Two new species of Naticidae （ Mollusca, Gastropoda） collected from the coast of China are described： Cryptonaitca huanghaien- s/s sp. nov. and Sinum vittatum sp. nov. The morphological characteristics between the ...Two new species of Naticidae （ Mollusca, Gastropoda） collected from the coast of China are described： Cryptonaitca huanghaien- s/s sp. nov. and Sinum vittatum sp. nov. The morphological characteristics between the new species were described and the related information was provided. The similarities and differences between the new species and related species were also compared and discussed. The new species Cryptonaitca huanghaiensis differed from Cryptonaitca hirasei and Cryptonaitca andoi in outer shape, operculum and radula. The new species Sinum vittatum is similar to Sinumjaponicum （Lischke, 1869）, but the shell of the former is flat-elliptical in shape, spire very small, slightly convex. While the latter is flat-globular in shape, apex light brown in color, without a brown band on the body whorl. The comparison results revealed that Cryptonaitca huanghaiensis and Sinum vittatum were two new species from the coast of China. Specimens studied were obtained from collections in the Marine Biological Museum, Chinese Academy of Sciences.展开更多
The marine environment provides a rich source of natural products with potential therapeutic application.This has resulted in an increased rate of pharmaceutical agents being discovered in marine animals,particularly ...The marine environment provides a rich source of natural products with potential therapeutic application.This has resulted in an increased rate of pharmaceutical agents being discovered in marine animals,particularly invertebrates.Our objective is to summarize the most promising compounds which have the best potential and may lead to use in clinical practice,show their biological activities and highlight the compounds currently being tested in clinical trials.In this paper,we focused on Bryozoa,Mollusca,Echinodermata and Urochordata.展开更多
Among small sized gastropods found in Aqaba (Jordan), Sansonia occurs relatively common with Sansoniacebuana which is recognized from the the fringing reef near the Marine Biological Stat...Among small sized gastropods found in Aqaba (Jordan), Sansonia occurs relatively common with Sansoniacebuana which is recognized from the the fringing reef near the Marine Biological Station at Aqaba, while Mecoliotia and Chrystella are rare. Mecoliotia aqabaensis n. sp and Chrystella shinaqi n. sp are described with the later resembling Chrystella finckhi. They are compared with other members of the Pick-worthiidae, of which a new species of Discrevina from Indonesia is described. A species of Aqabarella new genus resembles in shape of its teleoconch members of the Pickworthiidae but its protoconch is distinct in ornament of the larval shell and shape of the aperture and it is placed in it own family, Aqabarellidae. Aqabarella urdunensis is relatively more common than the rare Aqabarella pulchella. Similar larval shells are found in Vanikoridae, Planaxidae and Cerithiidae, those of Littorinidae and Rissoidae are more distinct and all of them differ from those of the Aqabarellidae, while some ancient small species from the Triassic tropical Tethys had a similar protoconch.展开更多
Three new species of Family Mitridae (Mollusca: Gastropoda) from the South China Sea are described in the present paper. They are Ziba aglais sp. nov. B. LI & S. ZHANG, Neocancilla daidaleosa sp. nov. B. LI & ...Three new species of Family Mitridae (Mollusca: Gastropoda) from the South China Sea are described in the present paper. They are Ziba aglais sp. nov. B. LI & S. ZHANG, Neocancilla daidaleosa sp. nov. B. LI & X. LI, and Mitra holkosa sp. nov. B. LI. Their systematic positions are also discussed.展开更多
研究于2008年12月至2009年10月按季度对大通湖水质及软体动物资源监测,并通过纵向比较,探讨了集约化养殖对大通湖水域环境及软体动物群落的影响,以期为其渔业可持续发展提供理论依据。结果显示,大通湖水质全年呈碱性(8.62±0.07),...研究于2008年12月至2009年10月按季度对大通湖水质及软体动物资源监测,并通过纵向比较,探讨了集约化养殖对大通湖水域环境及软体动物群落的影响,以期为其渔业可持续发展提供理论依据。结果显示,大通湖水质全年呈碱性(8.62±0.07),具有较高的还原性[(?88.40±9.10)mv],属富营养水体。软体动物共计5科15种,梨形环棱螺(Bellamya purificata)、河蚬(Corbicula fluminea)和圆顶珠蚌(Unio doug lasiae)是主要优势种。软体动物平均密度和生物量具有明显的时空差异,时间上呈现由春夏季到秋冬季逐渐升高的趋势,空间上整体呈现由东北向西南逐渐递减的趋势。典范对应分析表明氧化还原电位、pH、溶氧、水深、电导率和水温与大通湖软体动物时空变化的关系最显著。与1960年相比,大通湖水体碱性显著增强(7.0—7.5 vs 8.4—8.8),电导率增加了9倍(0.25—0.27 vs 2.17—2.56 mS/cm),环境类型由氧化型转变为还原型。湖区喜好水草(白旋螺、光亮隔扁螺、萝卜螺)与流水生境(德氏狭口螺、湖沼股蛤、橄榄蛏蚌)的物种消失,软体动物优势种群呈现由双壳类向腹足类演替的特征。生境破坏和过度捕捞是大通湖软体动物资源面临的最大威胁,也是湖区渔业可持续发展所面临的核心问题。展开更多
基金The National Natural Science Foundation of China under contract Nos KZCX2-YW-417 and 30470217.
文摘Two new species of Naticidae （ Mollusca, Gastropoda） collected from the coast of China are described： Cryptonaitca huanghaien- s/s sp. nov. and Sinum vittatum sp. nov. The morphological characteristics between the new species were described and the related information was provided. The similarities and differences between the new species and related species were also compared and discussed. The new species Cryptonaitca huanghaiensis differed from Cryptonaitca hirasei and Cryptonaitca andoi in outer shape, operculum and radula. The new species Sinum vittatum is similar to Sinumjaponicum （Lischke, 1869）, but the shell of the former is flat-elliptical in shape, spire very small, slightly convex. While the latter is flat-globular in shape, apex light brown in color, without a brown band on the body whorl. The comparison results revealed that Cryptonaitca huanghaiensis and Sinum vittatum were two new species from the coast of China. Specimens studied were obtained from collections in the Marine Biological Museum, Chinese Academy of Sciences.
文摘The marine environment provides a rich source of natural products with potential therapeutic application.This has resulted in an increased rate of pharmaceutical agents being discovered in marine animals,particularly invertebrates.Our objective is to summarize the most promising compounds which have the best potential and may lead to use in clinical practice,show their biological activities and highlight the compounds currently being tested in clinical trials.In this paper,we focused on Bryozoa,Mollusca,Echinodermata and Urochordata.
文摘Among small sized gastropods found in Aqaba (Jordan), Sansonia occurs relatively common with Sansoniacebuana which is recognized from the the fringing reef near the Marine Biological Station at Aqaba, while Mecoliotia and Chrystella are rare. Mecoliotia aqabaensis n. sp and Chrystella shinaqi n. sp are described with the later resembling Chrystella finckhi. They are compared with other members of the Pick-worthiidae, of which a new species of Discrevina from Indonesia is described. A species of Aqabarella new genus resembles in shape of its teleoconch members of the Pickworthiidae but its protoconch is distinct in ornament of the larval shell and shape of the aperture and it is placed in it own family, Aqabarellidae. Aqabarella urdunensis is relatively more common than the rare Aqabarella pulchella. Similar larval shells are found in Vanikoridae, Planaxidae and Cerithiidae, those of Littorinidae and Rissoidae are more distinct and all of them differ from those of the Aqabarellidae, while some ancient small species from the Triassic tropical Tethys had a similar protoconch.
基金The study supported by the Natural Science Foundation of China (39899400 and 40276044), project of Chinese Academy of Sciences (KSCX2-SW-101B) and IOCAS for innovation (L57022807).
文摘Three new species of Family Mitridae (Mollusca: Gastropoda) from the South China Sea are described in the present paper. They are Ziba aglais sp. nov. B. LI & S. ZHANG, Neocancilla daidaleosa sp. nov. B. LI & X. LI, and Mitra holkosa sp. nov. B. LI. Their systematic positions are also discussed.
文摘研究于2008年12月至2009年10月按季度对大通湖水质及软体动物资源监测,并通过纵向比较,探讨了集约化养殖对大通湖水域环境及软体动物群落的影响,以期为其渔业可持续发展提供理论依据。结果显示,大通湖水质全年呈碱性(8.62±0.07),具有较高的还原性[(?88.40±9.10)mv],属富营养水体。软体动物共计5科15种,梨形环棱螺(Bellamya purificata)、河蚬(Corbicula fluminea)和圆顶珠蚌(Unio doug lasiae)是主要优势种。软体动物平均密度和生物量具有明显的时空差异,时间上呈现由春夏季到秋冬季逐渐升高的趋势,空间上整体呈现由东北向西南逐渐递减的趋势。典范对应分析表明氧化还原电位、pH、溶氧、水深、电导率和水温与大通湖软体动物时空变化的关系最显著。与1960年相比,大通湖水体碱性显著增强(7.0—7.5 vs 8.4—8.8),电导率增加了9倍(0.25—0.27 vs 2.17—2.56 mS/cm),环境类型由氧化型转变为还原型。湖区喜好水草(白旋螺、光亮隔扁螺、萝卜螺)与流水生境(德氏狭口螺、湖沼股蛤、橄榄蛏蚌)的物种消失,软体动物优势种群呈现由双壳类向腹足类演替的特征。生境破坏和过度捕捞是大通湖软体动物资源面临的最大威胁,也是湖区渔业可持续发展所面临的核心问题。
