Zoologischer Anzeiger 



herausgegeben 



von Prof. Eugen Korscheit in Marburg. 



Zugleich 



Organ der Deutschen Zoologischen Gesellschaft. 



Bibliographia zoologica 

 bearbeitet von Dr. H. U. Field (Concilium bibliographicum) in Zürich. 



Verlag von Wilhelm Engelmann in Leipzig. 



XXIX. Band. 6. Juni 1 905. Nr. 1. 



Inhalt: 



I. wissenschaftliche Mitteilnngen. 



1. Hendersou, Notes on the Infusoria of Frei- 

 burg in Breisgau. (With 6 figs.) S. 1. 



2. Stnder, Üher einen Hund aus der paläolithi- 

 schen Zeit Rußlands. CaniS Poutiatùii. (Mit 

 2 Tafeln.) S. 24. 



3. CJadzikienicz, Zur Phylogen:e des Blutgefäß- 

 systems bei Arthropoden. S. 36. 



Literatur S. 1-16. 



I. Wissenschaftliche Mitteilungen. 



1. Notes on the Infusoria of Freiburg in Breisgau. 



By W. D. Henderson, M.-A., B. Sc, Carnegie Research Scholar, 



Aberdeen University. 



From the Zoological Institute Freiburg in Breisgau. 



(With 6 figs.) 



eingeg. 11. März 1905. 



The notes described in the following pages are the results of work 

 undertaken during the present winter at the suggestion of Professor 

 Weismann. 



I wish here to record my best thanks to Professor Wei s mann 

 for valuable advice, and to Professor Grub er for placing at my disposal 

 his valuable collection of works on Infusoria. 



Methods of Research. 

 The samples were obtained by means of a silk net, and the con- 

 tents were placed in aquaria in the Laboratory. The aquaria were 

 examined daily for a fortnight, and in some cases the examination was 

 carried on for a longer period. It seems better not to continue the exa- 



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