Chelidonura pallida in Malaysia

July 26, 2007
From: Nur Leena Wong

Hi,

I found this Chelidonura pallida in Tioman Island, Malaysia last month (June 2007) in an undisturbed dive site. I was surprised to find it since this is the first time I saw it after more than 80 dives around Malaysia. Just want to share with you.

Locality: Tioman Island, 18m, Malaysia, South China Sea, 2 June 2007, sand. Photographer: Nur Leena Wong.

Thanks.
Leena

halosin78@yahoo.com

Wong, N. L., 2007 (Jul 26) Chelidonura pallida in Malaysia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20254

Dear Leena,
Thanks for the record. This species does seem to be as common as some other species of Chelidonura so new records are very welcome. I am not sure if you realised, but your animal is in fact two animals mating. In the photo alongside I have labelled the head of the posterior animal and the right parapodia of each animal. Aglajids, like Chelidonura pallida, are similar to sea hares in their mating behaviour [see mating chains ], because their penis is on the right side of the head, quite separate from the female part of their genital organs which are on the right side of the body about halfway back in the mantle cavity. [I have ringed the region in your photo]. If you look at the photos and messages on Chelidonura varians you will find quite a few reports on mating and egg laying.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Jul 26). Comment on Chelidonura pallida in Malaysia by Nur Leena Wong. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20254

Factsheet

Chelidonura pallida

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