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Zootaxa
Magnolia Press
Zootaxa

Magnolia Press

1175-5326

Zootaxa/Journal ZootaxaSCIISTPAHCI
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    Species diversity of Hyalinobatrachium glassfrogs (Amphibia: Centrolenidae) from the Guiana Shield, with the description of two new species

    RAFFAEL ERNSTCARLES VILAJOSE AYARZAGUENAMICHEL BLANC...
    55页
    查看更多>>摘要:Basic information about the taxonomy, biology and distribution of Hyalinobatrachium glassfrogs of the Guiana Shield (GS) is scarce, ambiguous, and in many cases even contradictory. In this review we aim to clarify the current taxonomic status of thisgroup by means of phenotypic (morphology, morphometries and bioacoustics) and molecular (mitochondrial DNA sequences) comparisons. Eight species have previously been recognized for the GS: H. crurifasciatum, H. eccentricum, H.fleischmanni (initially described as Hylella cappellei in the GS), H. iaspidiense (with the putative synonym H. nouraguense), H. ignioculus, H. mesai, H. mondolfii, and H. taylori. Our data support the resurrection of H. cappellei from its synonymy with H.fleischmanni. Hyalinobatrachium crurifasciatum, H. eccentricum, and if. ignioculus are proposed as junior synonyms of H. cappellei. We show that none of the four paratypes ofH. taylori belong to this species and we assign two to H. cappellei and two to H. mondolfii. Additional specimens previously identified as H. taylori are reassigned to H. cappellei, and hence H. taylori is redefined. Hyalinobatrachium nouraguense is confirmed as a junior synonym of H. iaspidiense. We also describe two new species of Hyalinobatrachium from French Guiana: Hyalinobatrachium kawense sp. nov. and Hyalinobatrachium tricolor sp. nov. In addition, and in concordance with the new taxonomic rearrangements, we provide diagnostic characters for all species, known distributions and main sources of references for their biology. We also report new distribution records for H. iaspidiense and H. mondolfii, and describe the formerly unknown tadpole of the later. Consequently, we recognize seven species of Hyalinobatrachium for the Guiana Shield: H. cappellei, H. iaspidiense, H. kawense sp. nov., H. mesai, H. mondolfii, H. taylori, and H. tricolor sp. nov. We discuss the suitability of integrative taxonomy as an approach to identify taxonomic uncertainty and consider its significance for conservation purposes. We also address the implications of our results to understand phylogeographic patterns in this area.

    New species of Radiospongilla (Porifera: Spongillidae) from Brazilian inland waters

    GILBERTO NICACIOWILLIAM SEVERIULISSES PINHEIRO
    8页
    查看更多>>摘要:Radiospongilla Penney & Racek, 1968, characterized by gemmoscleres radially arranged on gemmules and absence of microscleres, is widely distributed in the world across all zoogeographical regions except for Antarctica. In the Neotropical Region only two species are known so far: R. crateriformis (Potts, 1882) and R, amazonensis Volkmer-Ribeiro & Maciel, 1983. Here we describe a new species of Radiospongilla, R. inesi sp. nov., from 28 specimens collected between May 2007 to April 2010 from channelsand ponds at the Aquaculture Station of Universidade Federal Rural de Pernambuco, Rio do Prata Basin, Recife, Pernambuco State, Brazil. This new species differs from other species of Radiospongilla from South America in the morphology of its megascleresand gemmoscleres.

    First description of the female of Emblyna zherikhini (Marusik 1988) comb. n. (Araneae: Dictynidae)

    MIKHAIL M. OMELKO
    4页
    查看更多>>摘要:Emblyna Chamberlin 1948 is a fairly large Holarctic genus of dictynid spiders containing currently 75 nominal species (Platnick 2011). Most of the species (65) are known from the Nearctic Region. Although the genus was revised in the Nearctic (Chamberlin & Gertsch 1958) and several species were recently described from the West and East Palaearctic it remains poorly studied. Fourteen species are known from one sex only, either by males or by females. The internal structures of the epigyne are known only for some Palaearctic species. According to Lehtinen (1967) Emblyna differs from the related genus Dictyna Sundevall 1833 by having 2-3 metatarsal trichobothria (1 in Dictyna), a modified embolus in the male palp (simple in Dictyna) and a complex vulva in the female.