Appendix. 



A Review of the Forms of Campylodiscus, 



DESCRIBED BY PROF. J. BRUN, OF GENEVA. 



SINCE the MS. of this ,l Analysis " was in the printer's hands, 

 1 have been kindly favoured by Prof. Rrun with the loan of 

 his authentic types. My examination of these beautiful 

 selected slides has allowed me to carefully stud) them, and has 

 led me to modify my \ : specific value of some of 



the forms. In order to complete this "prelude'' to a final 

 monograph, which will contain the figures and descriptions of all 

 known Campylodisci and their varieties, I will now proceed to 

 review Prof. Brim's species and describe them afresh, from the 

 original specimens, in a more complete manner than was done by 

 their able discoverer, who, as is well known, handles the artist's 

 pencil better than he does the descriptive pen. 



I now consider the following forms of Prof. J. Brun as being 

 fairly distinct : — Campylodiscus albifrons^ C. alta?\ C. chrysanthe- 

 mum, C. clivosuSj C. coronilia, C. rivulosus (Temp, et Brun), 

 ( '. vitricavus (Temp, et Brun); while I am of opinion that C. 

 canalisatus is only a variety of ('. vitricavus (Brun), ('. simplex a 

 variety of C. divosus (Brun), C. scalaris (Brun), a var. of 

 C. Ralfsii (W. Sm.), and C. hypodromus (Brun), identical with 

 C. angularis (Greg 



