Schizurakrops Wittmann, 2024, gen. nov.

• Main Author: Wittmann, Karl J.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2024
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Mysida; Mysidae; Schizurakrops; Antarc*; Antarctic
• Online Access: https://doi.org/10.5281/zenodo.12206540

Schizurakrops gen. nov. urn:lsid:zoobank.org:act: 4AF77738-BAF1-4A19-BFDC-D735B03FBAD5 Type species Schizurakrops meesi gen. et sp. nov. by monotypy and present designation. Diagnosis Based on adult female. Carapace anteriorly produced into large, spearhead-like rostrum. Eye rudiments set apart, not connected by membranous integument; dorsoventrally strongly flattened, with one acute distal projection from disto-lateral edge, no visual elements, no ocular papilla. Three segments of the antennular trunk separated by transverse articulations. Antennal peduncle with three segments lined in a single plane. Antennal scale not subdivided, without terminal lobe; mesial margin setose; bare portion of lateral margin ending in a single, strong tooth. Clypeus with unpaired median, blade-like anterior process. Labrum normal, anteriorly rounded; no longitudinal ridge. Thoracomeres and pleomeres normal. Thoracic endopod 2 not prehensile. Three pairs of oostegites contributing to wall of marsupium. Female pleopods reduced to setose rods with residual differentiation of pseudobranchial lobe. Uropods undivided, setose. Telson elongate, roughly trapeziform, with deep apical incision lined with laminae, no seta. Disto-lateral lobes with spines on narrowly transverse terminal margin. Etymology The genus name is a noun with Greek masculine ending, condensed from the Ancient Greek verb ‘σχίζω’ (‘divide’), noun ‘οὐρά’ (‘tail’), adjective ‘άκρος’ (‘acute’) and noun ‘ὤψ’ (‘eye’), referring to the cleft telson in combination with rostrally acute eye rudiments. Published as part of Wittmann, Karl J., 2024, The Mysidae (Crustacea, Mysida) of the ANDEEP I-III expeditions to the Antarctic deep sea with the description of twelve new species, establishment of four new genera and with world-wide keys to the species of Erythropinae and Mysidellinae, pp. 1-180 in European Journal of Taxonomy 940 on pages 102-103, DOI:10.5852/ejt.2024.940.2577, http://zenodo.org/record/12206315