Pudeoniscus Vandel 1963

Autor: Campos-Filho, Ivanklin Soares, Teixeira Lisboa, Jonathas, Monticelli Cardoso, Giovanna
Rok vydání: 2018
Předmět:
ISSN: 0022-2933
DOI: 10.5281/zenodo.5189585
Popis: Pudeoniscus Vandel, 1963 Pudeoniscus Vandel, 1963: 64; Lemos de Castro 1973: 3; Souza-Kury 1998: 665; Leistikow and Wägele 1999: 43; Schmalfuss 2003: 226; Schmidt 2003: 79; Schmidt and Leistikow 2004: 78; Magrini et al. 2010: 218; Lisboa et al. 2013: 396; Campos-Filho et al. 2017b: 70. Type species. Pudeoniscus birabeni Vandel, 1963 by original designation and monotypy. Diagnosis Cephalon as in family diagnosis; pereonite 1 epimera with dorsolateral furrow to fit antennae during conglobation, without schisma; dorsal cuticle with verruca-like scales, and dorsolateral furrow scaled; pereonites 1 – 3 with small ventral lobes; dorsal surface with long or fan-shaped scale-setae, sometimes giving hairy appearance; mandibles with molar penicil dichotomized; maxillula of 4 + 4 or 4 + 6 teeth, inner set cleft; maxilla bilobate; maxilliped endite without penicil, distal outer margin bearing one or two hooklike setae; dactylus with two claws, inner claw not surpassing outer claw, ungual seta simple not surpassing outer claw, dactylar seta surpassing outer claw; uropod as in family diagnosis; pleopod exopods with uncovered respiratory areas of Atracheodillo - type (see Figures 1 (d), 4(d – h), 5(a, b)). Remarks Lemos de Castro (1973) defined Pudeoniscus by having the dorsal surface covered with well developed scale-setae, pereonites 1 – 3 with ventral lobes, pereonite 1 without schisma, and neopleurae 3 – 5 distally narrow. As mentioned by the author, the genus differs from Brasiloniscus in the absence of schisma on pereonite 1 epimera and the reduced frontal shield. However, only the former character could be confirmed in the examination of Brasiloniscus material. The respiratory structures on pleopod exopods were never recognized by previous authors (Vandel 1963; Lemos de Castro 1973; Schmidt 2003). However, after the examination of the material used in this study, the presence of respiratory areas in all representatives of Pudeoniscidae is very clear (see Figures 1 (d), 4(d – h), 5(a, b)).
Published as part of Campos-Filho, Ivanklin Soares, Teixeira Lisboa, Jonathas & Monticelli Cardoso, Giovanna, 2018, A new genus and two new species of Pudeoniscidae Lemos de Castro 1973 (Crustacea: Isopoda: Oniscidea) from Brazil, pp. 457-482 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 52 (7 - 8) on page 461, DOI: 10.1080/00222933.2018.1437229, http://zenodo.org/record/5178448
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