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      A new species of the genus Hyalella (Crustacea, Amphipoda) from northern Mexico

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          Abstract

          A new species, Hyalella tepehuana sp. nov., is described from Durango state, Mexico, a region where studies on Hyalella have been few. This species differs from most species of the North and South American genus Hyalella in the number of setae on the inner plate of maxilla 1 and maxilla 2, characters it shares with Hyalella faxoni Stebbing, 1903. Nevertheless, H. faxoni , from the Volcan Barva in Costa Rica, lacks a dorsal process on pereionites 1 and 2. Also, this new species differs from other described Hyalella species in Mexico by the shape of the palp on maxilla 1, the number of setae on the uropods, and the shape of the telson.

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          Most cited references 19

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          Diversity and arrangement of the cuticular structures of Hyalella (Crustacea: Amphipoda: Dogielinotidae) and their use in taxonomy

          This study describes the morphology and arrangement of the cuticular structures of Hyalella castroi González, Bond-Buckup & Araujo, 2006 and Hyalella pleoacuta González, Bond-Buckup & Araujo, 2006, to identify specific characters that can be used in taxonomstudies of this genus. The entire cuticular surface of both species was examined by optical and scanning electron microscopy. The data obtained were compared with available information for other members of Peracarida, mainly Amphipoda and Isopoda. Five different types of cuticular structures, including 30 types of setae, four types of microtrichs, three types of pores, and some structures formed by setules and denticles were identified. The results were compared with other groups of gammarids, and peracarideans, such as Thermosbaenacea and Isopoda. The use of cuticular structures as a tool for taxonomic studies showed important results, not only at species level, but also at genus, and family levels.
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            Amphipoda from Costa Rica

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              Hyalella montezuma, a new species (crustacea: amphipoda) from montezuma well, Arizona

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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048D35-BB1D-5CE8-9668-537E44BD4C7E
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2020
                18 June 2020
                : 942
                : 1-19
                Affiliations
                [1 ] Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México; Av. Ciudad Universitaria 3000, C.P. 04510, Coyoacán, Ciudad de México, México Universidad Nacional Autónoma de México México Mexico
                [2 ] Facultad de Ciencias, Universidad Nacional Autónoma de México; Av. Ciudad Universitaria 3000, C.P. 04510, Coyoacán, Ciudad de México, México Universidad Nacional Autónoma de México México Mexico
                Author notes
                Corresponding author: Aurora Marrón-Becerra ( auro13@ 123456hotmail.com )

                Academic editor: T. Horton

                Article
                50399
                10.3897/zookeys.942.50399
                7316804
                Aurora Marrón-Becerra, Margarita Hermoso-Salazar, Gerardo Rivas

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Categories
                Research Article
                Amphipoda
                Crustacea
                Hyalellidae
                Identification Key
                Taxonomy
                Cenozoic
                Mexico

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