ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 659 



Modification of Tentacular Apparatus in Madrepora.* — Arrnand 

 Krempf refers to a strange condition observed by Fowler in Madrepora 

 ■durvUlei in 1886, and re-observed by the author in three other species. 

 A portion of the buccal disk has been converted by a fusion of two ten- 

 tacles into a U-shaped tunnel, and insinuated into the body of the polyp. 

 Analogous modifications have been observed by Vaillant in Oculininge. 



Systematic Relationships of Antipatharia.^ — Louis Roule has 

 made a study of Stichopathes richardi sp. n., and has been led from this 

 to general reflections on the position of Antipatharians. As Brook in- 

 dicated (188D) these have relationships with Ceriantharia ; and E. van 

 Beneden (1897) regarded Ceriantharia and Antipatharia as two tribes 

 •of the order Ceriantipatharia, which along with Rugosa and Scypho- 

 medusas form the class Scyphactiniaria, comparable to the classes 

 Octactiniaria and Zoanthactiniaria within the group Scyphozoa. 



Roule maintains that the class Anthozoa should be kept distinct 

 from Scyphomedusa?, that the Antipatharia represent nowadays the 

 simplest Anthozoa, that the Ceriantharia come nearer to the Antipa- 

 tharia than do any other extant Anthozoa, but that the Rugosa were 

 nearer still. Rugosa, Ceriantharia, and Antipatharia may be ranked 

 together as a sub-class " Protanthozoaria" and opposed to the " Metan- 

 tliozoaria" namely the Octactiniaria and the Zoanthactiniaria. 



Protozoa. 



Handbook of Fish-Diseases. +— Bruno Hofer has done a useful and 

 welcome piece of work in compiling a handbook of the diseases of fishes. 

 He discusses (1) general infectious diseases, (2) special diseases of par- 

 ticular organs, (3) the crustacean-pest {Bacterium pestis astaci), and (4) 

 the more important precautionary measures to be taken in regard to 

 various diseases, such as salmon-disease. 



Mitosis in FlagellataJ — B. Grassi and A. Foa describe with strik- 

 ing figures the remarkable process of division in Joenia annectens Grassi. 

 The behaviour of the large spindle which develops tangentially to the 

 nucleus and passes through remarkable changes is especially interesting, 

 and may, as the authors suggest, supply some important data for cyto- 

 logical discussion. 



Basal Corpuscles in Connection with Cilia. |] — -P. Mitrophanow 

 supports the view that the minute .corpuscles found at the base of the 

 cilia of Parammcium, Vorticella, etc., and the " BasalMrperchen" of 

 ciliated cells in Metazoa, are of mechanical importance as bases of in- 

 sertion ("points d'appui") for the vibratile organs. 



Chlamydomonas in Water-supplies.il — F. S. Hollis describes two 

 growths of Chlamydomonas in water-supplies in Connecticut. These 



* Comptes Eendus, cxxxviii. (1904) pp. 1518-21. f Tom. cit., pp. 1621-2. 



% Handbuchder Fischkranklieiten, Verlag. der Allgem. Fischereizeit. (Miinchen, 

 1904), 18 coloured plates and 22 figs, in text). See for review, Vein. Zool.-Bot. Ges. 

 Wien, liv. (1904) pp. 358-61. 



§ Atti (Rend.) B, Accad. Liucei. xiii. (1904) pp. 241-53 (17 figs.). 



|| Arch. Zool. Expe'r., xxxii. (1904) Notes et Revue, No. 10, pp. clxvii.-ix. (2 figs.). 



•J Trans. Amer. Micr. Soc, xxiv. (1903) pp. 13-16. 



