Bacteria and Viruses 157 



Appendix C. Opinion 13. 



son or another, have been ignored and not employed. The evaluation 

 and appropriate disposition of these names from the standpoint of 

 their legitimacy is an important problem. As an aid to its solution, 

 Trevisan's "Generi e le Specie delle Batteriacee" Avas photograpically 

 reproduced (1952). This paper was originally published as a sepa- 

 rate brochure by the author; copies are rare (none known in 

 America) . The Editorial Board (1953) discussed the status of the 

 se\eral generic names proposed by Trevisan, and suggested a series 

 of draft proposals as to their disposition. The Judicial Commission 

 was asked to review these proposals and, as far as practicable, to fix 

 the present status of each of the names. The Commission has placed 

 the names in four groups. Those that can be adequately identified, 

 ha\e priority, and are in current use, are placed in the list of generic 

 names to be conser\'ed. Those that are later synonyms or homonyms 

 are listed as illegitimate. Those that cannot be identified with rea- 

 sonable definiteness are placed in the list of rejected generic names. 

 The status of two names is left indeterminate and requiring more 

 study. The Judicial Commission at its meeting of 5 September 1953 

 approved the following Opinion. 



Opinion 13. 



1. Generic names proposed by Trevisan placed in the list of conserved 

 generic names (nomina generum conservanda). 



Names of Genera and Subgenera Type Species 



Beggiaton Trevisan 1842 Beggiatoa alba (Vaucher) 



(p. 56) Trevisan 1845 



(Oscillaria alba Vaucher 1803) 

 Klebsiella Trevisan 1885 Klebsiella pneumoniae 



(p. 105) (Schroeter) Trevisan 1887 



(Bacterium pJieumoniae 

 croiiposae Zopf 1885) 

 KurtJiia Trevisan 1885 Kurthia zopfii (Kurth) 



(p. 92) Trevisan 1885 



(Bacterium zopfii Kurth 1883) 



Leptotrichia Trevisan 1879 Leptotrichia buccalis (Robin) 



(p. 138) Trevisan 1879. (Leptothrix 



buccalis Robin 1853) 

 Xeisseria Trevisan 1885 Neisseria gonorrhoeae 



(p. 105) Trevisan 1885 



Pasteurella Trevisan 1887 Pasteurella cholerae-gallinar- 



(P- 94) urn Trevisan 1887^ 



2. Generic names proposed by Trevisan placed in list of rejected generic 

 names (nomina generum rejiciendo). 



Babesia Trevisan 1889 Babesia xanthopyretica Tre\i- 



(p. 29) san 1889. 



