490 Thilo Krumb ach: Hydroidea und Acalephae 



Whitelegge, T. and Hill, J. P. The Hydrozoa, Scyphozoa, 

 Actinozoa and Vermes of Funafuti. (Hydrozoa and Vermes by 

 Whitelegge alone.) — Australian Museum. Sydney. Memoir III, 

 Part 7, March 1899, p. 371— 394, t. 23-27. Siehe dort auch: 

 Summary of the Fauna of Funafuti (Ellice Group). 25 p. 



Williams, Stephan R. The Specific Gravity of Some Fresh- 

 Water Animals in Relation to their Habits, Development, and Com- 

 position. — The American Naturalist Vol 34, February 1900 

 (No. 398) p. 95-108, Textf. 1—3. Boston U. S. A. — Auch Con- 

 tributions from the Zoological Laboratory of the Museum of Com- 

 parative Zoology at Harvard College. E. L. Mark, Director. No. 107. 



Experimente ausser an Protozoen, Räderthieren, Planarien etc. 

 auch an Hydra viridis, fusca or grisea u. Cordylophora lacustris 

 p. 101 .. . Results p. 107—108. E. 



Willey, Arthur (1). XVI. Coelenterata. — The Zoological 

 Record. Volume the thirty-sixth. 1899. London. — 23 p. 



I. Titles. IL Subject-Index. Coelenterata: General Biology. 

 Hydrozoa: Hydroidea (including Hydromedusae) a) General Biology, 

 b) Distribution, c) Systematik; Hydrocorallina a) General Biology, 

 b) Systematik; Siphonophora . . .; Graptolithida . . .; Ctenophora; 

 Scyphozoa: a) General Biology, b) Distribution, c) Systematic. 

 Anthozoa . . . 



— (2). XVI. Coelenterata. — The Zoological Record. Volume 

 the thirty-seventh. Litteratur 1900. London. — 24 p. Disposition 

 wie 1899. Die Lücken des Berichts sollen im nächsten Jahr aus- 

 geglichen werden. 



— (3). Zoological Results based on material from New 

 Britain, New Guinea, Loyalty Islands and elswhere, coUected during 

 the years 1895, 1896 and 1897. Part IV. Cambridge 1900. 4. 

 p. 357—530, 20 t. u. 5 f. Siehe Thornely, Hickson (4). 



Wilson, F. V. Marine Biology at Beaufort. — The American 

 Naturalist Vol. 34, May 1900 (No. 401) p. 339—360, Textf 1. 



Lage von Beaufort. Die Station. Verzeichniss der Publikationen 

 aus Beaufort. Die Fauna: . . . Hydrozoa, Scyphomedusae p. 350. . . 

 Die Flora. Werth biologischer Stationen. F, 0, B. 



Yearhook of the Scientific and Learned Societis of Great 

 Britain and Ireland, comprising lists of the papers read during 1898 

 before societies engaged in fourteen departments of research with 

 the names of their authors. 16. annual issue. London, Ch. Griffin 

 & Co., 1899. VI + 287 p. in 8'\ Price 71/2 sh. — Leider ohne Index. 



Zacharias, Otto. Trichodina pediculus Ehrbg. als Mitglied des 

 Planktons der Binnenseen. — Biologisches Centralblatt 20. Band 

 (No. 13) 1900 p. 463. — Referat: F. Zschokke, Zoologisches Central- 

 blatt 7. Jahrgang 1900 p. 596. 



Dieser Ektoparasit von Hydra kommt gelegentlich auch voll- 

 kommen freilebend und in erstaunlicher Anzahl als Plankton- 

 bestandtheil vor: 1898 im Hertha-See (Rügen), 1900 Stuhmer Seen. 



