NO. I OPINIONS 68 TO yj 29 



The same list was submitted in Circular Letter no. 10, dated July, 

 1 91 5, addressed to the members of the International Commission on 

 Medical Zoology (Parasitology). 



The list has also been submitted to Dr. Hassall, Secretary to the 

 Advisory Committee on the Nomenclature of the Ixodoidea, and he 

 reports favorably upon them. Finally the names were submitted to 

 Doctor Jordan, Secretary to the International Commission on Ento- 

 mological Nomenclature, and word has been received from him 

 recommending that the Commission proceed to vote on the names in 

 question. 



Not a single objection or cjuestion of any kind has been received 

 at the Secretary's office in regard to these names. 



All of the generic names have been verified personally by the 

 Secretary to the Commission on Zoological Nomenclature, and he 

 considers them nomenclatorially correct and valid. 



Amblyomrna Koch, 1844a, 223-231 (Arch. Naturg.), type Acarns cajcnncnsis 



Fabricius, 1787a. 

 Argas Latreille, 1796a, 178 (Precis), type Acarus refle.vus Fabricius, 1794. 

 Dermacentor Koch, 1844a, 235-237, type Acarus rcticiilatus Fabricius, 1794. 

 Hssniaphysalis Koch, 1844a, 237, t5'pe H^. concinna Koch, 1844. 

 Hyalonima Koch, 1844a, 220-223, type Acarus segypthis Linn., 1758. 

 Ixodes Latreille, 1796a, 179, type Acarus ricinus Linnsus, 1758. 

 Rhipicentor Nuttall and Warburton, 1908, 398 (Proc. Cambridge Phil. Soc, 



vol. 14), int. R. bicornis N. & W., 1908. 

 Rhipicephalus Koch, 1844a, 238-239, type Ixodes sanguineus Latreille, 1806. 



Discussion. — In view of the foregoing premises, and on basis of 

 the study given by specialists in each of the three groups in question, 

 the Secretary recommends that the foregoing names be placed in the 

 Official List of Generic Names. 



Opinion written by Stiles. 



Opinion concurred in by 13 Commissioners: Allen, Apstein, 

 Bather, Blanchard, Dautzenberg, liartert, Horvath, Hoyle, Jordan 

 (D. S.), Jordan (K.), Monticelli, Skinner, Stiles. 



Opinion dissented from by no Commissioner. 



Not voting, 5 Commissioners : Llandlirsch, Kolbe, Roulc, Simon, 

 Stejneger. 



Apstein: Sollen die Off. Listen von Gattungsnamen wirklich 

 durch Unmengen beliebiger Namen beschwert werden? Von den 

 92 Namen Crustaceen sind die meisten wohl iiberfliissig, da kein 

 Zweifel moglich ist. Es ist eine Kleinigkeit niehrere 1,000 Namen 

 zu notieren, aber was ist daniit erreicht? Entweder soil man eine 

 kleine Zahl wichtiger, all bekannter und streittiger Gattungen auf- 

 nehmen oder alle Gattungen, dann crgiebt sich ein dicker Band. 



