1894.] ^41 [Stokes. 



contraction changes its position ; extended body elongate, very narrow, 

 projecting for from one-third to onelialf its length, or more, beyond the 

 frontal aperture ; peristome broad, somewhat oblique ; contracted body 

 obovate ; nucleus elongate, narrow, band-like, exceedingly tortuous dur- 

 ing the contracted state of the animalcule ; contractile vesicle single, 

 spherical, anteriorly situated. Length of lorica, about 5^5 inch. Eab. — 

 Attached to aquatic plants from Rancocas creek, at New Lisbon, N. J. 



Caulicola {caulis, stem ; colo, to inhabit), gen. nov. — Animalcules 

 loricate, as in Tkuricola, except that the lorica is conspicuously pedicel- 

 late, and possesses a valve-like appendage which is not attached to the 

 wall within the lorica, as in Thuricola, but to the lateral margin of the 

 anterior aperture. 



Caulicola valsata, sp. nov. (Fig. 9). — Lorica ovate, less than twice 

 as long as wide, posterior border rounded, somewhat inflated, thick- 

 ened centrally and with a short, posterior projection at its point of 

 attachment to the pedicle ; lateral walls often slightly undulate, and 

 usually narrowed at the truncate, anterior aperture ; valve-like appendage 

 attached to the lateral border of the anterior aperture, rising by the 

 pressure of the extending animalcule, and when fallen, completely closing 

 the orifice by a horizontal, flat-topped lid ; pedicle slender, thickened 

 centrally, and with a short anterior projection at its point of attachment 

 to the lorica, tapering posteriorly, and about one-third as long as the 

 lorica ; body of enclosed animalcule colorless, transparent, and when 

 extended, protruding about one fourth of its length beyond the lorica ; 

 cuticular surface transversel}' striate ; nucleus elongate, band -like. 

 Length of lorica, 5-J0 inch. Ilab. — Brackish water from Conej^ Island, 

 N. Y. Collected and sent to me by iAIr. H. C. Wells, of Short Hills, N. J. 



Bicosceca phiala, sp. nov. (Fig. 10). — Lorica elongate-vasiform, less 

 than twice as long as broad, widest anteriorly, tapering posteriorly to 

 the pedicle ; anterior margin everted, truncate ; lateral borders often 

 almost rectilinear ; pedicle short ; enclosed animalcule not exserted ; con- 

 tractile vesicles two or more, often four, near the posterior extremity ; 

 nucleus not observed. Length of lorica, y^V? ii^^i- -^«*- — Pond water 

 from near Trenton, N. J. ; attached to filamentous objects. 



Enchelyodon vesiculosus, sp. nov. — Body elongate ovate, one lateral 

 border somewhat concave, the other convex ; both extremities rounded, 

 the anterior somewhat truncate ; soft, flexible and changeable in shape ; 

 about twice as long as broad, the cuticular surface longitudinally striate, 

 entirely ciliate ; pharynx obconical, about one-third as long as the body, 

 longitudinally plicate, the anterior orifice transversely oval ; nucleus ap- 

 parently subspherical or broadly oval, subcentrally located ; contractile 

 vesicles three or more, near the posterior extremity ; anal aperture postero- 

 terminal ; endoplasm enclosing numerous, green corpuscles which obscure 

 the internal structure, and render the body semi-opaque. Movements 

 rotary on the longitudinal axis. Length of body, ^00 inch. Hab.—Foad 

 water in early spring, from near Trenton, N. J. 



PROC. AMER. PHIL08. 800. XXXIII. 140. 2r PRINTED JAN. 14, 1895. 



