Chiroteuthis

GPO87

Sepia elegans
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Dancing between Vancouver and Auckland
The genus Chiroteuthis vary greatly in shape and size. One unifying feature they all appear to have is noticably long and thick 4th arms. They are also known for the elaborate photophore patterns on their body (which differ depending on species.)


Chiroteuthis calyx

More info here
 

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@Tentagal, I started a Members' Publications thread in the Octopus' Den that tries to keep a running list of members' published works. If you will start an entry with your TONMO name and your publication name, I will add you to my Google Scholar search and add publications as I see them there or happen upon them elsewhere. Members can modify their own threads for a short time but supporters can edit indefinitely so if you have items to add after your initial post, be sure I see them (using @DWhatley in a referencing post) -- even if you become a supporter :biggrin2:. For the initial post you can post as little as the two names or as much as you would like. The format is loose but I will modify it a bit to fit the general look and feel so don't worry much about formatting. The publications do not have to be in journals. YouTube videos, magazines, or any other public paper are encouraged to be posted, preferably with links.
 
schmidt ocean saw a beautiful chiroteuthis on the way down this morning, appears to most resemble c. calyx although i can't tell if the ocular photophores match up from the angles we got

 
consensus on this deceased specimen seems to be chiroteuthis of unknown species:


chris mah sent to mike 4 years ago when it was originally posted and mike thought lepidoteuthis, however that doesn't account for the ocular photophores. after a bunch of back and forth, asperoteuthis acanthoderma and grimalditeuthis were eliminated so we're left with chiroteuthis.
 
NOAA Ocean Explorer's website lists this as chiroteuthis veranyi, presumably ID'd by mike vecchione (he's listed as science personnel on the dive summary)


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oh i've got more

schmidt ocean observed two individuals of presumably the same species at the start of this dive in 2020 off australia. i pulled a bunch of full-resolution framegrabs that were uploaded to Squidle and are no longer available (data is still there, squidle just needs to update links to point to the new location) and i think the overall conclusion from this thread between myself and fernando was that it's probably c. piceti? due the location, visceral photophores, club shape, and ocular photophores.


start of thread w/fernando weighing in on chiroteuthis, there are a couple of subthreads:
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