Turbellarian taxonomic database
Umagillinae Marcusella Diagnosis
Umagillidae with a paired germarium, small lateral testicles in the anterior part of the body, a seminal vesicle and a long ductus ejaculatorius with a fairly short cuticular penis at its posterior end, a muscular, very spacious male atrium and vagina, both provided with thread-like outgrowths (villi) as well as the genital atrium, normal epithelium of the body, a small pharynx.--Parasites in sea-urchins. 1 species. M. atriovillosa n. sp.
[From Westblad E (1953): 285]
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