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Ocypode ceratophthalma (Pallas)

Horn-eyed Ghost-Crab (Ocypode ceratophthalma)

Distribution:

Cook Islands: Aitutaki, Pukapuka, Rakahanga, Rarotonga
Fiji: Kadavu, Makaluva, Viti Levu
Gambier Islands: Mangareva
Hawai’i Islands: O’ahu
Kiribati: Abariringa, Kiritimati, Palmyra, Tabuaeran
Marquesas: Eiao, Nuku Hiva
Norfolk Islands
Samoa: Tutuila, ‘Upolu
Society Islands: Bora Bora, Manuae, Mo’orea, Ra’iatea, Tahiti
Wallis & Futuna: Alofi, ‘Uvea
Tuamotu Archipelago: Fakarava, Makatea, Makemo, Marutea (Sud), Mataiva, Rangiroa, Raraka, Raroia, Taiaro, Takapoto, Tikehau

local names:

avi’ivi’i – Samoa
kalami wolomatua – Pukapuka / Cook Islands
kohite – Rakahanga / Cook Islands
pa’a – Samoa

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The Horn-eyed Ghost-Crab is indigenous to the Indo-Pacific, where it occurs from the coasts of East Africa far into Polynesia, where the animals run about the beaches in search for edible things, including washed up dead fish, or dead sea birds, but also newly hatched sea turtles.

It is a quite large species with a carapace size of up to 8 cm in diameter. It can be distinguished from other related crabs by the eyestalks extending beyond the eyes into long points, those stalks are longer in males, and shorter or almost absent in females.

In Samoa, the species is called avi’ivi’i resp. pa’a.

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References:

[1] Katsushi Sakai; Michael Türkay: Revision of the genus Ocypode with the description of a new genus, Hoplocypode (Crustacea: Decapoda: Brachyura). Memoirs of the Queensland Museum 56(2): 665-793. 2013

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Photo: J. Poupin; by courtesy of J. Poupin

http://decpoda.ecole-navale.fr/index.php
http://decapoda.free.fr

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edited: 19.12.2018