692 



Asthmatos Salisbury, 1875. Only original, hence, type species, A. ci- 



liaris = Homo sapiens. 

 Bacterioidomonas Künstler, 1884. Type species, B. sporifera. 

 Bactroidomonas Künstler, 1884. Contracted form oï Bacterioido- 

 monas Künstler, hence takes same species as type. 

 Bodo Ehrenberg, 1832. Type in doubt. Perhaps Bodo saltans. 



The designation of the type species oî Bodo is attended Avith some 

 difficulty. Ehrenberg (1832, p. 38) gives 5of/o as a new genus, without 

 a distinct diagnosis, but under the headings ^^ Mo7iadina^^ "b) caudata^\ 

 as follows: ^^Bodo^ nov. gen., Monas punctum Gleichen, 4 species". 

 He further mentions (p. 54) Bodo as one of the new genera, »als 

 Frucht dieser Reise«, and states that the same or congeneric species 

 were found in Berlin; then (p. 62) he gives 



'■''Bodo didymus^ n. g. Catharinenburg . . 1/800 — 5/600"' 



viridis^ al. sp. Smeinogorsk 1/500'" 



vorticellaris^ al. sp. Catharinenburg. . . . 1/100'";" 

 further (p. 67) ^^ Bodo viridis, nov. gen.", and (p. 69) ^'Bodo didymus, 

 n. g., Bodo vorticellaris al. sp.". 



In a second paper Ehrenberg (1832, p. 65) defines Bodo as fol- 

 lows: »Körper rund oder länglich, wie Monaden, aber geschwänzt; 

 ohne Augen«. Five species are mentioned and described, namely, B. 

 vorticellaris (in Siberia), B. didymus (in Siberia), B. saltans (in Berlin), 

 B. viridis (in Siberia) and B. socialis (in Berlin and in Detershagen in 

 Mecklenburg). 



Later, Ehrenberg (1838) states that the genus was proposed 

 in 1830 [not published until 1832] for four species, and that in 1831 

 [not published until 1832] a fifth species B. socialis was added, while 

 in his bibliographic references he mentions only three species [B. 

 vorticellaris, B. didymus and B. viridis) for 1830. It would appear 

 therefore that B. saltans was the fourth species he had in mind in 

 1830. Gleichen's Motias punctum is not accessible to me, but as 

 Ehren berg refers to this form in 1832, it is possible that this is what 

 he named Bodo saltans in his second paper. In 1838, he adds the 

 species B. grandis, B. intestinalis and B. ranarum. 



Die s in g (1850, p. 44) proposed the subgenus Euhodo to contain 

 Ehrenberg's species Bodo vorticellaris, B. didymus, B. saltans and 

 B. viridis and referred B. intestinalis and B. ranarum to the subgenus 

 Bodo [Cercomonas] . Stein (1878, pi. 2) includes in Bodo, B. saltans 

 Ehrenberg and several other organisms of later date , but he does not 

 designate a type. Kent (1880) places Bodo saltans in the genus Diplo- 

 mastix and takes Bodo intestinalis as type of the genus Bodo, which 



