Abstract
In the present paper, a new species of Achaeus Leach, 1817, is described from Easter Island and dedicated to the memory of Michael Turkay. This record represents the first inachid spider crab and the sixth endemic brachyuran to be described from the island. It can be differentiated from congeners by its relatively short carapace, with the postorbital region not elongated, the arrangement and number of tubercles on the dorsal carapace surface, prominent hepatic lobe, presence of a large anterodistal lobe on the ocular peduncle, as well as structures of the third maxilliped and ambulatory legs.
Highlights
ABstract In the present paper, a new species of Achaeus Leach, 1817, is described from Easter Island and dedicated to the memory of Michael Türkay. This record represents the first inachid spider crab and the sixth endemic brachyuran to be described from the island
The only inachids previously known from the vicinity of the island are two deepwater species, Cyrtomaia platypes Yokoya, 1933, and Cyrtomaia danieli Zarenkov, 1990, which were reported from the adjacent Sala y Gómez and Nazca Seamounts (Zarenkov, 1990; Parin et al, 1997)
A new species of majoid belonging to the genus Achaeus Leach, 1817, is described and dedicated it to the memory of the late Michael Türkay
Summary
This article is part of the tribute offered by the Brazilian Crustacean Society in memoriam of Michael Türkay for his outstanding contribution to Carcinology e-ISSN 2358-2936 www.scielo.br/nau www.crustacea.org.br original article. ABstract In the present paper, a new species of Achaeus Leach, 1817, is described from Easter Island and dedicated to the memory of Michael Türkay. This record represents the first inachid spider crab and the sixth endemic brachyuran to be described from the island. It can be differentiated from congeners by its relatively short carapace, with the postorbital region not elongated, the arrangement and number of tubercles on the dorsal carapace surface, prominent hepatic lobe, presence of a large anterodistal lobe on the ocular peduncle, as well as structures of the third maxilliped and ambulatory legs. Key words Crustacea, Easter Island, endemic, southeastern Pacific, spider crab
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