Abstract
Anthuroid Isopoda are a poorly studied crustacean taxon in the Tropical Eastern Pacific, barely 21 species recorded, while to the southern Mexican Pacific, only eight species have been recorded. This study aims to increase knowledge of the species that inhabit the region. One hundred and one specimens from seven localities of the coast of Guerrero and Oaxaca were examined. Four new species were identified, belonging to three genera and two families: Negoescuanthura bastidai n. gen., n. sp., Colanthura gabinae n. sp., Paranthura amorensis n. sp. and P. tientai n. sp. A new genus is established, Negoescuanthura, very close to the genus Accalathura; the former is characterized by sucker-like cuticular structures on the antennal peduncle, while the latter lack these structures.
References
Bastida-Zavala, J.R., García-Madrigal, M.S., Rosas-Alquicira, E.F., López-Pérez, R.A., Benítez-Villalobos, F., Meraz-Hernando, J.F., Torres-Huerta, A.M., Montoya-Márquez, A. & Barrientos-Luján, N.A. (2013) Marine and coastal biodiversity of Oaxaca, México. Checklist, 9 (2), 329–390. https://doi.org/10.15560/9.2.329
Boyko, C.B., Bruce, N.L., Hadfield, K.A., Merrin, K.L., Ota, Y., Poore, G.C.B., Taiti, S., Schotte, M. & Wilson, G.D.F. (Eds.) (2008 onwards) World Marine, Freshwater and Terrestrial Isopod Crustaceans database. Anthuroidea Leach, 1814. Available from: http://www.marinespecies.org/isopoda/aphia.php?p=taxdetails&id=292944 (accessed 4 August 2021)
Brusca, R. C. (1980) A handbook to the common intertidal invertebrates of the Gulf of California. Vol. 2. The University of Arizona Press, Tucson, Arizona, 513 pp.
Brusca, R.C. & Iverson, E.W. (1985) A guide to the marine isopod Crustacea of Pacific Costa Rica. Revista de Biología Tropical, 33 (1), 1–77.
Brusca, R.C., Wetzer, R., Espinosa-Pérez, M.C. & Hendrickx, M.E. (2005) Crustacea 3. Peracarida: Isopoda. In: Hendrickx, M.E., Brusca, R.C. & Findley, L.T. (Eds.), Listado y Distribución de la macrofauna del Golfo de California, México. Parte 1. Invertebrados. Arizona-Sonora Desert Museum, EUA, Tucson, Arizona, pp. 131–137,
Campos, E. & Villarreal, G. (2008) Isópodos litorales y de aguas someras de la bahía de Todos los Santos, Baja California, México. Revista Mexicana de Biodiversidad, 79, 347–354. https://doi.org/10.22201/ib.20078706e.2008.002.566
Cruz-García, R., Cupul-Magaña, A.L., Hendrickx, M.E. & Rodríguez-Troncoso, A.P. (2013) Abundance of three species of Isopoda (Peracarida, Isopoda) associated with a coral reef environment in Pacific México. Crustaceana, 86 (13–14), 1664–1674. https://doi.org/10.1163/15685403-00003264
Espinosa-Pérez, M.C & Hendrickx, M.E. (2001) Checklist of isopoda (Crustacea: Peracarida: Isopoda) from the Eastern Tropical Pacific. The Belgian Journal of Zoology, 131 (1), 43–55.
García-Madrigal, M.S. (2010) Littoral Maeridae and Melitidae (Amphipoda: Gammaridea) from the Gulf of Tehuantepec, Mexico. Zootaxa, 2623 (1), 1–51. https://doi.org/10.11646/zootaxa.2623.1.1
Heard, R.W. & Vargas, R. (2015) Cyathura odaliscae, a new species of anthurid isopod (Crustacea: Peracarida) from a brackish habitat on the Pacific coast of Costa Rica. Zootaxa, 3915 (3), 423–432. https://doi.org/10.11646/zootaxa.3915.3.7
Hendrickx, M.E & Van der Heiden, A.M. (1983) New records of twelve species of crustaceans along the Pacific Coast of México. Anales del Instituto de Ciencias del Mar y Limnología, 10 (1), 227–280.
Jarquín-González, J. & García-Madrigal, M.S. (2013) Annotated checklist and keys for cumaceans (Crustacea: Peracarida) from the Tropical Eastern Pacific, with six new species from the Southern Mexican Pacific. Zootaxa, 3721 (3), 201–257. https://doi.org/10.11646/zootaxa.3721.3.1
Jarquín-González, J., García-Madrigal, M.S. & Carrera-Parra, L.F. (2015) First species of Leptochelia Dana, 1849 (Crustacea: Tanaidacea) from the Eastern Pacific, with an annotated checklist and identification keys for the genus. Zootaxa, 3920 (4), 501–533. https://doi.org/10.11646/zootaxa.3920.4.1
Jarquín-Martínez, U. & García-Madrigal, M.S. (2021) Six new species of Anthuridae (Peracarida: Isopoda) from the southern Mexican Pacific. European Journal of Taxonomy, 760, 61–100. https://doi.org/10.5852/ejt.2021.760.1441
Kensley, B. (1980) Records of anthurids from Florida, Central America, and South America (Crustacea: Isopoda: Anthuridea). Proceedings of the Biological Society of Washington, 93 (3), 725–742.
King, R.A. (2008) A re-description of Accalathura crenulata (Richardson, 1901) from type material and the description of two new Accalathura species (Crustacea: Isopoda: Cymothoida). Zootaxa, 1761 (1), 17–29. https://doi.org/10.11646/zootaxa.1761.1.2
Menzies, R.J. (1951) New marine isopods, chiefly from northern California, with notes on related forms. Proceedings of the United States National Museum, 101 (3273), 105–156. https://doi.org/10.5479/si.00963801.101-3273.105
Menzies, R.J. (1962) The marine isopod fauna of Bahia de San Quintin, Baja California, México. Pacific Naturalist, 3 (11), 337–348.
Negoescu, I. (1994) Isopoda Anthuridea (Crustacea: Peracarida) from New Caledonia and Loyalty islands (south-western Pacific Ocean). Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa”, 34, 147–225.
Nunomura, N. (1978) Tanaidaceans and anthuridean isopods collected on the Presidential Cruise of 1938. Proceedings of the Biological Society of Washington, 91 (4), 936–952.
Poore, G.C.B. (1984) Colanthura, Califanthura, Cruranthura, and Cruregens, related genera of the Paranthuridae (Crustacea: Isopoda). Journal of Natural History, 18, 697–715. https://doi.org/10.1080/00222938400770601
Poore, G.C.B. (2001) Families and genera of Isopoda Anthuridea. In: Kensley, B. & Brusca R.C. Isopod systematics and evolution. Balkema: Roterdam. Crustacean Issues, 13, pp. 63–173.
Poore, G.C.B. (2009) Leipanthura casuarina, new genus and species of anthurid isopod from Australian coral reefs without a “five-petalled” tail (Isopoda, Cymothoida, Anthuroidea). In: Bruce, N. (Ed.), Advances in the taxonomy and biogeography of Crustacea in the Southern Hemisphere. ZooKeys, 18, pp. 171–180. https://doi.org/10.3897/zookeys.18.198
Poore, G.C.B. & Bruce, N.L. (2012) Global diversity of marine isopods (except Asellota and crustacean symbionts). PLoS ONE, 7 (8), e43529. https://doi.org/10.1371/journal.pone.0043529
Schultz, G.A. (1977) Anthurids from the west coast of North America, including a new species and three new genera (Crustacea, Isopoda). Proceedings of the Biological Society of Washington, 90 (4), 839–848.
Wägele, J.W. (1984) Two new littoral Anthuridae from Baja California and redescription of Mesanthura occidentalis (Crustacea, Isopoda). Zoological Scripta, 13 (1), 45–57. https://doi.org/10.1111/j.1463-6409.1984.tb00022.x
Wetzer, R. & Brusca, R.C. (1997) Descriptions of the species of the suborders Anthuridea, Epicaridea, Flabellifera, Gnathiidea, and Valvifera. In: Blake, J.A. & Scott, P.V. (Eds.), Taxonomic atlas of the benthic fauna of the Santa Maria Basin and the Western Santa Barbara Channel. Vol. 11. The Crustacea Part 2. The Isopoda, Cumacea and Tanaidacea. Santa Barbara Museum of Natural History, Santa Barbara, California, pp. 1–120.