THE BOTTLE ANIMALCULE, FOLLICULINA. 285 



temporary community in which marine forms depend upon the 

 fresh water plants for attachment and existence above the 

 bottom. Presumably these animals migrate in from the salt 

 water and die out every year. 



6. The peculiar groupings of Folliculina suggesting some 

 common bond may be partly explained as due to the secretions 

 they put forth when about to build their cases. 



7. The anatomy of the motile and sessile forms and the mode 

 of formation of the case will be considered elsewhere. 



LITERATURE REFERRED TO. 



Barrett, C. A. 



'70 On a new tube dwelling Stentor. Monthly Mic. Journal, III., 1870. 

 Claparede and Lachman. 



'58 Etudes sur les Infusories et Rhizopodes. Geneva, 1858. 

 Dons, Carl. 



'12 Folliculina Studien, I, II, III. Archiv. f. Protistenkunde, 27, 1912. 



'13 IV Tromso Museums Aarshefter, 35-36, 1913. 

 Entz, Geza. 



'84 Uber die Infusorien des Golfs von Neapel. Mitth. Zool. Sta. Napel, V., 



1884. 

 Gruber, A. 



'84 Die Protozoa des Hafens von Genoa. Verb.. D. Leop. Car. Ak. 46, 1884. 

 Henneguey, L. F. 



'84 Note sur un nouvel infusoire cilie (Ascobius lentus). Archiv. d. Zool. exp. 



2, L, II., 1884. 

 Kent, Saville. 



'80 '82 Manual of the Infusoria, London, 1880-1882. 

 Laachmann, H. 



'oi-*03 Zur kenntniss des heterotrichen Infusoriengattung Folliculina Lam. 



Deutsche Sudpolar-Expedition, XII., Zool. IV., 1901-1903. 

 Leidy, J. 



'59 Proc. Acad. Nat. Sci., Philadelphia, 1859. 

 Mbbius, K. 



'87 Das Flaschenthierchen, Folliculina ampulla. Abd. Nat. ver. Hamburg, 



10, 1887. 

 Miiller, O. F. 



'86 Animalcula infusoria fluviatilis et marina. Havniac, 1786. 

 Ryder, J. A. 



'80 On the Occurrence of Freia products, Wright, in the Chesapeake Bay. 



Am. Nat., 14, 1880. 

 Schroeder, Olav. 



'07 Beitrage zur Kenntniss von Stentor coeruleus. Archiv. f. Protistenkunde, 8, 



1907. 

 Wright, Strethill. 



Observations on British Protozoa. Q. J. Mic. Sci. 1862, II. 



'59 On Slentor Mueller i and S. castanea. Edinb. New Phil. Journ., 1859. 



