Doerjes 1968, p. 104 (citation). Acoela with epithelial nervous system or with longitudinal nerves lying to the inside of the body-wall musculature. Mouth opening ventral near the front end or terminal. Pharynx very long and tubiform, with simple or powerful musculature, or bell-shaped. Testis diffuse. Vesicula seminalis can be lacking. Vesicula granulorum with penis, which consists of sclerotized needles. Male genital pore immediately behind the mouth opening, widening into an antrum masculinum. Ovaries ventral, either paired or follicular. Female accessory organs lacking.[From Dorjes J (1968)]
Return to Prosopharyngida Hofsteniidae