Turbellarian taxonomic database

Geoplanini Notogynaphallia Diagnosis

Geoplaninae with small-to-medium- sized body, 16–70 mm in length; slender body, margins nearly parallel; dorsum and ventral side slightly convex; eyes monolobulated, marginally arranged along the body; pharynx cylindrical; prostatic vesicle intrabulbar, dilated, broadly communicated with the richly folded male atrium; penis papilla eversible; ascending portion of ovovitelline ducts lateral to posterior region of the female atrium and joining each other behind it; genital canal dorso-anteriorly flexed, arising from the posterior region of the female
atrium; female atrium irregular and narrow.

[From Carbayo F, Alvarez-Presas M, Olivares CT, Marques FPL, Froehlich EM, Riutort M (2013): 15]

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