查看更多>>摘要：Recent sampling of the benthos has been undertaken around the Hakon Mosby Mud Volcanp (HMMV) at around 1280 m depth on the Norwegian-Barents-Spitsbergen continental margin and at two seep-sites further south on the Norwegian Margin, the Nyegga seep-site and the Storegga Slide, at about 730 m depth. The collected material included eleven species of tanaidomorph tanaidacean, ten of which (from eight genera) are analyzed herein. Four of these species, one each in the genera Pseudotanais, Cryptocopoides,Obesutanais, and Akanthophoreus, are new to science. Supplementary descriptions are given for two species originally discovered during the 19th century Ingolf expedition, Typhlotanais mixtus and Mero-monakantha irregularis. The genus Magotanais is synonymized with Cryptocopoides; the subfamily Akanthophoreinae, Sieg is restricted and raised to family-rank. The evolution of potentially endemic taxa at vent- and seep-sites is discussed.
查看更多>>摘要：Six new species of the genus Orchestina are described: O. aureola sp. nov., O. clavulata sp. nov., O. truncatula sp. nov., O. tubulata sp. nov., O. yinggezui sp. nov. and O. zhengi sp. nov. All species were collected on Hainan Island (China) by canopyfogging.
查看更多>>摘要：Symphurus maculopinnis n. sp., described on a single specimen (USNM 398820; 84.4 mm SL), was collected by a remotely operated vehicle (ROV) exploring a hydrothermal vent area located at 561 m on Volcano-19, Tonga Arc, West Pacific (24°48.439' S, 177°0.009' W). This new species is distinctive and readily diagnosed from congeners by the following combination of characters: 1-2-2-2-1 pattern of interdigitation of dorsal proximal pterygiophores and neural spines (ID pattern), 14 caudal-fin rays, 3+6 abdominal vertebrae, 49 total vertebrae, 89 scales in a longitudinal row, 92 dorsal-fin rays, 77 anal-fin rays, blunt squarish snout, thick blind-side lips with conspicuous plicae, and conspicuous ocellated (sometimes partially) spots on posterior dorsal and anal fins. Among Symphurus, only S. ocellatus von Bonde, collected at deepwater locations off East Africa, features a similar ID pattern, 14 caudal-fin rays and spots on the posterior dorsal and anal fins. Symphurus maculopinnis differs distinctly from S. ocellatus in its lower and non-overlapping meristic features (49 vs. 54-56 total vertebrae; 92 vs. 97-103 dorsal-fin rays; and 77 vs. 85-89 anal-fin rays), its squarish (vs. pointed) snout, and thick, plicated blind-side lower lip (vs. thin, non-plicated blind-side lower lip). Additional specimens (N= 56) of S. maculopinnis observed and filmed in situ near active vending sites located between ca. 433-561 m on Volcano-19 provide the basis for behavioral and ecological information recorded for the species. Videotapes reveal one individual of S. maculopinnis featuring reversed (dextral) asymmetry from that typical (sinistral) for members of the Cynoglossidae. Specimens with reversed asymmetry are relatively rare in this family and this S. maculopinnis represents only the second known reversed individual among the approximately 42 species of deep-sea (>200 m) Symphurus.
查看更多>>摘要：Confusion has surrounded the correct spelling of the species name of the labrid fish Cymolutes (=Coris) sandeyeri Hector 1884. In his original description, Hector (1884a) stated the specimen from Tiritiri Island was "collected by Mr. S. Sandeyer", a misspelling of the surname of F.S. (Andreas Fremming Stewart) Sandager, who was then Assistant Lighthouse Keeper at Tiritiri Matangi Island, Hauraki Gulf, New Zealand, from June 1881 to May 1883 (Phillips 2011), and after whom the species was named.
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