A new species of isopod of the genus Curassanthura (Cymothoida, Anthuroidea, Leptanthuridae) from anchialine caves of the Yucatan Peninsula, Mexico

in Crustaceana
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Abstract

A new stygobitic isopod from the anchialine systems of the Yucatan Peninsula, Mexico, is described, bringing the total number of anchialine isopods to seven. Curassanthura yucatanensis sp. nov. of the family Leptanthuridae is the first species of the genus to be recorded from a continental site. It can be distinguished from the other known species in the genus by the shape of the head, wider than long, and the number of robust setae (30) on the palmar margin of the propodus of pereopod 1.

A new species of isopod of the genus Curassanthura (Cymothoida, Anthuroidea, Leptanthuridae) from anchialine caves of the Yucatan Peninsula, Mexico

in Crustaceana
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References
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Figures
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    Map of the Yucatan Peninsula of Mexico showing the localities where Curassanthura yucatanensis sp. nov. was collected.

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    Curassanthura yucatanensis sp. nov., female holotype: A, habitus, dorsal; B, habitus, lateral; C, pereopod 1 and detail of spine; D, antenna 2; E, antenna 1; F, dorsal view of head and pereonite 1; G, lateral view of anterior portion. Scale bars are: A, B = 2 mm; C = 1.5 mm; D, E, G = 1.0 mm; F = 0.5 mm.

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    Curassanthura yucatanensis sp. nov., female holotype: A, lateral view of head region: Mdp, mandibular palp; Md, mandible; Mx, maxilla; Mxp, maxilliped; B, pleon and telson, dorsal view: P7, pereonite 7; Pl1, pleopod 1; Ur, uropod; T, telson; numbers 1-6, pleonites 1-6; C, pleopod 1, ventral view; D, pereopod 2; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, pereopod 6; I, left uropod, dorsal view; J, pleopod 1; K, pleopod 2. Scale bars are: A = 0.4 mm, B-H = 1.0 mm, I-K = 0.5 mm.

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    Comparison of selected characters among the species of Curassanthura Kensley, 1981

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