Alma Grube, 1855 (additional source)
Alma emini (Michaelsen, 1892) (additional source)
Alma eubranchiata Michaelsen, 1910 (additional source)
Alma kamerunensis Michaelsen, 1915 (original description)
Alma multisetosa Michaelsen, 1915 (original description)
Alma pooliana Michaelsen, 1913 (additional source)
Alma stuhlmanni (Michaelsen, 1892) (additional source)
Alma togoensis Michaelsen, 1915 (original description)
Alma ubangiana Michaelsen, 1915 (original description)
Beddardiella bomone Michaelsen, 1915 (original description)
Buttneriodrilus Michaelsen, 1897 (additional source)
Buttneriodrilus bule Michaelsen, 1915 (original description)
Buttneriodrilus lundaensis (Michaelsen, 1891) (new combination reference)
Buttneriodrilus schultzei Michaelsen, 1915 (original description)
Buttneriodrilus siphonochaetus (Michaelsen, 1891) (new combination reference)
Dichogaster adjelana Michaelsen, 1915 (original description)
Dichogaster anguana Michaelsen, 1915 (original description)
Dichogaster balantina Michaelsen, 1915 (original description)
Dichogaster biggei Michaelsen, 1915 (original description)
Dichogaster bolaui decanephra Michaelsen, 1915 (original description)
Dichogaster dorsalis Michaelsen, 1915 (original description)
Dichogaster gabunensis Michaelsen, 1915 (original description)
Dichogaster katangae Michaelsen, 1915 (original description)
Dichogaster kunguluensis Michaelsen, 1915 (original description)
Dichogaster loboziana Michaelsen, 1915 (original description)
Dichogaster mansfeldi Michaelsen, 1915 (original description)
Dichogaster savanicola Michaelsen, 1915 (original description)
Dichogaster terricola Michaelsen, 1915 (original description)
Eminoscolex japomanus Michaelsen, 1915 (original description)
Eminoscolex sibutanus Michaelsen, 1915 (original description)
Eupolytoreutus glanningi Michaelsen, 1915 (original description)
Euscolex victoriensis Michaelsen, 1902 (additional source)
Eutoreutus Michaelsen, 1915 (original description)
Eutoreutus abinsianus Michaelsen, 1915 (original description)
Eutoreutus dumaensis Michaelsen, 1915 (original description)
Gordiodrilus habessinus Michaelsen, 1913 (additional source)
Gordiodrilus schubotzi Michaelsen, 1915 (original description)
Iridodrilus preussi Michaelsen, 1903 (additional source)
Libyodrilus kamerunensis Michaelsen, 1915 (original description)
Malodrilus Michaelsen, 1903 (additional source)
Monogaster Michaelsen, 1915 (original description)
Monogaster bidjumensis Michaelsen, 1915 (original description)
Nematogenia panamaensis (Eisen, 1900) (additional source)
Parascolex purpureus (Michaelsen, 1891) (basis of record)
Parascolex rosae (Michaelsen, 1891) (additional source)
Pygmaeodrilus moeroensis Michaelsen, 1915 (original description)
Rosadrilus Cognetti, 1909 (additional source)
Rosadrilus camerunensis Cognetti, 1909 (additional source)
Schubotziella Michaelsen, 1915 (original description)
Schubotziella anguana Michaelsen, 1915 (original description)
Schubotziella dunguensis Michaelsen, 1915 (original description)