Moridilla brockii from Maldives

October 22, 1999
From: Erwin Koehler

Here is Moridilla brocki (or is it spelled Moridilla brockii?) from the
Maldives, Ellaidhoo Island, housereef,
date November 21, 1996, size 8 mm, depth 18m, nightdive.

This one did not like the light - as soon as the pilot-light of my flash-gun pointed at it, it disappeared between the sea squirts.

Koehler, E., 1999 (Oct 22) Moridilla brockii from Maldives. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Erwin,
Thanks for the photo. You are right with the spelling, it's brockii not brocki. I'm afraid I used Russell's Index Nudibranchia instead of Bergh's original description. I'll make the necessary corrections.

It's interesting how sensitive some of these active hunting aeolids can be. Perhaps their nervous system is wired for a fast response. They certainly can't be called 'sluggish'.
Bill Rudman.

Rudman, W.B., 1999 (Oct 22). Comment on Moridilla brockii from Maldives by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Moridilla brockii

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