Re: Dirona albolineata & D. pellucida interaction

April 8, 2010
From: Jackie Hildering

Concerning message #23435:

Thanks you Bill,

For what it is worth, I believe very strongly that the orange animal is not a colour variant of Dirona albolineata. I believe it to be Dirona pellucida.

Note the white spotting, the white tapered line leading up the cerata and the more bulbous shape of the cerata.

None of these characteristics are in the more orange variant of D. albolineata in message #23212

Very best wishes and thank you,

Jackie

earthlingenterprises@telus.net

Hildering, J., 2010 (Apr 8) Re: Dirona albolineata & D. pellucida interaction. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/23460

Dear Jackie,

Thanks for the fast reply. I was really asking a question about how you identify these two species. Since I have no personal experience with these two species, I am not really in the position to comment on your identifications. I could see the characteristic white lines etc on the white D. albolineata but couldn't see the edge of the oral veil in the orange one so couldn't really check if it was D. albolineata. I thought white spots were characteristic of D. pellucida but then found the animal identified as D. albolineata [message #18951] with white spots so was a bit puzzled.

It is an interesting observation and I am sure next time you see a similar occurrence you will give them a gentle prod to see if they are breaking the species' rules or just passing by very closely

Best wishes,
Bill Rudman

Rudman, W.B., 2010 (Apr 8). Comment on Re: Dirona albolineata & D. pellucida interaction by Jackie Hildering. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/23460

Factsheet

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