Question about Bullina lineata

January 1, 2003
From: Stuart Woodhouse

Dear Bill
i was looking through some web pages from southern cross university on their nudibranchs of N.E.N.S.W. and noticed a comment on Bullina lineata stating that it is unable to retract fully into its shell. I was of the understanding that Bullina lineata retained a thin operculum and did have the ability to retract? Am I wrong ??
Thanks for a great site
Best regards
Stuart

stuie90@hotmail.com

Woodhouse, S., 2003 (Jan 1) Question about Bullina lineata. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8727

Dear Stuart,
As I say on the Bullina lineata Fact Sheet, it retains a small operculum, and can retract into its shell. Have a look at the Detorsion Page where I discuss how existing primitive shelled slugs illustrate one way the shell has been lost in the opisthobranchs in the process of becoming a 'slug'
Best wishes,
Bill Rudman

Rudman, W.B., 2003 (Jan 1). Comment on Question about Bullina lineata by Stuart Woodhouse. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8727

Factsheet

Bullina lineata

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