, _ 303 -- 



16. Lieberkühn, Ou the contractile substance of Spon- 

 gilla (Ann. of Nat. Hist. 4 ser. vol. VI, 1870, p. 497). 



47. James Clark, H. Spongilla? arachnoidea Clark 

 (American Journ. Scienc. 3 ser. vol. II. p. 427, pi. 2). 

 Изъ Массачузетса. 



48. Gray, J. E., Notes of the classification of the Spon- 

 ges (Ann. of Nat. Hist. 4 ser. vol. IX, 1872, p. 461). 



49. Grube, in: Bericht. Schlesischen Gesellsch. 1872, 

 p. 62 (Spongia baicalensis Pall., изъ озера Байкала). 



30. Carter, H. J., Observations on the Reproduction of 

 Sponges commensing from the Zygosis of the Sponge- 

 animal (Ann. of Nat. Hist. 4 ser. vol. 9, 1872 , pp. 419— 

 429, pr. p.). 



51. James Clark, H., The American Spongilla, a Cras- 

 pedote Flagellate Infusorian (Monti. Microscopic. Journ. 

 vol. VII, 1872, pp. 104—114, pi. XI; Ann. of Nat. Hist. 

 4 ser. vol. 9, 1872, pp. 71—81, pi. XI: Sp. arachnoi- 

 dea J. Clk. 



52. Carter, H. J., On the nature of the seed-like body 

 of Spongilla etc. (Ann. of Nat. Hist. 4 ser. vol. XIV, 

 1874, p." 97 etc.). 



53. Sorby, H. C, On the chromatological relations of 

 Spongilla fluviatilis (Quarterly Journ. Microscopic. Scienc, 



XV, 1875, pp. 47-52). 



54. Carter, H. J., Notes introductory to the study and 

 classification of the Spongida, Pt. II. Proposed classifi- 

 cation of the Spongida (Ann. of Nat. Hist. 4 ser. vol. 



XVI, 1875, pp. 187 et 199). Установя. сем. Potamo- 

 spongida Cart.: «Fragile fresh-water Sponges, bearing 

 seed-like statoblasts.» 



54*. Forcl, Matériaux pour servir à l'étude delà faune 



