查看更多>>摘要：Mysid crustaceans of the genus Rhopalophthalmus Illig, 1906 (Crustacea: Mysida) are distributed in the eastern Atlantic through the Indo-West Pacific. In this paper, species of Rhopalophthalmus recorded from eastern Asian waters are reviewed on the basis of materials collected from south-eastern Asia to Japanese water. The taxonomic analysis led to the recognition of six species from the region, including three new species. Rhopalophthalmus phyllodus Murano, 1988 was regarded as a junior synonym of R. egregius Hansen, 1910. The identity of R. macropsis Pillai, 1964 has been controversial, and in this study, we recognised it as valid. However, specimens with remarkably stout and few spinose setae on the telson, often reported as either R. macropsis or R. longipes Ii, 1964 were determined to be a new species, R. armiger. In addition, two new species, R. hastatus and R. philippinensis, were reported from south-eastern Asian waters. A key to the 25 currently recognised world species is provided.
查看更多>>摘要：Mysid crustaceans of the genus Rhopalophthalmus Illig, 1906 (Crustacea: Mysida) are distributed in the eastern Atlantic through the Indo-West Pacific. In this paper, species of Rhopalophthalmus recorded from eastern Asian waters are reviewed on the basis of materials collected from south-eastern Asia to Japanese water. The taxonomic analysis led to the recognition of six species from the region, including three new species. Rhopalophthalmus phyllodus Murano, 1988 was regarded as a junior synonym of R. egregius Hansen, 1910. The identity of R. macropsis Pillai, 1964 has been controversial, and in this study, we recognised it as valid. However, specimens with remarkably stout and few spinose setae on the telson, often reported as either R. macropsis or R. longipes Ii, 1964 were determined to be a new species, R. armiger. In addition, two new species, R. hastatus and R. philippinensis, were reported from south-eastern Asian waters. A key to the 25 currently recognised world species is provided.
查看更多>>摘要：We studied the holotype and only known specimen of the rodent Calomys anoblepas Winge, 1887, an enigmatic and pu-tatively extinct pentalophodont sigmodontine found in the limestone caves of Lagoa Santa, Minas Gerais, Brazil. Comparisons with other sigmodontines suggest that anoblepas can be allocated under the genus Juliomys Gonzalez, 2000 and probably represents an extinct form within it. Cranial characters that support our generic hypothesis include the combination of an interlacrymal depression behind nasals, anterior portion of interfrontal suture with incomplete fusion, zygomatic plate nearly vertical with almost nonexistent upper free border, anterior border of the mesopterygoid fossa located at the level of third molar hypoflexus, and brachyodont molars with crested coronal topography. Juliomys includes three living species of sylvan and arboreal mice endemic of the Atlantic forests. This genus is absent in contemporaneous rodent assemblage from Lagoa Santa area, suggesting different environmental conditions during Pleistocene deposition times.
查看更多>>摘要：We studied the holotype and only known specimen of the rodent Calomys anoblepas Winge, 1887, an enigmatic and pu-tatively extinct pentalophodont sigmodontine found in the limestone caves of Lagoa Santa, Minas Gerais, Brazil. Comparisons with other sigmodontines suggest that anoblepas can be allocated under the genus Juliomys Gonzalez, 2000 and probably represents an extinct form within it. Cranial characters that support our generic hypothesis include the combination of an interlacrymal depression behind nasals, anterior portion of interfrontal suture with incomplete fusion, zygomatic plate nearly vertical with almost nonexistent upper free border, anterior border of the mesopterygoid fossa located at the level of third molar hypoflexus, and brachyodont molars with crested coronal topography. Juliomys includes three living species of sylvan and arboreal mice endemic of the Atlantic forests. This genus is absent in contemporaneous rodent assemblage from Lagoa Santa area, suggesting different environmental conditions during Pleistocene deposition times.
查看更多>>摘要：The Narrative of the Challenger cruise was published in 1885 and contained valid descriptions of crustacean decapod taxa. While C.S. Bate (Challenger Macrura) mentioned the discovery of new taxa without making them valid, J.R. Henderson (Anomura) andE.J. Miers (Brachyura) provided short descriptions including figures that made several new names available. With a few exceptions, these valid scientific names together with their date of availability have been overlooked by almost all subsequent taxonomic studies. Consequently the decapod taxa named in the Challenger Narrative are listed and the implications for nomenclature in each case are discussed.
查看更多>>摘要：The Narrative of the Challenger cruise was published in 1885 and contained valid descriptions of crustacean decapod taxa. While C.S. Bate (Challenger Macrura) mentioned the discovery of new taxa without making them valid, J.R. Henderson (Anomura) andE.J. Miers (Brachyura) provided short descriptions including figures that made several new names available. With a few exceptions, these valid scientific names together with their date of availability have been overlooked by almost all subsequent taxonomic studies. Consequently the decapod taxa named in the Challenger Narrative are listed and the implications for nomenclature in each case are discussed.
查看更多>>摘要：Pacifantistea ovtchinnikovi gen. n. & sp. n. belonging to Hahniinae is described on the basis of males and females from Moneron Island, Kuril Islands, the southern part of Maritime Province, the southern part of Kamchatka and Hokkaido. P. ovtchinnikovi sp. n. is the largest species among Hahniinae. The new species is compared in detail with other large-sized Hahniinae: Neoantistea magna (Nearctic) and N. quelpartensis (SE Palaearctic). The poorly documented affinities of these additional two speciesare discussed and illustrated.
查看更多>>摘要：Pacifantistea ovtchinnikovi gen. n. & sp. n. belonging to Hahniinae is described on the basis of males and females from Moneron Island, Kuril Islands, the southern part of Maritime Province, the southern part of Kamchatka and Hokkaido. P. ovtchinnikovi sp. n. is the largest species among Hahniinae. The new species is compared in detail with other large-sized Hahniinae: Neoantistea magna (Nearctic) and N. quelpartensis (SE Palaearctic). The poorly documented affinities of these additional two speciesare discussed and illustrated.
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