154 >. THE AMERICAN NATURALIST. (VoL. XXXIX. 
Lake (B. S. N. H., no. 4313); Pudding Pond, North Conway 
(Henderson Coll. no. 71) ; Claremont (B. S. N. H., no. 4662). 
Euglypha alveolata Dujardin. 
Test chitinous, transparent and colorless. Ih form, generally 
a regular ovoid shape, truncated at the smaller end. One or 
two specimens were narrower and more flask-shaped. About 
half of the shells examined had spines. 
Size — Length, 48-91 y; breadth, 31-46 p; aperture, I2- 
I8 a. 
Localities— Profile Lake, Claremont, Franconia, and Saco 
Lake (B. S. N. H., nos. 4313, 4662, 4307, 4325). 
Euglypha ciliata ( Ehrenberg). 
The plates in the tests of the specimens did not seem to over- 
lap. In one specimen the cilia were few and long, in the others 
more numerous and shorter. 
Szze. — Length, 70-78 a; breadth, 37-42 u; aperture, 16- 
18 p. These were all found in the valley and show little variety 
in size. 
Localities.— North Woodstock (Cushman Coll., nos. 176, 181, 
Henderson Coll. no. 65); Intervale (Henderson Coll., no. 67) ; 
Profile Lake (B. S. N. H., no. 4213). 
Trinema enchelys (Ehrenberg). 
Closely corresponds to figure ı of Plate 39 of Leidy. 
Size. — Length, 81 a; breadth, 44 u; aperture, 16 u. 
Locality.— Franconia (B. S. N. Hy no. 4307). 
Acanthocystis chztophora Schrank. 
But one specimen of this species was found and that was 
typical in every way. 
Szze.— Breadth with spines, 125 u; 
length of spine, 24 p. 
Locality. — North Woodstock (Cushman Coll., no. 190). 
breadth of body, 54 u; 
