Bacteria and Viruses 79 



Recommendations 1 6c, 1 6d, 1 6e. Citation of Authors and Names 



Recommendation 16c. A nomen nudum (naked name) has been de- 

 fined in zoology as a name published without any definition, de- 

 scription or indication of the taxon to which it is intended to apply, 

 and hence without status in nomenclature. 



Example: Fischer 1895 proposed the generic name Clostrinium to 

 include rod-shaped bacteria with a single polar flagellum and with 

 cells which become spindle-shaped when sporulation occurs. No 

 species was named by the author and none has since been described. 

 It may be regarded as a nomen nudum. 



Recommendation 16d. 



Example: Guillebeau 1890 proposed the name Chlorobacterium for 

 a bacterial genus. The generic name Pseudomonas Migula 1894, a 

 later synonym of Chlorobacterium Guillebeau, was designated as 

 a nomen generis conservandum (conserved name of a genus) , and 

 the generic name Chlorobacterium Guillebeau placed in the list of 

 nomina generum rejicienda (rejected names of genera) . A correct 

 citation would be Pseudomonas Migula 1894 nom. cons. 



Recommeyidation 16e. Authors sometimes spell names of taxa dif- 

 ferently from the original or the accepted spelling. In some cases the 

 change is intentional. For example, Enderlein 1917 preferred the 

 spelling Corynobacterium of the generic name Corynebacterium 

 Lehmann and Neumann 1896. In a list of synonyms each name should 

 be spelled exactly as published by its author. Freqtiently the word sic 

 in parentheses is appended to the citation to indicate that the spell- 

 ing given is that of the author and not a misprint. 



