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Family Catenulidae Graff, 1905


Ventro-lateral ciliated furrow separates prostomium from rest of body. Brain ovoid, not extensively lobed, at base of prostomium or about level of mouth. Gut without excretophores. Male pore dorsal, behind level of mouth.

Type genus

Catenula Duges, 1832


Africatenula Young, 1976
Catenula Duges, 1832
Dasyhormus Marcus, 1945
Suomina Marcus, 1945


The most comprehensive account of these worms is to be found in Marcus (1945b); Nuttycombe (1956) reported on the Catenula of the eastern U.S.A.

Family Catenulidae