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Several LARGE octopus off of La Jolla, CA

Jabba954

GPO
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Joined
Jul 21, 2009
Messages
104
Hey all - was diving for the first time off of La Jolla shores this past weekend (usually dive up north in Monterey/Carmel area), and along the canyon, at about 75', we encountered 3 very large octopus living within 5-10' of each other. The only one that we could coax out of its hole had a mantle of around 8-10" and arms of ~3'. Any idea of the species based on the description? Seems much too large for bimac.

Coloration was mottled brown, and no eye spot.
 

Jabba954

GPO
Registered
Joined
Jul 21, 2009
Messages
104
Oh, it was also fast/strong enough to unscrew the cover of my buddy's dive light when we first looked into the hole to see what was there.
 

DWhatley

Kraken
Staff member
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Joined
Sep 4, 2006
Messages
20,861
I remembered that one of the bimacs (bimaculatus) gets a lot larger then the one we commonly keep so I looked it up in Cephalopods A Wold Guide (Mark Norman) and it does say that they can have mantles up to 20 cm (~8") and arms up to 80 cm (~31.5").
 

Jabba954

GPO
Registered
Joined
Jul 21, 2009
Messages
104
Sure looks like him - and digging up google images of the bimaculatus turns up a ton of pics from La Jolla Shores.
 

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