FAMILY ACTIXOMYCETACEAE 



925 



Genus II. Actinomyces Harz. 



(Harz, in Bollinger, Centbl. f. med. Wissensch., 15, 1877, 485; Harz, Jahresber. d. 

 Miinch. Thierarzneischule for 1877-78, 1879, 125; not Actinomyce Meyen, Linnaea, 

 2, 1827, 442; Discomyces Rivolta, Clinica Veter., Milano, /, 1878, 208; Actinocladothrix 

 Afanasiev, St. Petersb. med. Wchnschr., 4, 1887, 323; Micromyces Gruber, Cent. f. 

 Bakt., 10, 1891, 648; not Microtmjces Dangeard, Le Botaniste, 1, 1888, 55; Actino- 

 bacierium Haas, Cent. f. Bakt., I Abt., Orig., 40, 1906, 180; Carieria and Carterii 

 Musgrave, Clegg and Polk, Philippine Jour. Sci., Ser. B, Med. Sci., 3, 1908, 470; 

 Cohnistrepiothrix Pinoy (in part), 1911, see Pinoy, Bull. Inst. Past., 11, 1913, 929; 

 Anaeromyces Castellani. Douglas and Thomson, Jour. Trop. Med. Hyg., 24, 1921, 

 149; Brevistreptothrix Lignieres, Ann. Parasit. Hum. Comp., 2, 1924, 1.) 



True mycelium produced. The vegetative mycelium fragments into elements of 

 irregular size and may exhibit angular branching. Xo conidia produced. Not acid- 

 fast. Anaerobic to microaerophilic. Pathogenic for man and animals. 



The type species is Actinomyces bovis Harz. 



Key to the species of geinis Actinomyces. 



I. Colonies soft, smooth, uniform, not adherent to medium. Xo aerial hyphae. 



1. Actinomyces bovis. 



II. Colonies tougher in texture and warted in appearance, adherent to medium. 

 Scanty aerial growth of hyphae. 



2. Actinomyces israeli. 



1. Actinomyces bovis Harz. (Harz, 

 in Bollinger, Cent. f. med. Wissensch., 

 15, 1877, 485; Jahrb. d. Miinch. Thier- 

 arzeneischule, 1877, 781 ; Discomyces bovis 

 Rivolta, La clinica Veterinaria, 1, 1878, 

 169 or 208; Bacterium actinocladothrix 

 Afanasiev, St. Petersburger Med. 

 Wochnschr., 13, 1888, 84; Nocardia ac- 

 tinomyces Trevisan, I generi e le specie 

 delle Batteriacee, Milan, 1889, 9 ; Strepto- 

 trix actinomyces Rossi Doria, Ann. d. 

 1st. d'Igi. Sper., Univ. di Roma, 1, 1891, 

 425; Cladothrix bovis Mace, Traite de 

 Bact., 2nd ed., 1891, 666; Oospora bovis 

 Sauvageau and Radais, Ann. Inst. Past., 

 Paris, 6, 1892, 271; Actinomyces bovis 

 sulphureus Gasperini, Cent. f. Bakt., 15, 

 1894, 684; Nocardia bovis Blanchard, 

 in Bouchard, Traits de Path. G^n^rale, 

 2, 1896, 857; Actinomyces sulphureus 

 Gasperini, Atti Soc. Tosc. Scienz. Nat., 

 P. v., 11, 1896; Cladothrix actinomyces 

 Mace, Traite de Bact., 3rd ed., 1897, 

 1038; Streptothrix actinomycotica Fouler- 

 ton, Lancet, 2, 1899, 780; Streptothrix 

 bovis communis Foulerton, Jour. Comp. 

 Path, and Therap., 14, 1901, 50; Strepto- 



thrix bovis Chester, Man. Determ. 

 Bact., 1901, 361, Streptothrix sulphurea 

 Caminiti, Cent. f. Bakt., I Abt., Orig., 

 44, 1907, 197; Sphaerotilus bovis Engler, 

 Syllabus der Pflanzenfam., 5 Aufl., 

 1907, 5; Nocardia sulphurea Vuillemin, 

 Encj-clopedie Mj'cologique, Paris, 2, 

 1931, 129; Proactinomyces bovis Henrici, 

 Biology of Bact., 2nd ed., 1939, 409.) 

 From Latin bovis, of the ox. 



Synonyms previous to 1919 as given by 

 Breed and Conn, Jour. Bact., 4, 1919, 

 596. 



Probable synonym : Brevistreptothrix 

 spitzi Lignieres, Annales de Parasit., 2, 

 1924, 2 {Streptothrix spitzi Lignieres and 

 Spitz, Cent. f. Bakt., I Abt., Orig., 35, 

 1904, 453; Actinobactcrium isreali var. 

 spitzi Sampietro, Ann. Igiene, 18, 1908, 

 391; Discomyces spitzi Brumpt, Precis 

 de Parasitol., Paris, 1st ed., 1910, 847; 

 Actinomyces spitzi Lieske, Morphol. u. 

 Biol. d. Strahlenpilze, Leipzig, 1921, 

 32; Oospora spitzi Sartory, Champ. 

 Paras. Homme et Anim., 1923, 775). 

 Found in mycosis of the upper jaw of 

 oxen in Argentina. 



