Genital papilla

The genital papilla is an anatomical feature of the external genitalia of some animals.

In mammals

In mammals, the genital papilla is a part of the vulva not present in humans, which appears as a small, fleshy flab of tissue. The papilla covers the opening of the vagina.^[1]

In fish

The genital papilla (urogenital/genital pore) is a small, fleshy tube behind the anus present in most teleost fish, from which the sperm or eggs are released;^[2] the sex of a fish often can be determined by the shape of its papilla.

References

^ Laboratory Manual for General Biology 5th Edition
^ Barrie G M Jamieson (12 September 2019). Reproductive Biology and Phylogeny of Fishes, Vol 8B: Part B: Sperm Competition Hormones. CRC Press. ISBN 978-1-4398-4358-1.

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[1] Laboratory Manual for General Biology 5th Edition

[Jamieson2019-2] Barrie G M Jamieson (12 September 2019). Reproductive Biology and Phylogeny of Fishes, Vol 8B: Part B: Sperm Competition Hormones. CRC Press. ISBN 978-1-4398-4358-1.

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