Aequorea vitrina

David Fenwick Snr Can someone tell me the difference between Aequorea forskalea and Aequorea vitrina please. There were a few possible Aequorea washed up today at Sennen Cove, have never seen this pink coloration in them before, just white and glassy. Thanks.

Anne Bay-Nouailhat Hi David! Here are some identification distinctions between Aequorea forskalea and A. vitrina according to the synopses of British fauna about Thecate hydroid by P. Cornelius. "A. forskalea : up to ca 120 marginal tentacles, usually fewer than the radial canals but ranging from half to twice as many; radial canals 60-80; max diameter ca 175mm" and for A. vitrina :"60-100 marginal tentacles, three or more times the number of radial canals; radial canals 60-100; max diameter ca 100-170mm".

Anne Bay-Nouailhat You can report your sightings there : http://www.jellyfish.ie/ or/and there http://www.mer-littoral.org/formulaire-meduses.php

David Fenwick Snr Thank you for explaining that Anne, will endeavor to record them if I can positively identify them. Wish I'd have brought them home now, mid you they weren't in brilliant condition.

David Fenwick Snr Also found this - http://www.ices.dk/products/fiche/Plankton/SHEET128.PDF

Penny Martin How does one tell aequorea vitrina and aequorea forskalea apart please ??

Matt Doggett Hi All Shameful plugging of my own photos but for some more offshore / northern species plus Aurelia like you've probably never seen them before you can follow the link below to see a selection of images from North Rona, Sula Sgeir and Loch Duich over the last few weeks. Thanks Matt Doggett http://www.earthinfocus.com/blog/detail.php?id=8

Wendy Northway some lovely colours there Matt!

Matt Doggett Thanks Wendy Northway. If anyone has any ideas on the ID of the first jellyfish shot it wold be most appreciated. The tentacles were not as fine as those of Aequorea vitrina and were more like the thickness of spaghetti. I haven't had much luck today but maybe I have looked in the wrong places.

David Kipling Fab shot of the salps too ;)

Darryl Mayer Erm, Cyanea lamarkia is the Blue Lion's Mane. That doesn't look like a blue Lion's Mane in your pic.

Darryl Mayer Polly's pics will answer a few questions that were asked earlier about the beasties seen on some Comb Jellies

Matt Doggett Good point Darryl Mayer - of course it is capillata! I was rushing ;o)