Hi,
I have here some in-situ imagery from the Canadian Arctic. Ctenophores and Hydromedusae? I have ideas what species or genus they are but I am not sure. Would be nice to have some more opinions on this. There is no scale bar, but 1 image pixel is 20 micron. I'll put a size estimate next to the links.
Link group 1: Size is about 1.56 mm
https://www.dropbox.com/s/ki2ynr3t935adsj/20130818%20144216%20%20022%20%20000000%200432%200226.bmp?dl=0
https://www.dropbox.com/s/ili4eb0evfuzwas/20130818%20144625%20%20722%20%20000001%200564%200780.bmp?dl=0
https://www.dropbox.com/s/s45iz3658rgz7r3/20130818%20144214%20%20390%20%20000000%200228%200154.bmp?dl=0
Link group 2: I actually have no idea what this is. The diameter is about 2.56 mm for the more disk shaped one and 2.15 mm for the elongated one (top to bottom).
https://www.dropbox.com/s/kktp81ewrpf4qrd/20130818%20144626%20%20289%20%20000000%200336%200262.bmp?dl=0
https://www.dropbox.com/s/k64x7sqquxu1zjp/20130818%20144621%20%20257%20%20000001%200624%200374.bmp?dl=0
https://www.dropbox.com/s/exk0iwwdfiz2sxt/20130818%20144624%20%20556%20%20000001%200276%200552.bmp?dl=0
Link group 3: Size about 10.82 mm top to bottom.
https://www.dropbox.com/s/a7oyxensa7mcb1z/20130816%20065313%20%20078%20%20000001%200620%200392.bmp?dl=0
Link group 4: I am quite lost here. Size about 7 mm for the first link.
https://www.dropbox.com/s/wadkm6fehos9tgz/20130815%20224953%20%20267%20%20000000%200820%200440.bmp?dl=0
~14.780 mm top to bottom
https://www.dropbox.com/s/g8f0lyl67z34rxx/20130815%20105324%20%20415%20%20000000%200092%200084.bmp?dl=0
Size about ~17.6 mm
https://www.dropbox.com/s/2jp962c2v5xmwtf/20130815%20105231%20%20270%20%20000000%200208%200124.bmp?dl=0
Thanks a lot!
I see the dropbox doesn't load the picture sometimes, please just download it then. theres a link to that also in dropbox. Thanks!
Hi, here are some ideas:
1. Could be either Pleurobrachia or a ciddypid larva
2. Both look like from the family Rhopalonematidae, but I'm not sure. maybe the elongated one is Aglantha?
3. Beroidae
4. I would look at the family Mertensiidae, ctenophores have a lot of species that haven't been described
Hope that helps
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