45 



distinct from B. ruber miquel, are much more closely related 

 than the members of the P r o d i g i o s u s group , if they are not 

 all identical. This includes forms isolated and described by 

 Dyar, B. zeta, B. delta, B. ferruginous, B. salmoneus, 

 B. rhodocrous Overbeck, B. finitimus ruber, B. haema- 

 t o i d e s Wright etc. Some of these are recorded as liquefying 

 gelatin slowly or very slowly. The pigment ranged from salmon 

 pink and orange to red. Milk is either unchanged or alkaline. 



I desire to express my grateful thanks to -Professor Edwin 

 O.Jordan, of the University of Chicago, under whose advice and 

 direction the work embodied in "this paper was carried out 

 (See Table IX p. 4647, Table X p. 4851.) 



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