Turbellarian taxonomic database

Acoela Sagittiferidae Diagnosis

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

[From Kostenko AG, Mamkaev YuV (1990)]

Diagnosis for the valid (accepted) taxonomic name

Diagnosis for Aberrantospermata Convolutidae

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

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