foriculum
(plural foricula))
the specialized scale in female Anableps covering the genital opening but free on one side so as to allow the entrance of the male intromittent organ. The free side may be right or left permitting copulation only with a left- or right-handed male intromittent organ respectivel

Dictionary of ichthyology. 2009.

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  • foricula — plural of foriculum …   Dictionary of ichthyology

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