352 The American Naturalist. [April, 
from Cermatia forceps, G. microcephala from Hoplocephla 
bicornis. The paper is reproduced in Journal de Micrographit, 
Nov., 1889. 
frok J. A—The Polar Differentiation of Volvox and the 
Specialization of possible Sense Organs. Am. Nart., XXIII., p. 
218, 1889. (See Proc. Phila. Acad., 1889, p. 138.) 
KeLLiëorr, D. S—Intestirial Ponie Infusoria of Frogs. 
Microscope, IX., p. 46, 1889.—Presence of Nyctotherus cordiformis. 
, H. M—A Note on Diffugia urceolata. Microscope, 
IX., p. 307. 1889.—Difflugia leaving its shell. 
LATHAM, V. pA L.—Short Notes in Practical Biology. —Am- 
oeba. Am. Mo. Micros. Jour., X., p. 151.—Laboratory work; 
nothing new. 
Harcırrt, C. W.—Methods of Mounting Infusoria. Am, Mo. 
Micros. Jour., X., p. 183. 1889.—Kill by corrosive sublimate or 
Lang’s fluid, dehydrate by alcohol, and mount in balsam. 
SPONGES. 
Leipy, JosEpH—The boring sponge Cliona. Proc. Acad. N. 
S. Philadelphia, 1889, p. 70.—Describes supposed new species, 
C. phallica, from Florida, and gives resumé of known facts. 
CCELENTERATA. 
McMurricu, J. PLAYFAIR.—A contribution to the Actinology 
of the Bermudas. Proc. Phila. Acad., 1889, p. 102, Pls. v1., VII. 
—Anatomical Notes on Aiptasia sp.,Condylactis passiflora,Oulactts 
Sasicculata (nov.), Diplactis (nov.) bermudensis (nov.), Zoanthus flos- 
maris, Mammillifera tuberculata, Corticifera ocillata, C. glaveola, 
and Gemmaria ruset. 
McMovrricu, J. PLAYFAIR The Actinaria of the Bahama is 
lands, W. I. Jour. Morph., III., p. 1 (see Am. Nar., XXIV. p. 80). 
An elaborate paper upon the structure of Azptasia annulata, A. 
tagetes, Condylactis passiflora, Bunodes teniatus, Aulactinia stel- 
loides (nov.), Lebrunea néglecta, Discosoma anemone, Rhoductis 
sancti-thome, Heteranthus floridus, Phymanthus crucifer, Oulactis 
flosculifera, Zoanthus sociatus, Gemmaria isolata (nov.), and Corti- 
cifera flava. 


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