Tritonia bollandi color variation

August 19, 2003
From: Bob Bolland

Hi Bill,
Re your asking about color variation of Tritonia bollandi in a recent Forum post:

I've collected a total of eight individuals, ranging in TL from 17mm to 88mm; collection depth for all 8 was between 185ft (56m) to 235ft (72m). All eight animals, with the exception of the 18mm animal, have a thin white margin along the notal margin . . . perhaps the pigment hasn't yet been lain down on the smaller animal(?). The majority of the specimens are very close in color to the Nishina Masayoshi animals depicted on the Forum. Two of the Okinawa animals are olive green in color while the remainder are very light colored.

I'm enclosing a photo of the 18mm animal.
Data: RFB #3600-A
TL: 18mm
210ft (64m)
Seragaki, Okinawa
22 Jun '97


Bolland, R.F., 2003 (Aug 19) Tritonia bollandi color variation. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Thanks Bob,
Bill Rudman


Tritonia bollandi

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