- Volume 12, Issue 2, 1962

Proposals are made regarding the nomenclature and taxonomy of the genus Serratia Bizio (type species Serratia marcescens Bizio) which is placed in the tribe Klebsielleae Trevisan.

The biochemical characters of the bacteria of the tribe Proteeae are tabulated in order that conclusions may be drawn as to their taxonomic relationships. The evidence indicates that Proteus vulgaris, P. mirabilis, P. rettgeri and Providencia all belong in a major subdivision of the family Enterobacteriaceae of tribal rank which justifies the recognition of the tribe Proteeae.. The biochemical characteristics include Providencia in the tribe. The biochemical differences between the above-mentioned members are at generic level and the division of the tribe into four genera — Proteus, Morganella, Rettger ella, Providencia — seems to be justified. P. vulgaris and P. mirabilis may be considered as two biogroups of the genus Proteus. The serotypes of the genera are composed of many i nfra subspecific entities such as biogroups, biotypes and phage types; they are in reality more inclusive taxa and should be regarded as species. Proposals for the classification and nomenclature of the tribe Proteeae are outlined.

A new Salmonella serotype, Salmonella travis (4, 5, 12:g, (p), z51:1,7) is described. The factor z51 is closely related to Arizona H antigen 13. This factor also is present in Salmonella alamo, Salmonella new-mexico, Salmonella wayne, and Salmonella maricopa. The antigenic formula for phase 1 of these types is emended to g, (p), z51. The method of preparation of factor serum for antigen z51 is described.

The first in a series of lists of the names of the type cultures of bacteria which have been deposited in the American Type Culture Collection (ATCC) is presented. The names of 78 species, 4 subspecies and 4 infrasub specific taxa are listed in four categories: 1) type cultures (54), 2) neotype cultures (3), 3) proposed neotype cultures (11), and 4) suggested neotype cultures (18). For each entry the scientific name, the various strain designations, the name and address of the depositor, the date when the culture was received by the ATCC and pertinent lite rature citations are given.