查看更多>>摘要：In the Intemational Year of Biodiversity (2010), Zootaxa published 1,582 papers (including 92 monographs) in 405 issues, with a total of 32,330 pages. These papers included descriptions of 3,951 new taxa, of which 3,664 are of the species-group, 268 of the genus-group and 19 of the family-group. It is estimated that the total new animal species described in 2010 is most likely to be between 15,000 and 20,000, and Zootaxa has thus contributed 18 to 24% of the total.
查看更多>>摘要：In the Intemational Year of Biodiversity (2010), Zootaxa published 1,582 papers (including 92 monographs) in 405 issues, with a total of 32,330 pages. These papers included descriptions of 3,951 new taxa, of which 3,664 are of the species-group, 268 of the genus-group and 19 of the family-group. It is estimated that the total new animal species described in 2010 is most likely to be between 15,000 and 20,000, and Zootaxa has thus contributed 18 to 24% of the total.
ALEXANDER V. ERESKOVSKYDENNIS V. LAVROVNICOLE BOURY-ESNAULTJEAN VACELET...
27页
查看更多>>摘要：Halisarca harmelini sp. nov. is described from the northwestem Mediterranean Sea at depths between 15-65 m from cor-alligenous rocks. The new species occurs as thin sheets only on the bryozoan Smittina cervicornis. Morphologically, it is characterizedby its thin layer architecture, skin-like, lusterless and smooth surface, a soft, very delicate and easily torn texture, and pale-yellow colour. At the cytological level H. harmelini is characterized by a complex of cells with inclusions: sphemlous, vacuolar, granular, microgranular and rhabdiferous cells. The new species is clearly different in cell and endobiotic bacteria content and in extemal morphology from all previously described species of Halisarca. In addition to the description of the new species, we have conducted a thorough ultrastmctural investigation and re-described the type species Halisarca dujardini Johnston, 1842 using specimens from different region of the North Atlantic, Arctic and North Pacific. To investigate the relationshipsbetween H. harmelini and H dujardini on the molecular level, we determined the complete mitochondrial DNA (mtDNA) sequences of the new species of Halisarca and compared it with that of H. dujardini. The two mitochondrial genomes are identical in gene content and gene arrangement but differ in size by -1,300 bp (6.8%). The overall genetic distance between coding sequences is 0.1, much greater than what has been previously reported for individual species of non-bilaterian animals. The latter observation supports the new species status ofH. harmelini.
ALEXANDER V. ERESKOVSKYDENNIS V. LAVROVNICOLE BOURY-ESNAULTJEAN VACELET...
27页
查看更多>>摘要：Halisarca harmelini sp. nov. is described from the northwestem Mediterranean Sea at depths between 15-65 m from cor-alligenous rocks. The new species occurs as thin sheets only on the bryozoan Smittina cervicornis. Morphologically, it is characterizedby its thin layer architecture, skin-like, lusterless and smooth surface, a soft, very delicate and easily torn texture, and pale-yellow colour. At the cytological level H. harmelini is characterized by a complex of cells with inclusions: sphemlous, vacuolar, granular, microgranular and rhabdiferous cells. The new species is clearly different in cell and endobiotic bacteria content and in extemal morphology from all previously described species of Halisarca. In addition to the description of the new species, we have conducted a thorough ultrastmctural investigation and re-described the type species Halisarca dujardini Johnston, 1842 using specimens from different region of the North Atlantic, Arctic and North Pacific. To investigate the relationshipsbetween H. harmelini and H dujardini on the molecular level, we determined the complete mitochondrial DNA (mtDNA) sequences of the new species of Halisarca and compared it with that of H. dujardini. The two mitochondrial genomes are identical in gene content and gene arrangement but differ in size by -1,300 bp (6.8%). The overall genetic distance between coding sequences is 0.1, much greater than what has been previously reported for individual species of non-bilaterian animals. The latter observation supports the new species status ofH. harmelini.
查看更多>>摘要：Only one species of hippolytid shrimp, namQly Hippolyte commensalis Kemp, 1925, was previously known to be associated with alcyonacean soft corals (Octocorallia, Alcyonacea) in the Indo-West Pacific. Recent collections revealed that at least three distinct hippolytid species are associated with alcyonacean soft corals. Moreover, these alcyonacean-associated hippolytids differ considerably from all other species of the genus Hippolyte Leach, 1814 in having a smooth rostmm bearing a single subapical ventral tooth, reduced styliform incisor process of the mandible, the basal antennular segment without ventromedial tooth, and the ambulatory pereiopods lacking or with only relatively small distoventral spines. A new genus, Alcyonohippolyte gen. nov., isthus established for Hippolyte commensalis Kemp, 1925 and two new species. Alcyonohippolyte dossena sp. nov. (the type species of the new genus) mainly differs from the congeners in having a humpbacked carapace. Alcyonohippolyte maculata sp. nov. closelyresembles A. commensalis but clearly differs in having a furry carapace and distinct coloration, as well as in association with different alcyonacean host. An identification key is provided as well as information on the live coloration and host for allspecies of Alcyonohippolyte gen. nov.
查看更多>>摘要：Only one species of hippolytid shrimp, namQly Hippolyte commensalis Kemp, 1925, was previously known to be associated with alcyonacean soft corals (Octocorallia, Alcyonacea) in the Indo-West Pacific. Recent collections revealed that at least three distinct hippolytid species are associated with alcyonacean soft corals. Moreover, these alcyonacean-associated hippolytids differ considerably from all other species of the genus Hippolyte Leach, 1814 in having a smooth rostmm bearing a single subapical ventral tooth, reduced styliform incisor process of the mandible, the basal antennular segment without ventromedial tooth, and the ambulatory pereiopods lacking or with only relatively small distoventral spines. A new genus, Alcyonohippolyte gen. nov., isthus established for Hippolyte commensalis Kemp, 1925 and two new species. Alcyonohippolyte dossena sp. nov. (the type species of the new genus) mainly differs from the congeners in having a humpbacked carapace. Alcyonohippolyte maculata sp. nov. closelyresembles A. commensalis but clearly differs in having a furry carapace and distinct coloration, as well as in association with different alcyonacean host. An identification key is provided as well as information on the live coloration and host for allspecies of Alcyonohippolyte gen. nov.
查看更多>>摘要：Paretroplus loisellei, a new species of etropline cichlid from Madagascar, is described from the middle to lower reaches of the Mahanara River, located to the north of the Masoala Peninsula in northeastem Madagascar. The new species is recovered within the "Paretroplus damii clade" on the basis of several apomorphic anatomical features, including the presence of a triangular, black or dark gray, pectoral-axil patch, chest scales that are greatly reduced in size and highly embedded, and flank scales in which the posterior field is thin and unossified. The new species is distinguished from its sister taxon, P. damii, by a more or less horizontal profile extending from the anterior margin of the lower jaw to the ven-troposterior margin of the suspensorium (vs. strongly rounded and convex), horizontally oriented oral jaws with fleshy lips (vs. oblique and thin), tricuspid symphyseal teeth in the upper jaw with distinct and sharp lateral cusps, a much darker overall pigmentation pattem, and distinctivebright golden breeding coloration (vs. brick red).
查看更多>>摘要：Paretroplus loisellei, a new species of etropline cichlid from Madagascar, is described from the middle to lower reaches of the Mahanara River, located to the north of the Masoala Peninsula in northeastem Madagascar. The new species is recovered within the "Paretroplus damii clade" on the basis of several apomorphic anatomical features, including the presence of a triangular, black or dark gray, pectoral-axil patch, chest scales that are greatly reduced in size and highly embedded, and flank scales in which the posterior field is thin and unossified. The new species is distinguished from its sister taxon, P. damii, by a more or less horizontal profile extending from the anterior margin of the lower jaw to the ven-troposterior margin of the suspensorium (vs. strongly rounded and convex), horizontally oriented oral jaws with fleshy lips (vs. oblique and thin), tricuspid symphyseal teeth in the upper jaw with distinct and sharp lateral cusps, a much darker overall pigmentation pattem, and distinctivebright golden breeding coloration (vs. brick red).
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