GENERAL SYSTEMATIC BACTERIOLOGY 315 



Vuillemin (1913) suggested the revival of Trevisan's name Mante- 

 gazzaea for this group as one of the "formogenera conservanda" with 

 the fusiform bacillus of the medical writers as the type. The name 

 as used by Trevisan, however, was used principally for certain of the 

 sulfur bacteria and not for forms related to this type. 



Winslow et at. (Committee Soc. Am. Bact., 1917, p. 555, 1920, p. 

 199) and Bergey et al. (1923, p. 388) recognize this genus with the 

 following description: 



Obligate parasites. Cells usually elongate and fusiform, staining somewhat 

 irregularly. Filaments sometimes formed; non-branching. Non-motile. No 

 spores. Growth in laboratory media feeble. 



The Type species (?) is Fusijormis termitidis Hoelling. 



Buchanan (1918, p. 43) used the following description: 



Obligate parasites. Cells usually elongate and fusiform. Gram-negative? 

 Anaerobic. Non-motile. No spores. In some respects approaching the spiro- 

 chetes in morphology. 



The type species is Fusijormis termitidis Hoelling (possibly F. dentium). 



Castellani and Chalmers (1919, p. 959) have suggested the name 

 Bacteroides q.v. for this group. 



Apparently Fusijormis constitutes a valid generic designation, with 

 Fusijormis termitidis? Hoelling as the type. 



Gaffkya. A genus of bacteria proposed by Trevisan (1885, p. 105) 

 based upon Micrococcus tetragenus Gaffky as a type. The description 

 of the genus is: "Colonie di 4 cocchi globosi, awiluppati da una cap- 

 sula mucosa, ialina, globulosa, da ultimo liberi. Specie unica." The 

 diagnosis given by De Toni and Trevisan (1889, p. 1042) follows: 



Cocciglobosi vel divisionis tempore ovoidei, in muco matricali nidulantes, 

 quaterni, cystidibus specialibus parvulis, gelatinosis, tenuiculis, demum dila- 

 bentibus, solitariis, nunquam in acervos consociatis, obducti. Cystides univer- 

 sales nuUae. Coccocorum divisio in duas directiones. Sporae ignotae. 



Four species are included. The type species may be taken as Gaf- 

 fkya tetragena (Gaffkj^ Trevisan. Should this organism prove to be 

 entitled to generic recognition, the genus Gaffkya would be vahd. 

 The name does not appear to have been used by other authors. It is 

 rejected by Erwin F. Smith (1905, p. 174). 



Gaffkyeae. The second subtribe of the tribe Ascococceae proposed 

 by Trevisan according to De Toni and Tre\asan (1889, p. 1042) with 

 the following diagnosis: "Cocci cystidibus specialibus obducti, Cystides 



