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Family Hofsteniidae Bock, 1923

Description

Mouth anterior (terminal or subterminal), pharynx long, tubular with simple, bell-like or strong musculature, gastrodermis with or without lumen. Nervous system with cords lying in body wall musculature, statocyst with 1 or more statoliths. Testis diffuse, seminal vesicle present or absent, with prostate, penis armed with stylet, male gonopore immediately behind mouth; ovaries paired or follicular, ventral, extending to posterior, female accessory organs absent.

Type genus

Hofstenia Bock, 1923

Genera

Hofstenia Bock, 1923
Hofsteniola Papi, 1957
Marcusiola Steinböck, 1966

Remarks

Steinböck (1966) gave a comprehensive account of the worms of this group.

Family Hofsteniidae