Abstract
A new alpheid shrimp, Leslibetaeus coibita, n. gen., n. sp., is described on the basis of two specimens extracted from crevices in a shale rock on the rocky intertidal shore in the Isla Coiba National Park, Pacific coast of Panama. Leslibetaeus is characterized by absence of rostrum and orbital teeth; eyes being only partially covered by carapace; sixth abdominal somite without articulated plate; first segment of the antennular peduncle without tooth on ventromesial carina; short scaphocerite; tip of third maxilliped with stout spines; and strap-like epipods present on third maxilliped and first to fifth pereiopod; stout symmetrical chelipeds, with carpus distally strongly lobed and bearing two rows of setae mesially, and chela without snapping mechanism; carpus of second pereiopod five-segmented, with second segment distinctly longer than first; ischium and merus of third pereiopod unarmed. The new genus appears to be relatively basal and not closely related to any of the currently described alpheid genera. The finding of this new taxon in a relatively accessible habitat indicates a yet unexplored biological potential of the Isla Coiba National Park.References
Abele, L.G. (1975) The macruran decapod Crustacea of Malpelo Island. Smithsonian Contributions to Zoology, 176, 69–85.
Abele, L.G. & Kim, W. (1989) The decapod crustaceans of the Panama Canal. Smithsonian Contributions to Zoology, 482, 1–50.
Alvarez, F., Camacho, M.E. & Villalobos, J.L. (1996) The first species of Prionalpheus from the eastern Pacific, and new records of caridean shrimp (Crustacea: Decapoda: Caridea) from the western coast of Mexico. Proceedings of the Biological Society of Washington, 109 (4), 715–724.
Anker, A. & Dworschak, P.C. (in press) Jengalpheops rufus, gen. nov., sp. nov., a new commensal alpheid shrimp from the Philippines (Crustacea: Decapoda). Zoological Studies.
Anker, A. & Felder, D.L. (2005) Description of Coutieralpheus setirostris, new genus, new species, an infaunal alpheid shrimp (Crustacea, Decapoda) from Florida, U.S.A. Crustacean Research, 34, 40–52.
Banner, A.H. & Banner, D.M. (1960) Contributions to the knowledge of the alpheid shrimp of the Pacific Ocean, part VII: On Metabetaeus Borradaile, with a new species from Hawaii. Pacific Science, 15 (3), 299–303.
Boone, L. (1931) A collection of anomuran and macruran Crustacea from the Bay of Panama and the fresh waters of the Canal zone. Bulletin of the American Museum of Natural History, 63 (2), 137–189.
Carvacho, A. (1989) Les crevettes carides du Golfe de Californie IV. Alpheus confusus n. sp. Crustaceana, 56 (1), 58–61.
Chace, F.A. Jr. (1937) Caridean decapod Crustacea from the Gulf of California and the west coast of Lower California. Part VII. In: The Templeton Crocker Expedition. Zoologica, New York Zoological Society, 22 (8), 109–138.
Chace, F.A. Jr. (1962) The non-brachyuran decapod crustaceans of Clipperton Island. Proceedings of the United States National Museum, 113 (3466), 605–635.
Christoffersen, M.L. & Ramos, G.E. (1987) A new snapping shrimp (Caridea, Alpheidae) from the Pacific coast of Colombia. Revista Biología Tropical, 35, 333–338.
Christoffersen, M.L. & Ramos, G.E. (1988) A new species of Alpheus (Caridea, Alpheidae) from the Pacific coast of Colombia. Revista Nordestina de Biologia, 6, 61–65.
Coutière, H. (1900) Sur quelques Alpheidae des côtes américaines (Collection de l’United States National Museum Washington). Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences, 131, 356–358.
Coutière, H. (1909) The American species of snapping shrimps of the genus Synalpheus. Proceedings of the United States National Museum, 36 (1659), 1–93.
De Grave, S. & Anker, A. (2000) A new genus and new species of alpheid shrimp (Crustacea: Decapoda) from Papua New Guinea. Raffles Bulletin of Zoology, 48 (2), 249–256.
Felder, D.L., Nates, S.F. & Robles, R.R. (2003) Hurricane Mitch: Impacts of bioturbating crustaceans in shrimp ponds and adjacent estuaries of coastal Nicaragua. Open File Report 03–179, 1–70.
Hart, J.F.L. (1964) Shrimps of the genus Betaeus on the Pacific coast of North America with descriptions of three new species. Proceedings of the United States National Museum, 115, 431–466.
Hermoso-Salazar, A.M., Wicksten, M. & Morrone, J.J. (2005) Redescriptions and taxonomic notes on species of the Synalpheus townsendi Coutière, 1909 complex (Decapoda: Caridea: Alpheidae). Zootaxa, 1027, 1–26.
Hobbs, H.H. Jr. (1983) The African shrimp genus Potamalpheops in Mexico (Decapoda: Alpheidae). Crustaceana, 44 (2), 221–224.
Holthuis, L.B. (1952) Avdelningen The Crustacea Decapoda Macrura of Chile. Reports of the Lund University Chile Expedition 1948–49, N° 5. Lunds Universitets Årsskrift, Nyi Föijd (new series), Avdelningen, 2, 47 (10), 1–110.
Holthuis, L.B. (1980) Alpheus saxidomus new species, a rock-boring snapping shrimp from the Pacific coast of Costa Rica, with notes on Alpheus simus Guérin-Méneville, 1856. Zoologische Mededelingen, 55, 47–58.
Kensley, B.F. (1988) New species and records of cave shrimps from the Yucatan Peninsula (Decapoda: Agostocarididae and Hippolytidae). Journal of Crustacean Biology, 8, 688–699.
Kim, W. & Abele, L.G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda; Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1–119.
Knowlton, N. & Mills, D.K. (1992) The systematic importance of colour and colour pattern: evidence for complexes of sibling species of snapping shrimp (Caridea: Alpheidae: Alpheus) from the Caribbean and Pacific coasts of Panama. Proceedings of the San Diego Society of Natural History, 18, 1–5.
McClure, M.R. & Wicksten, M.K. (2000) Alpheus Taxonomic studies of snapping shrimp of the Alpheus “edwardsii” group from the Galapagos Islands. Proceedings of the Biological Society of Washington, 113 (4), 964–973.
Méndez, M.G. & Wicksten, M.K. (1982) Notalpheus imarpe: a new genus and species of snapping shrimp from western South America (Decapoda: Alpheidae). Proceedings of the Biological Society of Washington, 95 (4), 709–713.
Miya, Y. (1997) Stenalpheops anacanthus, new genus, new species (Crustacea, Decapoda, Alpheidae) from the Seto Inland Sea and the Sea of Ariake, South Japan. Bulletin of Faculty of Liberal Arts, Nagasaki University, 38 (1), 145–161.
Powell, C.B. (1979) Three alpheid shrimps of a new genus from West African fresh and brackish waters: taxonomy and ecological zonations (Crustacea Decapoda Natantia). Revue de Zoologie Africaine, 93 (1), 116–150.
Ramos, G.E. (1997) Alpheus agrogon, a new species of alpheid shrimp (Decapoda: Alpheidae) from Gorgona Island, Pacific coast of Colombia. Revista de Biología Tropical, 44 (3)–45 (1), B, 395–400.
Ramos, G.E. & Von Prahl, H. (1989) Alpheus utriensis, new species (Caridea: Alpheidae) from Utria Sound, Pacific Coast of Colombia. Journal of Crustacean Biology, 9, 477–481.
Ríos, R. (1992) Camarones carideos del Golfo de California. VI. Alpheidae del estuario de Mulegé y de Bahía Concepción, Baja California Sur, México (Crustacea: Caridea). Proceedings of San Diego Society of Natural History, 14, 1–13.
Ríos, R. & Carvacho, A. (1983a) Caridean shrimps of the Gulf of California. I. New records, with some remarks on amphi-American distribution. Pacific Science, 36 (4), 459–465.
Ríos, R. & Carvacho, A. (1983b.) Leptalpheus mexicanus, new species (Crustacea, Decapoda, Alpheidae). Caridean shrimps of the Gulf of California III. Journal of Crustacean Biology, 3 (2), 306–313.
Wicksten, M.K. (1981) The species of Automate (Caridea: Alpheidae) in the eastern Pacific Ocean. Proceedings of the Biological Society of Washington, 94 (4), 1104–1109.
Wicksten, M.K. (1983) A monograph on the shallow-water caridean shrimps of the Gulf of California, Mexico. Allan Hancock Foundation Monographs, 13, 1–59.
Wicksten, M.K. (1988) A new species of snapping shrimp from the Pacific coast of Colombia (Decapoda, Caridea, Alpheidae). Crustaceana, 54 (1), 1–4.
Wicksten, M.K. (1989) Synalpheus arostris and Philocheras lapillus, two new species of caridean shrimps from the tropical eastern Pacific. Proceedings of the Biological Society of Washington, 102 (1), 78–83.
Wicksten, M.K. (1990) On the status of Alpheus barbara Lockington (Crustacea: Caridea: Alpheidae). Proceedings of the Biological Society of Washington, 103 (1), 100–102.
Wicksten, M.K. (1992) A new species of Alpheopsis (Decapoda, Alpheidae) from the tropical eastern Pacific, with a key to the species of Alpheopsis of the Americas. Crustaceana, 63 (1), 51–56.
Wicksten, M.K. (1993) Caridean and stenopodid shrimp of the Galapagos Islands. In: James, M.J. (Ed.), Galapagos Marine Invertebrates. Chapter 6. Plenum, New York, 147–156 pp.
Wicksten, M.K. (1994a) Taxonomic remarks on two species of the genus Synalpheus from the tropical eastern Pacific (Decapoda, Alpheidae). Bulletin du Muséum National d’Histoire Naturelle, série 4, section A, 16 (1), 209–212.
Wicksten, M.K. (1994b) On the identity of snapping shrimp described and identified by W.N. Lockington, 1878. Bulletin of South California Academy of Sciences, 93, 110–117.
Wicksten, M.K. (1999) A new genus and species of alpheid shrimp (Caridea: Alpheidae) from the Galapagos Islands. Crustacean Research, 28, 104–111.
Wicksten, M.K. & Hendrickx, M.E. (1986) Alpheopsis cortesiana, a new snapping shrimp from the Gulf of California. Proceedings of the Biological Society of Washington, 99 (2), 196–197.
Xuan, N.V. (2001) A new alpheid shrimp (Crustacea: Decapoda: Alpheidae) from South Vietnam. Zoologische Mededelingen, Leiden, 75 (1–15), 217–228.