Gills of Aplysia brasiliana?

March 5, 2009
From: Linda Ianniello


Dr. Bill,
I know there are a lot of images of Aplysia brasiliana on the Forum, but I am wondering whether this image is showing the gills? There are images of them swimming, but none seem to show the gills like this. So I wonder if this one is damaged?

Locality: Lake Worth Lagoon, 10 feet, Florida, USA, Atlantic Ocean, 28 February 2009, Tidal. Length: Approx. 2 inches. Photographer: Linda Ianniello.

Thanks and best regards,
Linda I.

lindai1@bellsouth.net

Ianniello, L.M., 2009 (Mar 5) Gills of Aplysia brasiliana?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22311

Thanks Linda,

I thought the best way to answer this was to add some labels to your photos and refer you to the Sea Hare mantle cavity page. There is clearly some damage but I can't see just what has happened. The animal should not ne holding its shell and mantle up so high so all I can presume is that something has taken a bite in their somewhere. The hole I have labelled the foramen is in most aplysiids a tiny opening into the internal shell cavity. For it to be so open as this suggest the animal is quite sick. Only a few species, such as Aplysia parvula have a wide mantle foramen such as this.

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (Mar 5). Comment on Gills of Aplysia brasiliana? by Linda Ianniello. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22311

Factsheet

Aplysia brasiliana

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