Doriopsis pecten (Collingwood, 1881)

Doriopsis pecten (also known as Doris pecten) is relatively common in very shallow water, usually 1m or less, under rocks that bear a coating of the dark blue sponge that they eat. The one immediately below has just glued down a white egg mass to the rocks. We have seen specimens on shallow reefs at Puako, Hawaii, and at Kewalo Basin, Maile, Hanauma Bay, and Hauula on Oahu. Some days at Kewalo they were quite common, with more than 10 specimens observed in an hour's sampling.

The specimens below had me confused for years. Finding them together under a rock, I just assumed they were both Doriopsis pecten. Later, after I found what I thought was my first Siriaus nucleola, it still did not register that the larger of these two "Doriopsis" I had photographed was actually Siriaus.

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Created 20 April 2009

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