360 GENERAL SYSTEMATIC BACTERIOLOGY 



Malleomyces. According to Trevisan (1879, p. 144) this name was 

 applied by Hallier to the organism causing glanders, with the name 

 Malleomyces equestris. It is possible that this should displace the much 

 less appropriate Pfeifferella as a generic designation for the glanders 

 group. 



Mantegazzaea. A genus created by Trevisan (1879, p. 137). The 

 description is as follows: 



Somatia fusiformia vel cylindrica, distincte articulata, valida abbreviata, 

 recta, segregata. Oss. VI appartegono due specie: Mantegazzaea Cienkowskii 

 e M. articulata (Bacterium articulatum e B. triloculare Ehrenb., (1831). La prima 

 ricorderebbe alquanto per la forma Bacterium roseum e Bacterium fusiforme di 

 Warming, la seconda Bacterium Lineola. Da Bacterium pero differiscono perche 

 evidentemente composte di piu cellule, ne ad alcun altro genere di Vibrioniee 

 potrebbersi riferire. II nome generico ricorda Paolo Mantegazza, che prime di 

 tutti (1851) investigo e descrisse le spore perduranti delle Batteriacee in ger- 

 minazione. 



Later (1889, p. 12) he included it as the fourth genus of the tribe 

 Bacillee. Five species are listed. The generic description is "Baculi 

 fusiformi con protoplasma uniformemente diffuso. Spore ignotae." 



The synonomj^ given by De Toni and Trevisan (1889, p. 942) is as 

 follows : 



Rhahdomonas Cohn (1875) Beitr. 1, 3. p. 167. (nomen ineptum). 

 Rhahdochromatium Winogr. (1888) Beitr. 1. p. 100 et. in Bot. Centralbl. 

 1889, N. 6, 172. 



The diagnosis is as follows: "Baculi fusiformes vel subcylindracei, 

 recti, plasmate uniformiter diffuse, divisione transversali sese multi- 

 plicantes. Sporae ignotae. 



Two subgenera are recognized, Rhahdochromatium with three species 

 and Eumantegazzaea with three. 



This generic name has not been generally recognized by writers on 

 bacterial nomenclature. Vuillemin (1913, p. 521) has proposed that 

 this name be retained as one of the "formogenera conservanda" with 

 Mantegazzaea (Bacillus) hastilis (Seitz, 1889), the fusiform bacillus 

 of the medical writers as the type species. This last suggestion would 

 be invalid because of the earlier use of the name Fusiformis. 



The type species (first species named and described) is Mantegazzaea 

 Cienkowskii Trevisan. It is an organism occurring upon the surface 

 of putrefying meat. Its identification is probably quite uncertain. 

 It is quite improbable that it is related to the socalled "fusiform'* 

 mouth bacteria, and its use should not be revived. 



