Re: Spurilla neapolitana from Gulf of Mexico [7]

September 10, 2005
From: Brian Plankis

Bill,
I have been observing the adults and they now eat three separate species of anemone. The tulips pictured earlier and two different Aiptasia species. In all cases the adults will move until they can begin feeding on the foot of the anemone, always finishing with the oral disk. I have attached a picture of them eating the latest aiptasia species tested. They never seem to detach from the anemone once feeding starts. A large tulip anemone takes 2-4 hours to eat, both aiptasia species take 45mins to 1.5 hours to eat.

I also have begun filtering the water used for hatching the eggs and when I was transfering the latest batch of eggs over, I accidentially induced a hatching. I've attached a picture at 4x magnification. I'm slightly optomistic as the newly hatched babies were visible to the naked eye and I have smaller aiptasia for them to feed on now. At least I know the eggs are viable now as they were moving around in the water.

I'm still working on getting a picture of the head and neck to see if they are storing the microscopic plants, but no good pictures yet.

Brian

garagebrian@yahoo.com

Plankis, B.J., 2005 (Sep 10) Re: Spurilla neapolitana from Gulf of Mexico [7]. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14725

Thanks Brian,
I wish you the best of luck with the veliger larvae
Bill Rudman

Rudman, W.B., 2005 (Sep 10). Comment on Re: Spurilla neapolitana from Gulf of Mexico [7] by Brian Plankis. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14725

Factsheet

Spurilla neapolitana

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