POTA 


1891.] Record of American Zoology. 985 
PROTOZOA. 
Stokes, A. C.—Notices of new fresh-water Infusoria. Proc. 
Am. Phil. Soc., XXVIII., p. 74, 1890—18 new sp. New genera 
tare: Macromastix, Furcilla (preoc.), Homalozoon. As usual, no _ 
“localities are given. 
ATWELL, C. B.—Procuring amoeba for the usay Am. 
Mo. Micros. Jour., X1., p: 264, 1800. ~ 
Ryper, J. A.—On two new and undescribed methods of con- 
tractility manifested by filaments of protoplasm. Proc. A. N. S. 
Phila., 1891, p. 10.— Vide Am. NAT., XXIV., p. 
SPONGES. 
Ports, E.—Fresh-water sponges. V. The determination of the 
species. Microscope, X., p. 307, 1890. 
Leipy, J.—Note on the boring sponge of the oyster. Proc. 
A.N. 5. Phila, 1891, D 122. 
Potts, E- Report on some fresh water sponges collected in 
Florida. Trans. Wagner Free Inst, IL, p. 5, gT sp., 
Spongilla wagneri. 
CŒLENTERATA. 
Brooks, W. K., and Coxx, E. G.—On the structure and 
development of the gonophores of a certain siphonophore belong- | 
ing to the order Auronectæ Haeckel. J. H. U. Circ., X., p. 87, 
1891.—See Am. Nat., XXV. 
BIGELOW, R. Nees on the physiology of Caravella maxima 
Haeckel (Physalia caravella ean J. HA, Circ, Xo Pp. 
90, 1891. ; 
Agassiz, A—On the rate of growth of cone Bull. Mus. 
_ Comp. Zool., XX, No. 2, 1890. 
Forses, S. A—On an American earthworm of the family 
_ Phreoryctide. Bull. Įll. Lab. N. H, IIL, p. 107, 1890—Phre- 
a EF emmissarius. 
Fe J—Beroe on the New a coast. Proc. Phila, 
\ 890, Pe a eto 
mar | Ve lel 
