Cadlina? Aldisa? or . Conualevia alba?

August 1, 2007
From: J. Hildering & G. Miller

I really need help with this one. It has spots on the outer edge like Cadlina modesta but these are white as is the rim. I don't think Aldisa albomarginata has the white spots and these do not have the typical green tinge of this species. Of course, it is with great trepidation that I consider Conualevia alba as its reported range is only as far North as Carmel, California; these individuals were bigger and I did not find them under rocks. I could not discern if the rhinophores are in fact smooth. In short, to ID this one I need help and fear I might be missing the obvious.

Locality: Mist Island , 60', British Columbia, Canada, Pacific Ocean, 08 July 2007 , Wall . Length: 4 cm . Photographer: Jackie Hildering.

Jackie Hildering & Glen Miller

earthlingenterprises@telus.net

Hildering, J. & Miller, G., 2007 (Aug 1) Cadlina? Aldisa? or . Conualevia alba?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20176

Hi Jackie and Glen,

Well as Bill and I have said so many times before, you cannot always identify a nudibranch from a photo alone. This one is certainly the case. I think we can eliminate Cadlina due to the shape of the dorsal tubercles, and what almost looks like spicules within the mantle. Conualevia is out as the rhinophores are not long and simple, but appear short and perfoliate to me. That leaves one of the species of Aldisa. I don't recognize it as either of the white species. Maybe we can have Jeff Goddard or Sandra Millen pipe in on this one.

Thanks for sharing,
Dave Behrens

Behrens, D.W., 2007 (Aug 1). Comment on Cadlina? Aldisa? or . Conualevia alba? by J. Hildering & G. Miller. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20176

Factsheet

Cadlina luteomarginata

Related messages

  1. Re: Acanthodoris hudsoni or Cadlina?
    From: Marli Wakeling, February 22, 2008
  2. Re: Acanthodoris hudsoni or Cadlina?
    From: Brian K. Penney, February 22, 2008
  3. Re: Acanthodoris hudsoni or Cadlina?
    From: Leslie Harris, February 22, 2008
  4. Acanthodoris hudsoni or Cadlina?
    From: Paul Sim, February 19, 2008
  5. Re: Cadlina? Aldisa? or . Conualevia alba?
    From: Brian K. Penney, August 4, 2007
  6. Cadlina luteomarginata? being eaten by a seastar
    From: Jackie Hildering and Glen Miller, July 10, 2007
  7. Acanthodoris hudsoni or Cadlina luteomarginata?
    From: Peter McGuinness, December 31, 2004
  8. Cadlina luteomarginata from California
    From: Bruce Wight, August 3, 2004
  9. The identity of Cadlina luteomarginata
    From: Rebecca Johnson, August 30, 2001
  10. Re: Cadlina luteomarginata
    From: Brian K. Penney, August 25, 2001
  11. Cadlina luteomarginata from Oregon
    From: Jeff Goddard, August 24, 2001
  12. Dorid feeding in captivity
    From: Brian K. Penney, August 24, 2001

Show factsheet and all related messages