250 



Schewiakoff, W., So-called excretory Granules of Infusoria. Abstr. in: Journ. 

 R. Micr. Soc. London, 1894. P. 3. p. 352—353. 

 Zeitschr. f. wiss. Zool. — v. Z. A. 1893. p. 418. 

 Kellicott, D. S., On certain marine Infusoria observed at Woods Holl, Mass. 

 in: 2. Ann. Rep. Ohio St. Acad. So. p. 10 — 11. 



Lagenophrys eupagurus, Thuricola ßmhriata, Cothurnia longipes nn. spp. 

 Johnson, Herb. P., The Plastogamy of Actinosphaerium . With 4 figg. in: 

 Journ. of Morphol. (Whitman), Vol. 9. No. 2. p. 269—276. 



Plastogamy (Hartog) is characterized by non-fusion of nuclei. Karyogamy 

 has not been observed. Coalescence was promptly followed by division. 

 Ehumbler, L. , Die Herkunft des G'/oi^ye?•^ntì!-Einschlusses bei Orbulina uni- 

 versa à' Oxh. MitlAbbild. in: Zool. Anz. 17. Jhg. No. 448. p. 196— 202. 

 Eine Glohigerina , die bis zu einer gewissen Größe herangewachsen ist, hüllt 

 sich in eine Oro^//ma-Schale ein, um sich vor den Insulten der Wellenbewegung 

 zu schützen. Die Kalkwandungen und Stacheln werden resorbiert, so daß nur die 

 Schalenhäutchen zurückbleiben, welche später auch verschwinden. Erkannt wird 

 dann der GZoSi^enVia-Einschluß an den feinporigen Einsatzstücken. 

 S chlumberger, G., Monographie des 3Iiliolidées du golfe de Marseille. Ausz. 

 von L. Rhumbler. in: Zool. Centralbl. 1. Jhg. No. 8. 1. [26.] Juni, p. 309—310. 

 Mém. Sc. Zoo). France. — v. Z. A. 1893. p. 208., 

 Massart, J., Irritability of A^oc^j7Mca. Abstr. in: Journ. R. Micr. Soc. London, 1894. 

 P. 3. p. 354. 



Bull. Sc. France et Belg. — v. Z. A. 1893. p. 419. 

 Ishikawa, 0. , Studies of Reproductive Elements. II. Noetiluca miliaris Sur. ; 

 its division and spore-formation. With 4 pis. in: Journ. Coll. So. Japan, 

 Vol. 6. P. IV. p. 297—326, 327—334 (liter, and expl.). 



fl. Diaptoinus. v. Z. A. 1892. p. 212.) — Ausführliche und mit Abbildungen 



erläuterte Schilderung der Processe der Theilung u. Sporenbildung (v. supra, p. 18). 



Gould, Lilian J., Notes on the Minute Structure of Pelomyxa palustris (Greeff). 



With 2 pis. in: Quart. Journ. Micr. Sc. VoL 36. P. 2. p. 295—304, 



305—306. 



Confirms the views ofBütschli as to the foam-like structure, the very fine 

 vacuolisation of the protoplasm. In one individual there was a central irregular 

 ring of apparently denser protoplasm. The »Glanzkörper« are almost certainly 

 either solid structures or filled with a coagulable fluid. The rod-like bodies, de- 

 scribed by Greeff as crystals, are Bacteria, which M. D. Hill proved by culti- 

 vation. 

 Po teat, Wm. L., Ouratnoeba. in: Nature, Vol. 50. No. 1282. p. 79. 



TJramoeha. — The filaments are of the nature of a parasitic fungus, as Leidy 

 already suspected. Asks for references. 

 Maggi, Leop., Sull' Urocentrum turbo Ehr. Nota. Pavia, tip. cooperativa, 

 1894, 80. (8 p.) Estr. dai Rendic. R. Istit. lomb. (2.) Vol. 8. Fase. 2. 



11. Spongiae. 



Masterman, Arth. T. , On the Nutritive and Excretory Processes in Porifera. 

 With 6 figg. in: Ann. of Nat. Hist. (6.) Vol. 13. June, p. 485—496. 



In Granila compressa the processes of digestion and excretion are as follows. 

 Food-particles are ingested mainly into the choanocytes. These are then trans- 

 formed into amoeboid cells (in no way differing from so-called mesoderm-cells), 

 which immigrate to interior, where intracellular digestion takes place. Thejr are 

 replaced by fresh choanocytes arising from mesoderm-cells. Solid waste particles 

 are excreted by amoeboid »nephrocytes« which burst through the ectoderm , pro- 

 bably to disintegrate. The sponge-colonies must be allowed to remain only for 

 two minutes in the water with fine particles of carmine in suspension ; or else the 

 later stages might easily be mistaken for early stages (as von Lendenfeld seems 

 to have happened). The facts reported strengthen the resemblance between the 

 simpler Sponges and the colonial Choanoflagellata, and the absence of inter- 



