''Castrella'' is a genus of
flatworms
Platyhelminthes (from the Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") is a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates commonly called ...
belonging to the family
Dalyelliidae
Dalyelliidae is a family of flatworms belonging to the order Rhabdocoela
Rhabdocoela is an order of flatworms in the class Rhabditophora with about 1700 species described worldwide. The order was first described in 1831 by Christian Gottfried ...
.
Species:
* ''
Castrella alba''
Luther, 1955
* ''
Castrella cylindrica''
Riedel, 1932
References
Platyhelminthes
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