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Euaxoctopus panamensis, commonly known as the crescent octopus, is the best described species of Euaxoctopus.
Little is known regarding the coloration of Euaxoctopus panamensis in life, although preserved specimens are gray in color and characterized by dark, crescent-shaped markings on the octopus' mantle, bordered by lightly colored streaks which are believed to be iridescent in life. Their mantles grow to 3.2 cm (1.3 in), and their bodies grow to a total length of 20 cm (7.9 in). Males are characterized by a hectocotylus as their third left arm which is approximately 1/3 the size of the corresponding right arm.[1] E. panamensis is also characterized by an unusual digestive tract, featuring a left salivary gland twice the size of the right gland, and both glands fused together around the crop.[2]
E. panamensis is found offshore in the Gulf of Panama and Costa Rica, as far south as Ecuador. The species has been collected from 30 to 40m deep, though its true depth range is unknown. It is usually found in soft mud substrates.[3]
Females produce small eggs, approximately 1.4x0.5mm.[4] These eggs hatch into planktonic paralarvae, identifiable due to their long second arms.[5]
Euaxoctopus panamensis, commonly known as the crescent octopus, is the best described species of Euaxoctopus.
Euaxoctopus panamensis is een soort in de taxonomische indeling van de inktvissen, een klasse dieren die tot de stam der weekdieren (Mollusca) behoort. De inktvis komt enkel in zout water voor en is in staat om van kleur te veranderen. Hij beweegt zich voort door water in zijn mantel te pompen en het er via de sifon weer krachtig uit te persen. De inktvis is een carnivoor en zijn voedsel bestaat voornamelijk uit vis, krabben, kreeften en weekdieren die ze met de zuignappen op hun grijparmen vangen.
De inktvis komt uit het geslacht Euaxoctopus en behoort tot de familie Octopodidae. Euaxoctopus panamensis werd in 1971 beschreven door Voss.[1]
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