REVISION OF FRESHWATER SPONGES OF SPONGILLIDAE 171 



1882a. Three more freshwater sponges. Proc. Acad. Nat. Sci. PhUadelphia, 



pp. 12-14. 

 1882b. Sponges from the neighbourhood of Boston. Proc. Acad. Nat, 



Sci. Philadelphia, pp. 69-70. 

 1884a. Some modifications observed in the form of sponge spicules. Proc. 



Acad. Nat. Sci. Philadelphia, pp. 184-185. 

 1884b. On the wide distribution of some American sponges. Proc. Acad. 



Nat. Sci. Pliiladelphia, pp. 215-217. 

 1885a. A new freshwater sponge from Nova Scotia {Heteromeyenia pidovensis) . 



Proc. Acad. Nat. Sci. Philadelphia, pp. 28-29. 

 1883b. Freshwater sponges from Mexico. Proc. U.S. Nat. Mus., vol. 8, 



pp. 587-589. 

 1885c. A freshwater sponge from Mexico (Meyenia mexicana) . Amer. Nat., 



vol. 19, pp. 810-811. 



1886. Freshwater sponges from Newfoundland: a new species. Proc. 



Acad. Nat. Sci. Philadelphia, pp. 227-230. 



1887. Contributions towards a synopsis of the American forms of freshwater 



sponges with descriptions of those named by other authors and 

 from all parts of the world. Proc. Acad. Nat. Sci. Philadelphia, 

 pp. 158-279. 

 1889. Report upon some freshwater sponges collected in Florida by Jos. 

 Wilcox, Esq. Trans. Wagner Free Inst. Sci., vol. 2, pp. 5-7. 

 Rao, H. S. 



1929. Sponges and Polyzoa of the Indawgyi Lake, Burma. Rec. Indian 



Mus., vol. 31, pp. 269-271. 

 Retzer, W. 



1883. Die deutschen Siisswasserschwamme. Inaug. Dissert. Univ. Tubin- 

 gen, pp. 1-30. 

 Rezvoj, p. 



1925. Spongilla rotundacvta, a new freshwater sponge from the delta of the 



Volga. Ann. Mag. Nat. Hist., vol. 15, pp. 567-569. 

 1926a. Note on freshwater sponges from Turkestan. Compts. Rend. Acad. 



Sci. U.S.S.R., pp. 107-110. 

 1926b. Einige Angaben iiber die Siisswasserschwamme des Oka-Flusses. 



Roboty Oksk. biolog. stan., vol. 4, p. 64. 

 1928. Zur SpongiUidenfauna Russlands. Zool. Anz., vol. 84, pp. 219-232. 

 1929a. Siisswasserschwamme aus der russischen Arktis. Zool. Anz., vol. 85, 



pp. 283-291. 

 1929b. tjber Spongilla proliferens Annandale and S. sedospina mihi. Zool. 



Anz., vol. 85, pp. 158-160. 



1930. Siisswasserschwamme aus dem Ussuri-Gebiet. Zool. Anz., vol. 87, 



pp. 175-186. 

 RiojA, E. 



1940a. Estudios liidrobiol6gicos I. Estudio critico sobre las esponjas del 



lago de Xochimilco. Anal. Inst. Biol., vol. 11, pp. 173-189. 

 1940b. Estudios hidrobiol6gicos III. Una nueve variedad de Spongilla 

 fragilis Leidy de las lagunas de Zempoala. Anal. Inst. Biol., vol. 

 11, pp. 555-557. 

 Rousseau, E. 



1906. Note monographique sur les spongiaires de Belgique. Soc. Zool. 

 Malac. Belgium, vol. 41, p. 124. 

 279-430—68 14 



