Chelidonura pallida from Indonesia

May 11, 2005
From: Roberto Sozzani

Dear Bill,
I have some records of Chelidonura pallida to add to the Forum.
The first photo is from Rinja island, the second from Manado.
As Linda Ianiello has found [message #10807], most of my findings of this species were also in black volcanic sand. I must add that I never considered this species a rare finding in Indonesia: not common as Chelidonura amoena, but still easy to see on black sand.

Locality:  Rinja Island and Manado, Indonesia. Depth: 12-15 metres. Length: 5 cm. March 2003. Black sand and sandy slope. Photographer: Roberto Sozzani

Best regards
Roberto Sozzani

Sozzani, R., 2005 (May 11) Chelidonura pallida from Indonesia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Roberto,
Thanks for the records. One value of the Forum is to give us a chance of building up a better idea of just how common, various species are. Enormous private and public shell collections have enabled us over time to build a quite good understanding of the geographic distribution of many shelled molluscs and to gain an understanding of just how common individual species are. Unshelled molluscs, such as the sea slugs, are quite a different story. Collections of any value are much more difficult to accumulate, because preserved specimens of one species look much like those of another. To be of value, specimens need to be properly fixed and preserved when collected, and accompanied by information on their living shape and colour such as drawings, field notes, paintings and more recently colour photographs.  In many ways, colour photographs are as valuable in sea slug research as shells are in 'snail research'.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (May 11). Comment on Chelidonura pallida from Indonesia by Roberto Sozzani. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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