Rhynchomesostoma rostratum is a species of rhabdocoel flatworms in the family Typhloplanidae.
Description The animal is 1.5 to 3.5 mm long and transparent. The anterior end is retractable.
Taxonomy It was described by Otto Friedrich Müller in 1774 as Fasciola rostrata.
Distribution and habitat The species has been recorded in Europe, India, Kenya, Siberia, and the US.
Ecology and behavior It preys on oligochaetes, cladocerans, copepods, other microturbellarians, and mosquito larvae and other aquatic insects. It is preyed upon by the flatworm Phaenocora unipunctata.
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