Bermudrilus peniatus n. g., n. sp. (Oligochaeta, Tubificidae) and Two New Species of Adelodrilus from the Northwest Atlantic

1 July 1979

journal article
research article
Published by JSTOR in Transactions of the American Microscopical Society

Vol. 98 (3) , 418-427
https://doi.org/10.2307/3225727

Abstract

Adelodrilus magnithecatus sp. nov. and A. multispinosus sp. nov. are described from sublittoral sands of the northwest Atlantic. Both species are distinguished from other Adelodrilus by details of their penial setae. A. magnithecatus is the only known species of the genus [A. anisusetosus Cook, A. kiselevi (Finogenova) and A. pusillus Erseus] having large spermathecae with narrow central lumen and thick walls, the latter with numerous cavities containing sperm after copulation. A. cooki Erseus, 1978 is reported from Iceland. The generic characters of Adelodrilus Cook, 1969, and the relation of the genus to Phallodrilus Pierantoni, 1902 are briefly discussed. A new monotypic genus is established for BERMUDRILUS peniatus from Bermuda. This species, like the genus Adelodrilus, has sperm-storing vasa deferentia, but it possesses true, cuticularized penes and lacks posterior prostates.

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