1 82 BACTERIOLOGY 



162. Bact. Giardii 



Photobact. of Giardi : Compt. rend. Soc. Biol., 1896. 

 Bact.phosfhorescens-Giardi: Kruse, Flugge, Die Mikroorganismen, 1896. 



Morphology. Bacilli and cultural characters like 161, but bacilli smaller and 



more coccoid. 

 Habitat. Isolated from crustacex. 



163. Bact. Lepierrei 



B , flitorescens paihogine Lepierre. 



B. fluorescens or Lepierre : Kruse, Flugge, Die Mikroorganismen, 1896. 



Morphology. Bacilli 1.5 : 2.0-3.0 /t; not stained by Gram's method. 



Gelatin colonies. Round to yellowish brown, becoming, in three days, fluores- 

 cent ; in s days the colonies are green. 



Potato. No fluorescence, becoming black. 



Bouillon. A fluorescence of the medium. 



Milk. Not coagulated, alkaline ; no fluorescence. Indol absent. 



Glucose-bouillon. No gas. Optimum temperature 20°-3o°. No fluorescence 

 at 37°. 



Pathogenesis. Inoculation of guinea pigs, death in 1-6 days, with abscess of 

 liver and peritonitis. 



164. Bact. iris (Frick) 



B. iris Frick: Virchow's Archiv, CXVI, 1B89, 290. 



B, Jluorescens-crassvs Kruse : Flugge, Die Mikroorganismen, 1896, 294. 



Morphology. Bacilli very small, slender. 



Gelatin colonies. Of the aerogenes type ; a green color, slowly developed. 



Gelatin stab. Along line of stab no growth ; surface growth an aerogenes- 



like bead ; a green fluorescence of a yellowish brown, to a dark green 



color. 

 Potato. Growth light brown. 

 Bouillon. No membrane ; not colored. 

 Habitat. Air and water. 



165. Bact. Pflugeri (Ludwig) 



M. Pflugeri Ludwig: Hedwigia,-i884, No. 3. 



Photobact. Pflugeri Beijerinck: Centralblatt f. Bakteriologie, VIII, 1890, 716. 



Morphology and cultural characters like Bact. phosph^rescens, but somewhat 



larger, longer, and more slender. Grows on potato. 

 Habitat. Isolated from fish. 



