ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 341 



Schizophy ta. 

 Schizomycetes. 



New Types of Intestinal Bacteria.* — In a contribution to the study 

 of intestinal intoxication, A. Distaso discusses the bacterial flora of the 

 intestines in healthy persons and others, and describes a number of new 

 species. StrepiohaciJJus longns is a non-motile capsulated Gram-positive 

 organism which grows in long chains. Bacillus dimorphus var. longa. 

 Gram-positive and non-motile, occurs in the form of granular rods, 

 which may attain a considerable length. B. angulosus is a remarkable 

 organism — stout, and provided with a very well-marked capsule. Pairs — 

 the individuals forming an angle with one another — are frequently seen. 

 B. cornutus, a slender irregular type, showing at times pairs like the 

 foregoing. B. hullosus is a small rectangular organism, showing deep 

 polar staining. Long forms, with a marked swelling in tlie middle or at 

 one extremity, are also found. Some individuals show bifurcation at one 

 end. B. thetaiotaomicron is an elliptical organism which exhibits certain 

 minor variations. B. variegatus, at times short and uniform, may occur 

 in the form of long, sinuous filaments. Other types are Dlplobacillus 

 acuminatiis, B. variabilis, B. pseudoramosus, B. anaerohicus tenuis, 

 B. Isevis, and Staphylococcus asaccharolyticus. 



Bacterium actinomycetem comitans sp. n.f — In four cases of acti- 

 nomycosis Pt. Klinger has found, together with Streptothrix actinomyces, 

 in the interior of glands, a bacterium to which he has given the above 

 name. This is an organism occurring in coccal and coccobacillary 

 forms. It is not motile, and does not retain the stain with Gram's 

 method. It grows only at 37^ C, and shows characteristic appearances 

 in melted gelatin and on agar slopes. Pure cultures are not pathogenic 

 for laboratory animals. 



Coccobacterium mucosum anaerobicum.J — R. Klinger has given 

 this name to an organism, hitherto undescribed, which he isolated from 

 the pus contained in a cerebral abscess. The organism grows only at 

 blood-heat, under anaerobic conditions, in media to which serum has 

 been added. In glucose-broth indol is formed. Certain carbohydrates 

 are fermented. Cultures possess a high degree of vitality. Morpho- 

 logically, it is a non-motile bacillus, showing considerable variation in 

 form ; coccal types, ovoid bipolar bacilli, and longer curved forms are 

 described. In broth, short chains may be found. Small laboratory 

 animals are killed by subcutaneous, but not by intraperitoneal or intra- 

 venous injection. 



Streptobacterium foBtidum.§-^From various samples of sputum, 

 pleural effusion, meningitic fluid, and from other material, L. Jacque 

 and F. Masay have isolated a small Gram-negative coccobacillus, patho- 

 genic for man or for laboratory animals, to which they have applied the 

 name Streptobacterium fcetiduin. It grows best at 37° 'C, forming chains 



* Centi-alhl. Bakt., He Abt. Orig., Isii. (191^) pp. 433-68. 

 t Centralbl. Bakt.. Ite Abt. Orig., Ixii. (1912) ^jp. 198-200. 

 X Centralbl. Bakt., Ite Abt. Orig., Ixii. (1912) pp. 186-91. 

 § Centralbl. Bakt., Ite Abt. Orig.. Ixii. n.912) pp. 180-6. 



