Turbellarian taxonomic database

Aberrantospermata Convolutidae Diagnosis

Spermatozoa with 9+0 axonemes. Pigmentation, algal symbionts and eye spots often present. Male antrum may have numerous stimulatory organs. Sagittocysts may be present. Includes large and active worms

[From Jondelius U, Wallberg A, Hooge M, Raikova OI (2011): 867]

Notes from synonyms

Diagnosis for Acoela Anaperidae

Genital pore terminal or subterminal. Seminal vesicle absent as a rule; penis not invaginated into seminal vesicle. Male antrum well-developed, always with many sclerotized stimulatory organs.

Diagnosis for Acoela Sagittiferidae

Kostenko AG, Mamkaev YuV 1990 (citation) - Ciliated sacate male antrum or non-ciliated sacate male antrum. Some
members with sagittocysts.

Return to Acoela Sagittiferidae