Decapoda - Brachyura - Grapsidae - Planes

Planes major (MacLeay, 1838)

World Distribution
Atlantic, including Brazil, particularly South Atlantic (cf. Manning & Holthuis, 1981: 235). Indo-West Pacific, from Cap of Good Hope to French Polynesia. Eastern Pacific, from California to Peru and Magellan strait; Oceanic Islands: Revillagigedo (Clarion), Clipperton, Galapagos. Includes Madagascar, Réunion, Lesser Antilles (Guadeloupe).

Environnement : Marine - Substrat/Association : Pelagic or bathypelagic

Vertical range : Pelagic or bathypelagic - Min-Max observed: 0-10 m

Mayotte data
Planes major (MacLeay, 1838) — Poupin et al., 2013c: 12, Glorieuses, Expedition Glorieuses December 2012 (new record), st. Dive 3 (drifting with a buoy) - Worldwide, South East Atlantic and IP from Mozambique, South Africa to Hawaii, French Polynesia, eastern Pacific California to Peru.

Réunion data
Planes cyaneus - Ribes-Beaudemoulin et al. 2002 : 178 (Réunion). - Planes major - Ng et al., 2008 : 217 (Synonymie). - Réunion, associated with a sea turtle (Caretta caretta), photo Stephane Ciccione 29 July 2018.

Central Pacific data (Wallis & Futuna, Polynesia, Clipperton, Easter Island)
CLIPPERTON - Planes major - Poupin et al., 2007 (Clipperton new record). - FRENCH POLYNESIA - Planes minutus - Rathbun, 1918: 253, pl. 63 (Marquesas). - Planes cyaneus. - Chace, 1951: 88 (Syn. and distribution). - Poupin, 1996a: 68, 76 (Checklist, with first record at Neilson bank, on a drifting buoy with cirripeds; coll. Frv Marara). - Nautilograpsus major - Ng & Ahyong, 2001: 97 (Nautilograpsus major MacLeay, 1838 - now in Planes - is a senior subjective synonym of Planes cyaneus Dana). - AAMP, Marquesas, 2012, Leg 3, St. MQ32-M, Hatutaa, drifting buoy, in cirripeds, coll. Mat Jolly, sample LC390.

Lesser Antilles data
Distribution: ICA (?Guadeloupe). Pelagic (floating objects). Pantropical.
Planes ?major - Guadeloupe , Karubenthos 2012, no station data, coll. D. Lamy, Baie Porte Enfer, 2012, subsurface, 0.5 m, 1 female, MNHN-IU-2013-4171, det. J. Poupin with hesitation [carapace feebly striated as in P. major but with lateral margins not strongly convex, more or less subquadratic, like in P. marinus].
Comment: Planes major is also reported in WA (e.g. Prado & Melo, 2002; Felder et al., 2009) as Planes cyaneus Dana, 1852. Following Ng & Ahyong (2001) and WoRMS (2016) P. cyaneus Dana should be accepted as Planes major (MacLeay).
This record of P. ?major from Guadeloupe is based on the examination of a single specimen with carapace almost smooth, only feebly striated (versus strongly striated in P. marinus). However the lateral margin of its carapace are not convex (as in P. major) but straight (as in P. marinus). The Guadeloupe specimen could also be an hybrid between P. marinus and P. minutus/major (these two species being potential synonyms in Pfaller et al., 2019, Ecology and Evolution, vol. 9, 957-974).

Comment(s) on data
Genomic results presented in Pfaller et al. (2019, Ecology and Evolution, vol. 9, 957-974) indicate that P. minutus (ATL) and P. major (IWP) are probably conspecific and that this 'P. minutus/major species' can hybridizes with P. marinus in the North Atlantic.

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database