Discodorididae Bergh 1891

These nudibranchs are adjacent to each other, but they are not in position to mate. Depth 15 m.

Nudibranchs are hermaphroditic. These two, the larger about 60 mm long, are mating, right shoulder to right shoulder, exchanging sperm. Later they each will lay an egg ribbon. Depth 12 m.

Discodoris sandiegensis

ringed dorid egg mass

on glass

ringed dorid

mating

sea lemon

sea lemon

Discodoris sandiegensis

red sponge nudibranch

These dorids are mutually copulating. Depth 16 m.