154 International Code of Nomenclature 



Appendix C. Opinions 9—1 1 . 



Ross, R. in Nomenclatural Comments. Conservation of GnlUonelln. Ibid. 



3 (2, 3): 117-1 19. 1953. 

 Judicial Commission. Opinion 9. J bid. 4 (3-4) :147. 1954. 



OPINION 10 



Invalidity of the Bacterial Generic Name Mullerina de 

 Petschenko 1910 and of the Species Name Mullerina paramecii 



De Petschenko (1910) published the name Mullerina for a genus of 

 bacteria and included one species M. paramecii. In this preliminary 

 paper he stated that a more extensive description of the organism 

 would be given later. In a subsequent paper (1911) the names 

 Drepanospira and Drepanospira muelleri were proposed and used. 

 An Opinion was asked as to the nomenclatural status of these names 

 for the organisms described. A preliminary statement was issued by 

 the Editorial Board (1952) . The following Opinion was approved 

 by the Judicial Commission at its meeting on 5th September, 1953. 



Opinion 10. 



The generic name Mullerina de Petschenko 1910 and the species name Mul- 

 lerina paramecii de Petschenko 1910 were not accepted by the author, hence 

 were not validly published and are without standing in nomenclature. The 

 later names Drepanospira de Petschenko 1911 and Drepanospira muelleri 

 de Petschenko 1911 were validly published and are not later synonyms. 



REFERENCES 



De Petschenko, Boris. Contributions a I'etude de I'immunite chez les proto- 

 zoaires. Zentr. f. Bakt. Abt. I. Orig. 56:90-92. 1910. 



. Drepanospira millleri n. g., n. sp. parasite des Parameciums; contri- 

 bution a r^tude de la structure des bact^ries. Arch. f. Protistenkunde 

 22:248-298. 1911. 



Editorial Board. The generic names Miillerina and Drepanospira in bac- 

 teriology. Preliminary Statement. File No. 52. Internatl. Bull. Bact. 

 Nomen. and Tax. 2 (1) :9-10. 1952. 



. Summary of Opinions and Preliminary Statements. Ibid. 3 (2. 3) :81. 



1953. 



Joint Secretaries. Minutes of the Judicial Commission Meetings held in Rome 

 (1953). Ibid. 3 (4) :150. 1953. 



Judicial Commission. Opinion 10. Ibid. 4 (3-4) :147. 1954. 



OPINION 11 



Nomenclature of Species in the Bacterial Genus Shigella 



A request for an Opinion as to the correct names of certain species 

 in the genus Shigella was made by Boyd and Cowan (1951) . It was 

 supported by the recommendations of the Shigella Commission of 

 the Enterobacteriaceae Subcommittee (1951). A Preliminary State- 

 ment was published (1951). The Judicial Commission in its meet- 

 ing on 5 September 1953, approved the following Opinion. 



