The name Spirostomum is a slight homonymy case. This name is used according to the rules of several different nomenclatural codes.

Spirostomum

Botany

Taxonomy

Ciliophora 2

Specimens registered in collections

Collection Number of specimens (or sets)
Unicellular eukaryotes (CEU) 2

Spirostomum

Zoology

Taxonomy

Ciliophora 2

Specimens registered in collections

Collection Number of specimens (or sets)
Protists (IR) 2