GENERAL SYSTEMATIC BACTERIOLOGY 187 



Coccdbacteria septica (q.v.) in which the cells are spherical and em- 

 bedded in relatively dense zoogloeal masses, the masses being well 

 limited, usually oval and distinct. To one particular form the binomial 

 Ascococcos parvus (p. 98) was given. This is insufficiently described and 

 cannot now be recognized. 



The generic designation Ascococcos Billroth should be regarded as 

 invalid for the following reasons: 



1. The name Ascococcos uses the Greek termination os instead of 

 the Latin us. Article 7 of the Botanical Code specifically states : 



Scientific names are in Latin for all groups. When taken from another 

 language, a Latin termination is given them, except in cases sanctioned by 

 custom. 



2. The name was never proposed by Billroth as a valid generic 

 designation but as a growth form only. 



3. The only species (A. parvus) assigned to the genus was inadequately 

 described. 



This name was changed to Ascococcus by Cohn (1875, p. 147) who 

 writes "Billroth schreibt Ascococcos, wie Micrococcos, etc; der Gebrauch 

 sanctionirt jedoch nur die lateinischen Endungen selbst bei Namen 

 griechischen Stammes (Lois de la nomenclature botanique Article 

 66)." The generic name therefore, in spite of Cohn's statement "Asco- 

 coccus Billroth char, emend." should read Ascococcus Cohn" (q.v.), 



Ascococcus. The form genus Ascococcos (q.v.) was created by 

 Billroth (1874, p. 13) for a growth form of his Coccohacteria septica 

 in which the spherical cells are embedded in gelatin or slime. This 

 is not tenable as a generic designation. Cohn (1875, p. 154) published 

 the genus name "Ascococcus Billroth char, emend." This should be 

 written Ascococcus Cohn. 



The generic description given by Cohn is : 



Cellulae achromaticae globosae densissime consociatae in familias tubercu- 

 losas globosas vel ovales irregulariter lobatas, lobis in lobules minores sectis 

 capsula globosa vel ovali gelatinoso-cartilaginea crassissima circumdatas, in 

 membranam moUem facili secendentem floccosam aggregatas. 



One species was described, Ascococcus Billrothii, from a zoogloea 

 mass developing spontaneously in a culture medium of ammonium 

 tartrate. The specific diagnosis is 



Familiae tuberculosae 20-160/* capsula ad 15/1 crassae. In solutione ammoni 

 tartarici acidi a6ro lavata vel butyrico praeditam formanten observavi Mart 



