Zoologischer Anzeiger 



herausgegeben 



von Prof. Eugen Korscheit in Maibm-g. 



Zugleicli 



Organ der Deutschen Zoologischen Gesellschaft. 



Bibliographia zoologica 

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



Verlag von Wilhelm Engelmann in Leipzig. 



XXXV. Band. 7. Dezember 1909. Nr. 7. 



Inhalt: 



I. Wisseuschaftliclie Mitteilungen. 4. Koivarzik, Resultate einerzusaramenf issenden 



1 Cowles, The Movement of the Starfisli, />/(«■- : Bearbeitung der Monotremen. S. 213. 



nastn\ toward the Light. (With 1 figure.) yr Afi+„-i „ « »i t ^-^ ^ 



g ^gj ' 6 \ ^ -" II. Mitteilungen ans Museen, Instituten usw. 



2 Nilsson, Die Fischelsche Alizarinfärbung i 1. Sarasiu, Schutz den Walen. S. 2l(i. 



und ihre Anwendbarkeit für die Polychaet n, 2. VIII. Intern.itionaler Zooloaenkongreß. 



speziell Pectniaria koreiii Mgrn. (Mit 4 Fig.) | g 217 



3. Linnean Society of Xeiv South Wales. S. 222. 



S. 195. 

 3. Schlei]) , Die Reifung des Eies von Rhoilites 



rosae L.' und einige allgemeine Bemerkungen III. Personal-Sotizen. S. 224. 



über die Chromosomen bei parthenogenetischer ' 



Fortpflanzung. (Mit 10 Figuren.) S. -.'03. Literatur. S. 12;i— 144. 



I. Wissenschaftliche Mitteilungen. 



1. The Movement of the Starfish, Echinaster, toward the Light. 



By E. P. Cowl es. Johns Hopkins University, Baltimore. 

 (With.l figure.) 



eingeg. 21. September 1909. 



The purpose of this paper is to describe briefly some experiments 

 undertaken to determine if it is the direction of the light rays or the 

 relative intensity of the light that controls the direction of locomotion 

 of Echinaster crassispina. 



The apparatus used was a rectangular box 41 cm, by 26,5 cm. 

 One end of the box was 26 cm and the other 22 cm high. The top of 

 the box was covered for a distance of 10 cm at the shorter end. From 

 this point to the higher end the top was left open. The box was jjer- 

 fectly light tight except for the ojDening just mentioned, and the inside 

 surface was painted dead black. At one end of the box there was 

 fitted a light tight door, [a] through w^hich the starfishes were introduced. 

 Into the open part of the top of the box a glass container, [b] with 



13 



