GENERAL SYSTEMATIC BACTERIOLOGY 305 



to 22°C. Pigments soluble in water, the alcohols, slightly so in chloroform, and 

 insoluble in ether, carbon bisulphide, benzine. Pathogenic for the guinea pig, 

 etc. Isolated from the chemise of a patient at the Hotel-Dieu, Nantes. 



It is not probable that this name is to be regarded as a valid generic 

 name, although it is possible that it might be used for the red bacilli 

 if they are to be accorded generic recognition providing Serratia and 

 Zaoglactina are invalid. It is rejected by Erwin F. Smith (1905, 

 p. 174). 



Erythroconis. A generic name proposed by Oersted (1840, p. 555) 

 for an organism described by him from the Danish coast. The de- 

 scription given is "Character genericus. Massa pulveracea parum 

 mucosa ex corpusculis quadratis rigidis fragilibus per quaterna ag- 

 gregates constans. Genus e familia Diatomerarum analogon Pal- 

 mellae et Tetrasporae." 



His species, Erythroconis Uttoralis is described by Rabenhorst (1865, 

 p. 57) as follows: "Thallo mucoso-grumoso indefinito olivascente famil- 

 iis minimis e cellulis cubico-polygonisi 32 compositis; cytioplasmate 

 aerugineo-viridi. Diam. cell. cu-c. 1/300'" = 0.00029." This later 

 author regards Erythroconis as a subgenus of Merismopedia Meyen 

 among the blue green algae, with the characterization "Species in 

 aqua natantes vel in limo nascentes," and including with it all those 

 species not belonging to ''Sarcina medicorum." 



Winter (1884, p. 50) uses the name Sarcina Uttoralis with the follow- 

 ing description: 



Zellen kuglig order vor derTheilung oval, 1.2/*, selten 2 oder mehr ju in Durch- 

 messer, zu 4, 6, 8, etc., zu Familien verbunden, die ihresseits grossere Colonien 

 (bis zu 64 Tetraden in einer Colonic) bilden. Plasma farblos, aber in jeder Zelle 

 1-4 rothe Schwefelkorner. In faulenden Meerwasser. 



De Toni and Trevisan (1889, p. 1049) regarded this generic name as 

 a sjTionym of Lampropedia Schroeter, though this latter author did 

 not include Oersted's species. 



Migula (1900, p. 1045) regards Erythroconis Uttoralis Oerstedt as 

 a doubtful synon\Tn of Thiopedia rosea Winogradsky. 



The genus is rejected as invahd by Erwin F. Smith (1905, p. 174). 



The type species is Erythroconis Uttoralis Oersted. 



