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Related FAQs:  CephalopodsCephalopods 2Cephalopod Identification, Cephalopod Behavior, Cephalopod Compatibility, Cephalopod Selection, Cephalopod Feeding, Cephalopod Systems, Cephalopod Disease, Cephalopod Reproduction,

Related Articles: Don't Buy an Octopus Before Reading This by James Fatherree, MollusksThe Ballet of the Wonderpus by Richard Ross,

/The Conscientious Marine Aquarist

Octopus, Cuttlefish, Squid, the Class Cephalopoda, Part 1: Octopodes

To: Part 2, Squids, Cuttlefishes

Bob Fenner

Octopus marginatus


Cephalopods
: "Head feet"... the brainy Mollusks. Masters of disguise, ambush, speed (well, for some).

Genus Haplalochlaena: (venomous) Blue Ring Octopi
Hapalochlaena lunulata, the Greater Blue Ring Octopus. Indo-Pacific. To 7 cm. (2.75"). Bali 2014

Genus Octopus

Octopus briareus, Caribbean Reef Octopus. Often pale to bluish overcast. Doesn't have dark edges around suckers like the other common TWA octopode, O. vulgaris. TiffB pic in Curacao 2015

Octopus cyanea, Gray 1929, the Common Reef Octopus. Indo-Pacific; Red Sea to Hawai'i. Common reef species. Has a prominent black spot surrounded by another black ring near base of arm web. N. Sulawesi pic. 

Octopus (cyanea?) Below, three pix of the same specimen (I shot them in sequence), off of Queensland, Australia and one flushed red in consternation in Hawai'i at right. . 

Verticals (Full/Cover Page Sizes Available
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Octopus "guanacaste", the Costa Rica Octopus. Costa Rica (Pacific side) 2011 

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Octopus macropus, the White-Spotted Octopus. 12-20 inches. Here is a small individual off of Cozumel at night. 

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Octopus marginatus, the Blueveined or Coconut Octopus. Some pix of a few in the Lembah Strait, Sulawesi, Indonesia.

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Octopus vulgaris Cuvier 1797, Common Octopus. Worldwide in tropical seas. Have a dark ring around each sucker.  Most commonly occurred octopus species out during the day. One in Cancun, Mexico, another in St. Thomas, U.S.V.I. 

Octopus sp. The Mimic Octopus. Celebrated, though not as much as the Wonderpus (another Octopus sp.) for its still and active posturings pretending to be a Mantis, Lionfish... to avoid predation, sneak up on food organisms... N. Sulawesi

I'm a flatfish I'm a lionfish What am I?
Wunderpus photogenicus Hochberg, Normal & Finn 2006. Here is the "king of mimic octopi" the Wonderpus... able to mimic many marine creatures in a very short while... changing its repertoire if others "don't work".  Here in the muck in shallow water near KBR. 

As a Mantis Shrimp As a Seasnake
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Octopus sp. Another of a few more unidentified species (to me, science it seems...) found in Sulawesi, Indonesia. This one called the Long Arm Octopus locally. Here in the muck in shallow water near KBR. 

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Hairy Octopus sp. U1. Another of a few more unidentified species (to me, science it seems...) Bali 2014. About 5 cm./2" in length.


Octopus sp. Yet another of a few more unidentified species found in Sulawesi, Indonesia.  Here above and in the muck in shallow water near KBR. 

Bigger PIX:
The images in this table are linked to large (desktop size) copies. Click on "framed" images to go to the larger size.

To: Part 2, Squids, Cuttlefishes:

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