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      First record of the family Stenasellidae (Crustacea, Isopoda) in Iran with the description of a new cave-dwelling species

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      Subterranean Biology

      Pensoft Publishers

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          Abstract

          A new cave isopod species of the genus StenasellusDollfus, 1897 (Stenasellidae) from Iran is reported and described. The new species, Stenasellustashanensis sp. n.was found in Tashan Cave (Khuzestan province, southwest Iran). A complete description and drawings of the new species are provided. This new species is morphologically close to S.vermeuleniMagniez & Stock, 2000 from Oman.

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          Most cited references 9

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          Phylogeography and molecular rates of subterranean aquatic Stenasellid Isopods with a peri-Tyrrhenian distribution.

          The subterranean Isopods belonging to the genus Stenasellus have an interesting disjunct distribution in the peri-Tyrrhenian area with morphologically closely related taxa occurring in Sardinia, Corsica, Tuscany and in the Pyrenees phreatic and interstitial waters. Because the dispersal capacities of these organisms are limited, their distribution has been associated traditionally with the tectonic events leading to the separation of the Sardinia-Corsica microplate from the Pyrenees and its subsequent movement towards the Italian peninsula. We sequenced a fragment of the mtDNA cytochrome oxidase I gene (COI) for multiple populations of the S. racovitzai species-group (Corsica, Sardinia, Tuscany) and S. virei (Pyrenees). We found that multiple phylogenetic analyses always gave the same topology, which is consistent with the genetic relations found using allozyme data, and with the palaeogeography of the area. The molecular data suggest that a combination of vicariance and dispersal events explain most effectively the present distribution pattern of these organisms. We also calculated COI rates and calibrated them against absolute time, taking advantage of the availability of two geologically based time estimates. Rates on all substitutions are similar to those published for other crustaceans for the same COI fragment, including taxonomically and ecologically distant groups. Rates on third codon positions or on transversions are generally lower than those found in other crustaceans.
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            Global diversity of Isopod crustaceans (Crustacea; Isopoda) in freshwater

             George Wilson (2008)
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              Making future taxonomy of Niphargus (Crustacea Amphipoda Niphargidae) in the Middle East easier DELTA database of Middle East species with description of four new species from Iran

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                Author and article information

                Journal
                Subterranean Biology
                SB
                Pensoft Publishers
                1314-2615
                1768-1448
                June 20 2018
                June 20 2018
                : 26
                : 27-38
                Article
                10.3897/subtbiol.26.25950
                © 2018

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