ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 



359 



with the greatest area iu proportion to weight showed far more active 

 respiration than do less finely divided forms. We may note that no 

 reference is made to the symbiotic Alga?, their presence or absence, 

 their abundance or sparseness. Do they not affect the respiration rate ? 



J. A. T. 



Protozoa. 



. New Coprozoic Flagellate. — A. Alexeieff (Arch. Zool. Exper., 

 1919, 57, Notes et Revue, No. 1, 1-11, 3 figs.). In macerated horse- 

 dung there appeared on the fourth day an abundance of a new Flagellate, 



/ s. 



Alphamonas coprocola g.et s]^.n. x 2250. 



A.-D., individuals without digestive vacuole. E. , I, N„ individuals with 

 well-developed digestive vacuole. L., M., the digestive vacuole almost 

 filled with an ingested organism. E>., P., young individuals soon after 

 the multiplication by pseudocysts. 



Alphamonas coprocola g. et sp. n., which persisted for three days. It is 

 a very minute form with a sigmoid curvature, with two very delicate 

 flagella, one anterior and one recurrent, with an anterior alveolar region 



