Biology:Callistoctopus rapanui
| Callistoctopus rapanui | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Octopoda |
| Family: | Octopodidae |
| Genus: | Callistoctopus |
| Species: | C. rapanui
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| Binomial name | |
| Callistoctopus rapanui Voss, 1979
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Callistoctopus rapanui, or the rapanui octopus,[1] is the only endemic octopus species in Rapa Nui (or Easter Island).[2] It was first described by Gilbert L. Voss in 1979[3] as Octopus rapanui.[4]
Description
Callistoctopus rapanui is large and muscular, with a mantle length of up to 115 millimetres (4.5 in) and a total length of up to 550 millimetres (22 in). It has scattered rough tubercles across the body.[5] The arms are 3.5 to 4.5 times the length of the mantle, and have two rows of suckers each. C. rapanui is cream-gray with a darker purple hue on its dorsal surfaces.[6] Its most distinctive feature is a "straight, out-turned" rostrum.[7]
Distribution
Callistoctopus rapanui is subtropical[1] and only known in Rapa Nui.[6] It is benthic,[1] and found at depths of zero to four metres (0 to 13 ft).[6]
Use by humans
Callistoctopus rapanui are fished for food in Rapa Nui, and make up 0.6% of subsistence fishing catch.[8]
References
- ↑ 1.0 1.1 1.2 "Callistoctopus rapanui (Voss, 1979)". https://www.sealifebase.ca/summary/Callistoctopus-rapanui.html.
- ↑ Carrasco, Sergio A.; Meerhoff, Erika; Yannicelly, Beatriz; Ibanez, Christian M. (2019). "First Records and Descriptions of Early Life Stages of Cephalopods from Rapa Nui (Easter Island) and the Nearby Apolo Seamount". Pacific Science 73 (1): 163–175. doi:10.2984/73.1.8. https://bioone.org/journals/pacific-science/volume-73/issue-1/73.1.8/First-Records-and-Descriptions-of-Early-Life-Stages-of-Cephalopods/10.2984/73.1.8.short.
- ↑ Voss, Gilbert L. (1979). "Octopus rapanui, New Species from Easter Island (Cephalopoda: Octopoda)". Proceedings of the Biological Society of Washington 92 (2): 360–367. https://www.biodiversitylibrary.org/page/35514071#page/384/mode/1up.
- ↑ Finn, Julian (2017-11-18). "Callistoctopus rapanui (Voss, 1979)". https://www.marinespecies.org/aphia.php?p=taxdetails&id=534572.
- ↑ Rehder, Harold A. (1980) (in en). The Marine Mollusks of Easter Island (Isla de Pascua) and Sala y Gomez. Smithsonian Contributions to Zoology 289. Washington, DC: Smithsonian Institution Press. https://repository.si.edu/bitstream/handle/10088/5242/SCtZ-0289-Lo_res.pdf?sequence=2.
- ↑ 6.0 6.1 6.2 Norman, M. D.; Finn, J. K.; Hochberg, F. G. (2016). "Family Octopodidae". in Jereb, Patrizia (in en). Cephalopods of the World: An Annotated and Illustrated Catalogue of Cephalopod Species Known to Date. FAO Species Catalogue for Fishery Purposes No. 4, Vol. 3. 3: Octopods and Vampire Squids. Rome, Italy: Food and Agriculture Organization of the United Nations. ISBN 978-92-5-107989-8. https://www.fao.org/3/i3489e/i3489e.pdf.
- ↑ Voight, Janet R. (1998). "An Overview of Shallow-Water Octopus Biogeography". in Voss, Nancy A. (in en). Systematics and Biogeography of Cephalopods. Smithsonian Contributions to Zoology Number 586. II. Washington, DC: Smithsonian Institution Press. https://repository.si.edu/bitstream/handle/10088/6317/SCtZ-0586_VolII-Lo_res.pdf?isAllowed=y&sequence=2#page=279.
- ↑ Zylich, Kyrstn; Harper, Sarah; Licandeo, Roberto; Vega, Rodrigo; Zeller, Dirk; Pauly, Daniel (2014). "Fishing in Easter Island, a recent history (1950-2010)". Latin American Journal of Aquatic Research 42 (4): 845–856. doi:10.3856/vol42-issue4-fulltext-11. ISSN 0718-560X. http://dx.doi.org/10.3856/vol42-issue4-fulltext-11.
Wikidata ☰ Q13449625 entry
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