Plagiostomum girardi bermudensis subsp.n., Pseudominona gen.n., P. dactylifera sp.n., Minona peteraxi sp.n., Proxenetes denhartogi sp.n., P. mackfirae sp.n., haipusa spinibursa sp.n., I. riegeri sp.n., I. ruffinjonesi sp.n., Utelga uncinata sp.n., Typhlopolycystis schockaerti sp.n., Limipolycystis swedmarki sp.n., Bermudorhynchus gen.n., B. sterreri sp.n., Annalisella gen.n., A. bermudensis sp.n. are described as new taxa. Additional notes are given on Cylindrostoma monotrochum (Graff), Trigonostomum setigerum (O. Schmidt), Ceratopera paragracilis Ehlers & Ax, Microvahine corallicola Karling, Mack‐Fira & Dörjes, Polyeystis naegelii Kölliker, Gyratrix hermaphroditus Ehrenberg, Uncinorhynchus hamatus Brunet and on several taxa related to those here described. Minoninae subfam.n. is nominated in the fam. Monocelididae. The taxonomy of the family Koinocystididae is partially revised. Biogeographic comments are given on the marine turbellarian fauna of Bermuda.