Turbellarian taxonomic database
Convolutidae Heterochaerus Diagnosis
Convolutidae with two genital openings, female opening in front of male opening; male genital organ with muscular seminal vesicle, parenchymal tissue, and glandular penis with caudal penis fold. Female genital organ with vagina, cellular seminal bursa(e), and many bursal nozzles. No frontal organ present; oblong in shape with caudal lappets; coloration due to zooxanthellae and concrements.
[From Achatz JG, Hooge MD, Wallberg A, Jondelius U, Tyler S (2010): 29]
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