查看更多>>摘要：In response to a clear gap in knowledge on the biodiversity of sessile Gnesiotrocha rotifers at both global as well as regional Southeast Asian scales, we performed a study of free-living colonial and epiphytic rotifers attached to fifteen aquatic plant species in Thale Noi Lake, the first Ramsar site in Thailand. We identified 44 different taxa of sessile rotifers, including thirty-nine fixosessile species and three planktonic colonial species. This corresponds with about 40 % of the global sessilerotifer diversity, and is the highest alpha-diversity of the group ever recorded from a single lake. The record further includes a new genus, Lacinularoides n. gen., containing a single species L. coloniensis (Colledge, 1918) n. comb., which is redescribed, and several possibly new species, one of which, Ptygura thalenoiensis n. spec, is formally described here. Ptygura noodti (Koste, 1972) n. comb, is relocated from Floscularia, based on observations of living specimens of this species, formerly knownonly from preserved, contracted specimens from the Amazon region. In addition, ten of the species recorded are added to the fauna of the Oriental region, twenty-seven are new to Thailand.
查看更多>>摘要：Within the framework of a DNA barcoding project on tardigrade species, a study was carried out on Macrobiotus hufelandi CA.S. Schultze 1834, the first formally described tardigrade species. We used samples collected from the type locality and additional material from other European sites containing species of the "M hufelandi group". The study was performed by integrating morphological, karyological and molecular (mt-DNA coxl) information and comparing these data with morphological data from the typematerial. Several species from this group were found in the type locality of M. hufelandi (near Freiburg, Black Forest, Germany) and these were all barcoded. One was M. hufelandi, the other two were: Macrobiotus sandrae Bertolani & Rebecchi 1993 (originally described from the same locality), and Macrobiotus vladimiri Bertolani, Biserov, Rebecchi & Cesari in press (type locality Andalo, Italy), all with interspecific genetic distances of more than 19%. A fourth cryptic species, which had the same morphology as M. hufelandi but a genetic distance of 6.7%, was not described as a new taxon but named M. cf. hufelandi sp.l for this study. Macrobiotus sandrae and M. vladimiri were also present (and barcoded) in Italy (Alps). Additional individuals (animals and eggs) were also found, and barcoded, in Italy (Apennines) and Switzerland that belonged to the haplogroup Macrobiotus cf. hufelandi sp. 1. These data together with other recent studies on tardigrade DNA barcoding represent a starting point for furtherstudies on tardigrade bioge-ography, phylogeography and diversity.
FRANCISCO FERRAGUTGILBERTO JOSE de MORAESDENISE NAVIA
17页
查看更多>>摘要：The phytoseiid mites of the Dominican Republic are virtually unknown. In a survey conducted in areas of natural vegetation of that country, 23 species were collected, two of which, Phytoseius dominicensis Ferragut & Moraes sp. nov. and Typhloseiopsisadventitius Ferragut & Moraes sp. nov., are new to science. We report the species found in that survey, describe the two new species, and provide complementary morphological information about other species. To accommodate the new Typhloseiopsis De Leon species, a redefinition of Typhloseiopsis is proposed. A key for the separation of the species in this genus is provided.
查看更多>>摘要：Three species are recognized in the Eviota nigriventris complex, two of them new. Eviota nigriventris Giltay is a species with a red ventral band, edged dorsally with a narrow white line, the ventral band ending in an asymmetrical black mark at the caudal-fin base; E. dorsopurpurea n. sp. is a species with a purple back and head and a black ventral band ending in a semi-circular spot; and E. dorsogilva n. sp. is a species with a black to dark reddish ventral band ending in a semicircular spot and hasa cream-colored back. Eviota dorsogilva and E. dorsopurpurea also differ in counts, pectoral-fin base coloration and eye size.
DIEGO JOSE SANTANADANIEL OLIVEIRA MESQUITAADRIAN ANTONIO GARDA
2页
查看更多>>摘要：The Dendropsophus decipiens clade is part of the Dendropsophus microcephalus group sensu Faivovich et al. (2005). As far as known, the clade is currently composed of four related species (D. decipiens, D. berthalutzae, D. haddadi, and D. oliveirai) distributed in eastern Brazil, all of which deposit eggs on leaves overhanging water bodies (Faivovich et al. 2005). Dendropsophus oliveirai is a typical species of open areas in the Caatinga and Atlantic Forest of northeastern Brazil (Bastos and Skuk, 2004; Santana et al. 2008).
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