, which to me 
marks it at once as distinct; and the peculiar dark annulations 
on the polype-cells form another good distinction. 
The animal is the largest and I may say the grandest of all 
the species that have come under my notice, either in reading 
or seeing the animals themselves ; its name ought to be Pluma, 
without the diminutive termination. They have a peculiarity 
of half withdrawing themselves within their cells, so that their 
long flexible tentacles alone protrude; these are then made to 
sweep the water, waving to and fro something like the Tere- 
bellas in the sea. 
Plumatella Limnas, nu. sp. Pl. XII. figs. 4-8. 
Coencecium adherent, branched, the branches growing mostly 
in pairs, and slightly enlarged towards the orifices, which are 
somewhat conical, not occupying the extreme end of the tubes, 
transparent, entire, and raised above the tubes, with three or 
four folds or rings towards the base. The whole upper half of 
the tubes or polypidom transparent, hyaline, showing under 
condensed light a very faint line of dusky granules running the 
whole length of the tubes. The inferior half of the tubes opake 
and coated with grains of reddish-brown matter; these opake 
walls are white inside the tube, and are made up of pentagonal 
cells, the walls of which are very thick in comparison with the 
size of the area of the cells. 
