查看更多>>摘要：The updated and annotated checklist includes all literature records of foraminiferal species from the Eastern Adriatic coastal region and their geographic occurrences. A total of 599 recent (altogether 693 named and unidentified species) foraminiferalspecies were reported, classified into 232 genera according to the Lee et al (2000) and Loeblich and Tappan (1987) classification system. In the Northern Adriatic, 536 species grouped into 211 genera are recorded, in the Central Adriatic 153 genera and296 species are found, and in the Southern part, 272 species within 133 genera are reported. The number of lessepsian species colonizing the coasts is relatively low, implying that a) indigenous species are good competitors, and b) abiotic conditions like water temperature and substrate are unfavorable.
查看更多>>摘要：Mechkarska et al. (2011) recently provided an analysis of antimicrobial peptides in two species in the frog family Pipidae — Xenopus andrei and "Silurana paratropicalis". We provide a review of the species associated with the latter taxon name and argue that this is not a valid name. The species that Mecharksa et al. (2011) referred to as "Silurana paratropicalis" apparently was first mentioned by Graf & Fischberg (1986) as Xenopus "species nova VIT a tetraploid species with 40 chromosomes that wascollected from two sites in Cameroon (Longyi and Nkoemvone). Tymowska (1991) described and illustrated the karyotype for "Xenopus sp. nov. VII" and explicitly proposed that this species is closely related to the tetraploid X. epitropicalis and diploid X.tropicalis. Tymowska (1991) indicated that a description was in preparation, but no formal description was published subsequently. Two years later, three publications (Flajnik et al. 1993; Sato et al. 1993; Shum et al. 1993) used the name "Xenopus paratropicalis" for a tetraploid 40-chromosome species obtained from the Universite de Geneve, the same institution at which "Xenopus sp. nov. VII" was bred for work by Graf & Fischberg (1986) and Tymowska (1991). The following year, Herrmann (1994) also briefly mentioned "Silurana paratropicalis" as a "form assigned to epitropicalis" (our translation). To the best of our knowledge, all of these authors (Graf & Fischberg 1986; Tymowska 1991; Flajnik et al. 1993; Sato etal. 1993; Shum et al. 1993; Herrmann 1994) were referring to the same species bred in Geneve. Salamone (2006) provided a short synopsis of a graduate thesis detailing the description of "Silurana paratropicalis" and another species of Xenopus, but this note, published in a newsletter, does not contain a description; these descriptions remain unpublished. Herrmann (1994), Salamone (2006), and Mechkarska et al. (2011) refer "paratropicalis" to Silurana following Cannatella & Trueb (1988), though Pauly et al. (2009) recently suggested that recognizing Silurana as a genus distinct from Xenopus was a "mistaken" taxonomic decision. To our knowledge, Herrmann (1994), Salamone (2006), Mechkarska et al. (2011) are the only publications to mention "paratropicalis" since 1993.
ANTOINE FOUQUETBRICE R NOONANMICHEL BLANCVICTOR GOYANNES DILL ORRICO...
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查看更多>>摘要：Dendropsophus gaucheri is a recently described species which inhabits open areas of the eastern part of the Guiana Shield and is currently assigned to the D. parviceps species group based on the presence of a subocular cream spot. Herein we investigate its phylogenetic position including material from the type locality and newly documented populations from Suriname and Brazil based on mtDNA sequences. The species, as well as D. riveroi which is assigned to the D. minimus species group, were recoverednested within the D. microcephalus species group which implies the paraphyly of the three Dendropsophus species groups. Such result, along with other evidences, highlights the need for a thorough revision of the genus. The genetic distances among D. gaucheri samples studied are low confirming their conspecificity and suggesting recent connections among populations from open areas currently isolated by rainforest in the lowlands of the Guiana Shield.
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