查看更多>>摘要：During two sampling campaigns carried out in 2004 and 2008 on the shelf off Angola and northern Namibia (South West Africa), sixteen cumacean species belonging to the families Bodotriidae, Diastylidae and Pseudocumatidae were collected. Two of them are new to science, namely Bodotria fwnae and Heterocuma ambrizetensis. Figures are drawn for the new species and additional for seven species, which are partially described up to date. Additionally, an adapted key to the species of Heterocuma is provided.Taxonomic and morphological features were analysed and the findings were compared and discussed with earlier investigations from West Africa.
FRANK GLAWPHILIP-SEBASTIAN GEHRINGJORN KOHLERMIGUEL VENCES...
17页
查看更多>>摘要：Field surveys in northeastern Madagascar have revealed the existence of a new Blommersia frog species (Anura: Mantellidae), populations of which were recorded within a 30 km radius of the town of Maroantsetra. We combined morphological, bioacoustic and molecular techniques and show that it is indeed a distinct evolutionary lineage which we describe as Blommersia variabilis Sp. n0v. from the type locality Ambodivoahangy near Maroantsetra. This new species is morphologically most similar to B. wittei by the presence of vomerine teeth and relatively small, well-delimited femoral glands, but differs from that species by advertisement call consisting of only 2-6 notes of comparatively longer duration, and a wider separation of femoral glands in males. Itis associated with dense secondary vegetation fringing lentic water bodies. Anecdotal evidence suggests its life history is similar to other congeners. The restricted range of this species implies that it is microendemic, being possibly confined to theAntainambalana watershed. Mitochondrial and nuclear DNA variation show that its closest known relatives are Blommersia galani and B. dejongi, both of which also have restricted ranges on the east coast. A putative hybrid between a B. galani female and B.dejongi male with intermediate morphology was identified based on nuclear and mitochondrial DNA variation.
JULIO C. C. FERNANDEZSOLANGE PEIXINHOULISSES S. PINHEIROCARLA MENEGOLA...
17页
查看更多>>摘要：In this paper we describe three new species of Tetilla from stretches of the coast of Bahia, northeastern Brazil, all collected in shallow waters and soft bottoms. Tetilla pentatriaena sp. nov. is distinct from other species of the genus by the uniquepossession of five categories of triaenes: two of protriaenes and three of anatriaenes. Tetilla muricyi sp. nov. and Tetilla rodriguesi sp. nov. are the first species in the genus registered exclusively from mangrove ecosystems and are distinct from most species of Tetilla by their lack of microscleres. Tetilla muricyi sp. nov. differs from all species by its spiculation and by having a reticulate skeleton of secondary oxeas. Tetilla rodriguesi sp. nov. differs from other species without sig-maspires by the presence of three categories of oxeas, two of trichoidal protriaenes and one of exclusively rhizoidal anatriaenes. In addition to the three new species described here we also provided one identification key to the Tetilla species occurring in the Atlantic Ocean.
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