478 Transactions of the Society, 



striate transversely ; peristome border thickened, not revolute, when 

 expanded shpping back for a short distance about the anterior extremity 

 of the body, as in Epistylis vittata, but not concave; ciliary disc 

 prominent, convex and cushion-like ; ciliary circles apparently three ; 

 nucleus band-like, much and variously curved in the anterior body- 

 half, often transversely placed ; contractile vesicle spherical, situated far 

 forward, apparently in the ciliary disc ; endoplasm finely granular ; 

 pedicle dichotomously and profusely branched, longitudinally striate, 

 the primary portion about equal in length to an extended body, the 

 ultimate divisions from one-fourth to one-fifth that length; zooids 

 numerous ; contracted bodies ovate, often pendent, posteriorly annulate 

 in three or four folds. Length of extended body 1/240 in. ; height 

 of entire pedicle 1/56 in. Hab. Pond water; attached to rootlets of 

 Lemna. 



Episfylis autumndlis, sp. nov., fig. 3. 



Bodies conical-campanulate, three times as long as broad, the 

 cuticular surface very finely striate transversely ; peristome exceeding 

 the body in width, everted and revolute; ciliary disc obliquely- 

 elevated; ciliary circles two, the outer wreath projecting almost 

 horizontally ; nucleus band-like, curved, transversely placed in the 

 anterior body-half; contractile vesicle single, spherical, anteriorly 

 located apparently within the ciliary disc ; contracted body obovate 

 or subspherical, posteriorly annulate, and invaginating the extremity 

 of the foot-stalk ; pedicle dichotomously branched, more or less 

 flexuose, longitudinally striate, the ultimate divisions about one- 

 third as long as the extended zooids, the main stem about one-half 

 the length of the entire pedicle, the whole becoming brown with 

 age. Length of extended body 1/300 in.; height of entire pedicle 

 1/65 in. Hab. Pond water; attached to the rootlets of Lemna, in 

 the autumn. 



Ejpistylis ramosa, sp. nov., fig. 4. 



Bodies elongate-ovate or elongate-subvasiform, less than four times 

 as long as broad, widest subcentrally, tapering posteriorly to the 

 pedicle and anteriorly to a short, subcylindrical, neck-like prolongation, 

 the frontal border truncate, crenulate ; cuticular surface very finely 

 striate transversely ; peristome narrower than the body centre, neither 

 revolute nor much everted ; ciliary disc obliquely elevated ; ciliary 

 circles apparently two ; pharyngeal passage very capacious, extending 

 beyond the centre of the body, its walls conspicuously ciliated ; pedicle 

 finely striate longitudinally, profusely and dichotomously branching, 

 the divisions in mature colonies forking from eighteen to twenty times, 

 the ultimate branches about one-half the length of an extended body, 

 the entire foot-stalk becoming brown with age ; contracted zooids 

 elongate-obovate, nodding, invaginating the summit of the pedicle and 

 posteriorly annulate, beariug anteriorly a short, longitudinally plicate, 

 snout-like projection, the frontal border crenulate; nucleus band-like. 



