Zoologischer Anzeiger 
herausgegeben 
von Prof. Kugen Korschelt in Marburg. 
Zugleich 
Organ der Deutschen Zoologischen Gesellschaft. 
Bibliographia zoologica 
bearbeitet von Dr. H. H. Field (Concilium bibliographicum) in Zürich. 
Verlag von Wilhelm Engelmann in Leipzig. 
XXXVII. Band. 21. November 1911. Nr. 22 | 23. 
Inhalt: 
I. Wissenschaftliche Mitteilungen. 8. Müller, Uber eine vermutliche Varietät von 
1. Woodcock, On an unusual condition observed | Ephydatia fluviatilis. (Mit 5 Fig.) S. 495. 
in Halteridium. (With 22 figures.) S. 465. | 9. Karny, Neue Phloeothripiden-Genera. S. 501. 
9% Simroth, Uber einen eigentümlichen Schalen- | 1102 Viets, Eine Anderung in der Hydracarinen- 
defekt eines Thi wmastus. (Mit 1 Fig.) S. 471. Nomenklatur. S. 501. 
3. La Rue, A Revision of the Cestode family Pro- | Ce ö 
teocephalidae. S. 473. II. Mitteilungen aus Museen, Instituten usw. 
4. Wiedemann, Künstlich bewirkte Frühgebut 1. Wiesner, Notizen über die Fauna der Adria 
bei Lucerta vivipara Jacquin (Bergeidechse.) | bei Rovigno. (Mit 2 Figuren.) S. 505. 
S. 482, 2. Behning, Hydrobiologischer Demonstrations- 
5. Muslow, Chromosomenverhältnisse bei Ancy- und Exkursionskurs a.Vierwaldstättersee.S. 510. 
racanthus cystidicola. (Mit 6 Fig.) S. 484. 3. Linnean Society of New South Wales. S. 511. 
6. Silvestri, Descrizione di nuovi Polydesmoi- È Pi TUE 
ons Loman (Con dia) Wills LESSOUIEISNIOBEAR NS Ss BD. 
7. Viets, Neue Wassermilben aus Kamerun. 8.492. | Literatur S. 65—112. 
I. Wissenschaftliche Mitteilungen. 
1. On an unusual condition observed in Halteridium. 
By H. M. Woodcock, D. Sc., Lister Institute of Preventive Medicine, London. 
(With 22 figures.) 
eingeg. 5. September 1911. 
In a chaffinch which was well infected with Ha/teridium (Haemo- 
proteus) fringillae, | have recently observed an interesting and peculiar 
condition of certain parasites. As this is the first occasion on which I 
have seen exactly this condition, notwithstanding a considerable amount 
of time and attention directed to the study of Halteridium, and as I am 
not aware of its having been noted by any one previously, I think it is 
worth a brief description. 
In the first permanent preparations made! from the blood of this 
particular bird, many of the Halteridia, intermediate-sized forms as well 
as large ones, were found to have two nuclei. By this I do not mean 
merely that they show what I have previously described? as the binu- 
1 The smears were fixed with osmic acid vapour, then passed through absolute 
alcohol, and stained with Giemsa. 
2 Quart. Journ. Micr. Sci., 53, 1909. p. 339. 
30 
+ 
