Field
Guide
Octopus (Octopodidae) & Squid (Coleoidea)
Identification for Divers.
Octopus (Octopodidae) & Squid (Coleoidea)
Identification for Divers.
Common Day Octopus - Octopus cyanea
A relatively large species with exceptional
camouflage capabilities changing colour and
skin texture at super fast speeds and they are
masters of escape, a 30cm span animal can
squeeze into a hole the size of a coin. Their
tentacles grow to about 80cm in length with
their head reaching 16cm. They have an oval
false eye below their true eye, only visible
during certain colour changes.
Wonderpus - Octopus sp.
Often confused with the Mimic Octopus, this
species appears to be very active during the
day. Differentiating itself from the mimic it
has greater marking definition being a little
rustier red and creamier white markings. The
wonderpuss has taller eye stalks and is less
likely to mimic but does have this ability.
Squid - Coleoidea
Squids grow very quickly and live for up to one
year depending on the species, however giant
squid can live for up to two years or more.
They are streamlined and have very large eyes
Hairy Octopus - Octopus sp
Like many small Octopi this species to our
knowledge remains undescribed and is quite a
rare find. Of all the Octopus we encounter this
is perhaps the one that disappears most
frequently in front of our eyes due to its
extremely cryptic behavior. Moving very slowly
and relying on camouflage to mimic its
surroundings it will blend itself into coral
rubble to the point where you can no longer see
it. The adults that we've observed have been
around 15cm in size (including tentacles). Able
to change coloration in a split second but
having quite distinctive reddish brown bands
across the tentacles and covered in branching
hairy filaments. It has long tentacles and a
cone shaped body. Observed on sandy bottoms,
coral reef and coral rubble areas and we assume
it to be widespread across Indo Pacific. Every
individual that we've seen has been at night or
during sunset, which leads us to believe they
could be nocturnal.
Blue Ring Octopus - Hapalochlaena sp.
This fascinating little creature is one of the
most poisonous on earth. Its venom contains
Maculotoxin - 10,000 times more potent than
cyanide. Growing to a maximum of 10cm, most are
smaller with an average life span of two years.
Two Ring Blue Ring - Octopus sp.
New discovery in the surrounding waters of
Kapalai, Sabah this tiny species is currently
undescribed, we have therefore given it a
common name of Two Ring, owing to the distinct
two bright blue rings shown on the mantel when
agitated. No larger than 1cm in size, we
believe to be a Juvenile and expect that it
wouldn't grow larger than the Hapalochlaena,
approximately 10cm. An appendage between the
eyes exists, clearly illustrated in these
images. Any information on this species is
welcomed.
Please visit our News & Events page for a recent encounter with this cryptic creature
Veined Octopus - Octopus marginatus
A very attractive little critter, identified by
dark vein like markings on body with white
suckers on the tentacles. Growing up to 15cm in
length it appears quite dumpy and pygmy like
with short legs. Although this species has
widespread distribution throughout Indian Ocean
and West Pacific, they are not commonly seen.
Our creature was discovered during the day on
the sandy, rubble bottom around Kapalai. If
disturbed tends to gracefully "walk" over the
substrate until it finds an appropriate hiding
place.Typically very well camouflaged and
hiding among the coral rubble.