Sea slug in my tank?

October 1, 2002
From: Daniel R

I am 15 and own a 12 gallon, full blown mini reef. I have had it running for a few months now and just about 20minutes ago we found a small, what appears to be a nudabranch. It is black, and has a white "stripe" down the middle of it which gets larger and smaller as the light changes. it is about the size of a penny. any info is appreciated.
Thanks in advance,
Daniel

4roses@citlink.net

Daniel, 2002 (Oct 1) Sea slug in my tank?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8084

Dear Daniel,
This is an easy one. Go to the Scutus Page to find out about your animal. As well as the Fact Sheet, have a look at other messages below yours on the page as they have further information. Basically your animal is a called which has a flattened white shell on its back which is partially or fully covered by flaps of skin. It seems to be changing size, but the white stripe is the part of the shell you can see. It gets wider and thinner as the black flaps of skin open and close a bit.
Best wishes,
BillRudman

Factsheet

Elephant Slug, Shield Slug, Ducksbill Limpet (Scutus sp.)

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