748 International Code of Nomenclature 



Appendix C. Opinions A, B, C 



These functions were somewhat amplified in the International 

 Bacteriological Code of Nomenclature approved at the Fourth Inter- 

 national Congress of Microbiology held in Copenhagen in 1947. 



The International Committee (1953) at its meeting in Rome dur- 

 ing ithe sessions of the Sixth International Congress of Microbiologists 

 directed that the Opinions voted by this Committee before adoption 

 of the Bacteriological Code should be designated by letters, those 

 issued by the Judicial Commission to be numbered. 



OPINIONS ISSUED BY THE INTERNATIONAL COMMITTEE ON 

 BACTERIOLOGICAL NOMENCLATURE IN 1936 



OPINION A 



Conservation of the generic name Bacillus Cohn 1872, designation of the 



type species, and of the type strain of the species 

 On the proposals of Prof. R. E. Buchanan and Prof. H. J. Conn rela- 

 tive to the status of the genus Bacillus and its type species Bacillus 

 subtilis, it was agreed that: 



(a) Bacillus Cohn 1872 should be designated as a genus conservondum. 



(b) The type species of Bacillus should be designated as Bacillus subtilis 

 Cohn 1872 emendavit Prazmowski 1880. 



(c) The type (or standard) strain should be the Marburg strain. 



(d) Cultures of the type (or standard) strain of Bacillus subtilis together 

 with complete description should be maintained at each of the recog- 

 nized Type Culture Collections. 



(e) The genus Bacillus should be so defined as to exclude bacterial species 

 which do not produce endospores. 



(f) The term Bacillus should be used as a generic name and that it should 



be differentiated from the terms "bacillus," "bacille" and "Bazillus" 

 used as morphological designations. 



OPINION B 



Generic homonyms in the group Protista 



On the proposal by Prof. F. Mesnil relative to generic homonyms, it 

 was agreed that: 



(a) Generic homonyms are not permitted in the group Protista. 



(b) It is advisable to avoid homonymy amongst Protista on the one hand, 

 plant or animals (Metazoa) on the other. 



OPINION C 



Capitalization of specific epithets derived from names of persons 

 Prof. R. S. Breed proposed and it was agreed that: 



While specific substantive names derived from names of persons 

 may be written with a capital initial letter, all other specific names 

 are to be written with a small initial letter. 



