GENERAL SYSTEMATIC BACTERIOLOGY 259 



Cladophytwn comatum. Filaments delicate, regular, colorless, simple, more 

 frequently branched near the base at very acute angles, growing in more or less 

 dense bunches from a yellowish rounded or oval, attached, nuclear body varying 

 in size from ybVtt to -^hs of an inch. Lateral ramuli very minute, measuring in 

 length from rs-iryo to sAs of an inch, and passing off at acute angles. No indi- 

 cation of articulation or interior structure. 



Length from tvK to rlij of an inch. 



Habitat. Growing more or less profusely from the mucous membrane of the 

 small intestine of Julus marginatum, occasionally from the same surface at the 

 commencement of the large intestine, from any part of the exterior surface of 

 entozoa infesting those cavities, and also from any part of the surface of Entero- 

 brus elegans. 



A second species, Cladophytum ramosissimum was later (1849, p. 

 250) described by Leidy, but still later (1851, p. 37) was made a synonjon 

 of CI. comatum. The generic description (1851, p. 37) is: "Thallus 

 attached by means of one or more granules, filamentous, simple, with 

 minute lateral ramuli, or branched, inarticulate, amorphous in structure. 



This genus is described as follows b}' Robin (1853, p. 358) : 



Nouveau genre voisin des Mj'codermata. On sait que le genre Mycoderma, 

 de Persoon, n'etait pas forme par des especes de Champignons comme il le croyait, 

 mais bien par des Algues appartenant aux genres Leptomitus et Hygrocrocis. 



Filaments petits fixes par un noyau arrondi, simples ou compliques vers leur 

 point d'insertion par de petits ramuscules lateraux inarticules, sans structure 

 interieure d6finie. 



Apparently the organism has not been studied by later writers. 

 The exact position and relationships of this organism are uncertain. 

 The type species is Cladophytum comatum Leidy. 



Cladothriceae. A subtribe of the tribe Vibrionieae created b}' 

 Trevisan (1879, p. 137). The description given is "Somatia libera 

 Pseudo-ramosa." Two genera are included, Cladothrix and Strepto- 

 thrix. 



Cladothrichaceae. A name proposed by Zopf (1884, p. 45) with 

 the aberrant spelhng Cladothricheen as a family to include the single 

 genus Cladothrix. He states: "Sie zeigen Coccen-, Stabchen-, Faden- 

 und Schraubenformen. Die Fadenform ist mit Pseudoverzweigungen 

 versehen." In 1885, p. 51, he adds "Sporenbildung nicht nachge- 

 wiesen." 



Schroeter (1886, p. 173) also used this name with the speUing Clado- 

 thrichacei and the description "Faden durch falsche Astbildung ver- 

 zweigt. Die weiteren Charaktere die der VI Ordnung." 



