19 January, 2013 — Spermcasting » 0 – Hermissenda crassicornis Barkeley Sound – 4vii92 BC 01

Hermissenda crassicornis, the so-called "opalescent nudibranch".  Individuals of this hermaphroditic species reciprocally exchange sperm in some of the fastest copulations known.

Hermissenda crassicornis, the so-called “opalescent nudibranch”. Individuals of this hermaphroditic species reciprocally exchange sperm in some of the fastest copulations known.


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