Abstract
Three species in two genera of porcelain crabs are reported from the remote oceanic archipelago of Trindade and Martin Vaz one of which, Pachycheles meloi, new to science. The new species is morphologically similar to Pachycheles riisei (Stimpson, 1858) from the inner continental shelf between Florida (USA) and São Paulo (Brazil), of which Pachycheles meloi sp. nov. differs by a suite of carapace and appendage characters, including the presence of a pair of male gonopods on the second abdominal segment (absent in P. riisei). The new species is additionally compared to other congeners. Opportunity is taken to elaborate on the taxonomy of Petrolisthes amoenus (Guérin-Méneville, 1855) and Petrolisthes marginatus (Stimpson, 1859). The Trindade and Martin Vaz Archipelago contain a strongly depauperate porcellanid fauna of western Atlantic affinities.
References
Anker, A., Tavares, M. & Mendonça, J.B. (2016) Alpheid shrimps (Decapoda: Caridea) of the Trindade and Martin Vaz Archipelago, off Brazil, with new records, description of a new species of Synalpheus and remarks on the zoogeographical patterns in the oceanic islands of the tropical southern Atlantic. Zootaxa, 4138 (1), 1–58.
https://doi.org/10.11646/zootaxa.4138.1.1
Benedict, J.E. (1901) The Anomuran Collections made by the “Fish Hawk” Expedition to Porto Rico. Bulletin of the United States Fish Commission, 20 (2), 129–148.
Chace Jr., F.A. (1962) The non-brachyuran Decapod Crustaceans of Clipperton Island. Proceedings of the United States National Museum, 113 (3466), 605–635.
https://doi.org/10.5479/si.00963801.113-3466.605
Coelho, P.A. (1964) Lista dos Porcellanidae (Crustacea, Decapoda, Anomura) do litoral de Pernambuco e dos estados vizinhos. Trabalhos Oceanográficos da Universidade Federal de Pernambuco, Recife, 5/6, 51–68.
Coelho, P.A., Almeida, O.A., Bezerra, L.E.A. & Souza-Filho, J.F. (2007) An updated checklist of decapod crustaceans (infraorders Astacidea, Thalassinidea, Polychelida, Palinura and Anomura) from the northern and northeastern Brazilian coast. Zootaxa, 1519, 1–16.
Ferreira, L.A.A. (2009) Six additional records of porcellain crabs from Brazil (Anomura: Porcellanidae). Nauplius, 17 (1), 59–60.
Ferreira, L.A.A. & Melo, G.A.S. (2016) Porcelain crabs from Brazil (Crustacea: Decapoda: Anomura: Porcellanidae). Zootaxa, 4092 (2), 175–194.
https://doi.org/10.11646/zootaxa.4092.2.2
García-Madrigal, M.S. & Andréu-Sánchez, L.I. (2009) Los cangrejos porcelánidos (Decapoda: Anomura) del Pacífico sur de México, incluyendo una lista y clave de identificación para todas las especies del Pacífico oriental tropical. Ciencia y Mar, 13 (39), 23–54.
Gore, R.H. (1983) The identity of Petrolisthes marginatus Stimpson, 1859, and the description of Petrolisthes dissimulatus n. sp. (Crustacea: Decapoda: Porcellanidae). Proceedings of the Biological Society of Washington, 96 (1), 89–102.
Guérin-Méneville, F.E. (1855) Crustaceos. In: de la Sagra, R. (Ed.), Historia física, política y natural de la Isla de Cuba: História Natural. A. Bertrand, Paris, pp. 1–88.
Haig, J. (1960) The Porcellanidae (Crustacea: Anomura) of the Eastern Pacific. Allan Hancock Pacific Expedition, 24, 1–440.
Henderson, J.R. (1888) Report on the Anomura collected by H.M.S. Challenger during the years 1873–76. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873–76. Zoology, 27, 1–221.
Martins, L., Souto, C., Braga, J. & Tavares, M. (2016) Echinoidea and Holothuroidea (Echinodermata) of the Trindade and Martin Vaz Archipelago, off Brazil, with new records and remarks on taxonomy and species composition. Journal of the Marine Biological Association of the United Kingdon, 1, 1–35.
https://doi.org/10.1017/S0025315416001569
Melo, G.A.S. (1999) Manual de identificação dos Crustacea Decapoda do litoral brasileiro: Anomura, Thalassinidea, Palinuridea, Astacidea. Plêiade Fapesp, São Paulo, 551 pp.
Milne-Edwards, A. (1878) Description de quelques espèces nouvelles de Crustacés provenant du Voyage aux îles du Cap-Vert de M.M. Bouvier et de Cessac. Bulletin de la Société Philomathique de Paris, 7, 225–232.
Milne-Edwards, A. & Bouvier, E.-L. (1900) Crustacés décapodes. Première partie. Brachyures et anomoures, in Expéditions scientifiques du Travailleur et du Talisman pendant les années 1880, 1881, 1882, et 1883. Masson, Paris, 396 pp.
Moreira, C. (1920) Faune carcinologique de l’Île de la Trindade. Bulletin de la Societé Zoologique de France, 45, 125–132.
Peterson, R.G. & Stramma, L. (1991) Upper-level circulation in the South Atlantic Ocean. Progress in Oceanography, 26, 1–73.
https://doi.org/10.1016/0079-6611(91)90006-8
Podesta, G.P., Brown, O.B. & Evans, R.H. (1991) The annual cycle of satellite-derived sea surface temperature in the Southwestern Atlantic Ocean. Journal of Climate, 4, 457–467.
https://doi.org/10.1175/1520-0442(1991)004<0457:TACOSD>2.0.CO;2
Poupin, J. & Lemaitre, R. (2014) Porcellanid crabs from Guadeloupe Island (Crustacea, Decapoda, Anomura), with an updated list of species from the Lesser Antilles. Zoosystema, 36 (1), 5–27.
https://doi.org/10.5252/z2014n1a1
Rodríguez, I.T., Hernández, G. & Felder, D.L. (2005) Review of the Western Atlantic Porcellanidae (Crustacea: Decapoda: Anomura) with new records, systematic observations, and comments on biogeography. Caribbean Journal of Sciences, 41 (3), 544–582.
Santos, P.S., Soledade, G.O. & Almeida, A.O. (2012) Decapod crustaceans on dead coral from reef areas on the coast of Bahia, Brazil. Nauplius, 20 (2), 145–169.
https://doi.org/10.1590/S0104-64972012000200007
Schmitt, W.L. (1935) Crustacea Macrura and Anomura of Porto Rico and the Virgin Islands. Scientific Survey of Porto Rico and the Virgin Islands, 15, 125–227.
Stimpson, W. (1858) Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federata missa, Cadwaladaro Ringgold et Johanne Rodgers Ducibus, observavit et descripsit. Pars VII. Crustacea Anomura. Proceedings of the Academy of Natural Sciences of Philadelphia, 10, 225–252.
Stimpson, W. (1859) Notes on North American Crustacea, No. 1. Annals of the Lyceum of Natural History of New York, 7, 49–93.
https://doi.org/10.1111/j.1749-6632.1862.tb00142.x
Stramma, L. (2001) Current systems in the Atlantic Ocean. In: Steele, J.H., Thorpe, S.A. & Turekian, K.K. (Eds.), Encyclopedia of ocean sciences, 1st edition. Academic Press, New York, pp. 589–598.
https://doi.org/10.1006/rwos.2001.0356
Stramma, L., Ikeda, Y. & Peterson, G. (1990) Geostrophic transport in the Brazil Current region north of 20oS. Deep Sea Research, 37, 1875–1886.
https://doi.org/10.1016/0198-0149(90)90083-8
Veloso, V.G. & Melo, G.A.S. (1993) Taxonomia e distribuição da família Porcellanidae (Crustacea: Decapoda: Anomura) no litoral brasileiro. Iheringia, Série Zoologia, 75, 171–186.
Werding, B. (1977) Los porcellanideos (Crustacea: Anomura: Porcellanidae) de la region de Santa Marta, Colombia. Anales del Instituto de Investigaciones Marinas de Punta Betín, 9, 173–214.