Re: Hypselodoris from Bonaire (Caribbean)

May 27, 2003
From: Ron Velarde

Dear Bill/ Brian,
In looking at all the photos and comparing, it looks to me that there could be at least three species here. Hypselodoris bayeri, as shown by the Marcus photo; Hypselodoris sp 5, as shown, except I think Brian's photo is a THIRD species, as the rhinophores are purple with darker tips as opposed to white with blue tips. Also, it looks to me like Dave Behren's Hypselodoris bayeri from Belize is Hypselodoris sp 5. As always, identifications from photos without specimens is opinion at best but this is what I see. Is there any size data to go along with the photos? (ie. could color differences be size related?)
Ron Velarde

rvelarde@sandiego.gov

Velarde, R., 2003 (May 27) Re: Hypselodoris from Bonaire (Caribbean). [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10005

Thanks Ron,
We still have a lot more to learn about this group. Almost every photo I get seems a bit different. I decided to treat the light purple rhinophore with a dark purple tip in Brian's photo to be a 'dark form' of those with a white rhinophore with a purple tip - but I could be wrong. We have two problems. Firstly we can't be sure of the colour pattern of the type specimens Marcus' species. Secondly we have no idea how many species we are dealing with and just how variable they are in colour. I'm afraid I put any data I get with photos so I'm afraid at thois stage we can't say whether colour variation is size related.
best wishes,
Bill Rudman

Rudman, W.B., 2003 (May 27). Comment on Re: Hypselodoris from Bonaire (Caribbean) by Ron Velarde. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10005

Factsheet

Hypselodoris bayeri

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