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Free Content Eledone Palari, a New Species of Octopus (Cephalopoda: Octopodidae) from Australia

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A new species of octopus, Eledone palari (Cephalopoda: Octopodidae), is described and illustrated from Australian waters. It is the first record of the genus outside the Atlantic Ocean. The species can be easily distinguished from other congeners by characters that include: a broadly ovoid, dorso-ventrally compressed mantle, with a distinctive pattern of papillae on the dorsum, and a prominent ventro-lateral integumentary ridge or fold; short arms, with tips of non-hectocotylised arms of males modified into thickened spongy pads; a medium-sized ligula (5–9% of third right arm length in mature animals) and a large differentiated calamus; very large eggs (14–16 mm long); and five gill lamellae. The species lives on sand or mud bottom in offshore waters, in depths from 110–620 m. The animal is medium-sized: males mature at approximately 30 mm mantle length and females attain ovarian maturity at a mantle length of about 60 mm. The morphology of the calamus on the hectocotylus, and its implication for the definition of the genus Eledone, is discussed.

Document Type: Research Article

Publication date: 1991-09-01

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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