Facelina coronata

Antoni López-Arenas Cama Facelina bostoniensis? or Facelina coronata with large ceratas? http://www.flickr.com/photos/alopezarenas/8758406807/in/photostream/

João Pedro Silva I think F. auriculata. Btw, F. coronata is a junior synonym: http://www.marinespecies.org/aphia.php?p=taxdetails&id=139909

Antoni López-Arenas Cama sorry, so the question is: Facelina auriculata or bostoniensis? :-P

João Pedro Silva It seems too slender for F. bostoniensis.

Brendan Oonk F. auriculata usualy has got white lines/dots on the cerata under the white tips. This one hasn't got that......

João Pedro Silva Yes it does have some, Brendan Oonk. And I've got some shots of F. auriculata where the white dots are almost unnoticeable. http://www.flickr.com/photos/jpsilva1971/6797184150/

Brendan Oonk I've got pics as well where there are (allmost) no white lines there. And i know that colouration isn't allways a reliable characteristic..... In the Netherlands we see them more like the ones Erling posted. Not trying to disagree with you. just tried to point out that (to me) this is not a typical F. auriculata.

João Pedro Silva It's not a matter of agreeing or not, Brendan Oonk :) It's a matter of finding out which species it is. It's not a typical F. auriculata to me either but with the variations I've seen within this species I think it might be just another one. Antoni López-Arenas Cama has another photo of a local F. bostoniensis where some of the distinctive features, like the broader foot, are clearer: http://www.flickr.com/photos/alopezarenas/4739022167/

Peter H van Bragt Hi João Pedro Silva, I would agree on F. bostoniensis. Juvenile F. auriculata's are even more slender. Also the cerata seem to be more clustered in F. auriculata and less (as in this pic) in F. bost.

João Pedro Silva Mind you I've yet to find F. bostoniensis here in Portugal. All the variations I've seen were F. auriculata. The cluster density looks like a good distinctive character but it also varies a lot in F. auriculata and this particular photo is not very clear. The species page on Conchsoc (http://www.conchsoc.org/spAccount/facelina-bostoniensis) also mentions the shape of the propodial tentacles (unfortunately not clear in Antoni's photos) and the differences on the lamellae of the rhinophores: all lamellae form complete rings in F. bostoniensis but some are interrupted on the anterior side in F. auriculata (which makes those which form complete rings more conspicuous). Hence I'm now convinced it's F. bostoniensis. Btw, has any of these been included in recent molecular studies?

Lucas CerCur I would acknowledge very much if some of you can collect and send me 2-3 specimens of Facelina auricularia from Nowway, Sweden, Denmark or UK. Is this posible?

David Kipling Is that the same as F. auriculata?

Lucas CerCur Sorry, it has been a mispeling. Yes, it is Facelina auriculata. Material from the Netherlands is wellcome also.

Jussi Evertsen Are you thinking about Facelina coronata? - Facelina auriculata has been used for both coronata and bostoniensis in Norwegian waters previously

Lucas CerCur I don't know sincerely.

Lucas CerCur It should be study carefully publications, potos, pictures, and then to sequence those morphotypes that you can identify.

Lucas CerCur Iim interested in specimens of the species commonly known as F. auriculata, not F. bostoniensis.

Matt Doggett How do you want them fixed?

Lucas CerCur Ethanol 98-95%. Thanks.

Lucas CerCur Photos would be also wellcome.