Erséus, C. (1983). Two new species of Aktedrilus (Oligochaeta, Tubificidae) from the west Atlantic. Bulletin of Museum of Natural History. 5: 1051-1057.
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Erséus, C.
1983
Two new species of Aktedrilus (Oligochaeta, Tubificidae) from the west Atlantic
Aktedrilus dentatus sp. nov. and A. martiniquensis sp. nov. are described from Brazil and Martinique/Guadeloupe, respectively. Both species are littoral marine and interstitial. A. dentatus is provided with tooth-shaped, highly cuticularized penes, and it is the first species of Aktedrilus with the spermatheca located in segment IX. A. martiniquensis is closely related to the North Pacific A. longitubularis Finogenova and Shurova, 1980, but differs from that species in having single-pointed (not bifid) posterior setae, pharyngeal glands extending into segment VII or VIII (into VI only in A. longitubularis), and spermatozoa partly embedded in the spermathecal wall. A slightly modified definition of Aktedrilus is provided.
