哈德掌狀藻PalmeriahardmanianaGreville,1865(圖34)abcd圖34哈德掌狀藻PalmeriahardmanianaGreville,1865a.殼面觀(valveview);b,c.環(huán)面觀(girdleview);d.殼面中央花紋(centerareolaofvalve)同種異名:哈氏半盤藻Hemidiscushardmannianus(Greville)Mann,1907藻體細胞近半球形,殼面半...[繼續(xù)閱讀]

    楔形半盤藻Hemidiscuscuneiformisvar.cuneiformisWallich,1860(圖35)ab圖35楔形半盤藻Hemidiscuscuneiformisvar.cuneiformisWallich,1860a,b.殼面觀(valveview)本種與哈氏半盤藻(HemidiscushardmannianusMann)相似,其區(qū)別在于本種殼面腹側(cè)中部微凸。暖海浮游性種類。中國東...[繼續(xù)閱讀]

    六角輻裥藻ActinoptychushexagonusGrunow,1874(圖36)圖36六角輻裥藻ActinoptychushexagonusGrunow,1874殼面觀(valveview)藻體細胞殼面正六邊形,中央無紋區(qū)亦呈正六邊形。世界罕見種。中國南海瓊東海域有分布。作者秋季于東沙群島北部海域曾找到少量...[繼續(xù)閱讀]

    大星芒藻AsterolampravanheurckiiBrun,1891(圖39)abcd圖39大星芒藻AsterolampravanheurckiiBrun,1891a～d.殼面觀(valveview)同種異名:AsterolampramarylandicaEhrenberg,1844藻體細胞殼面圓,中央透明區(qū)小,寬度為細胞直徑的1/6～1/5。有7條等粗的透明放射條紋。色素體...[繼續(xù)閱讀]

    粗星臍藻AsteromphalusrubustusCastracane,1875(圖41)ab圖41粗星臍藻AsteromphalusrubustusCastracane,1875a,b.殼面觀(valveview)藻體殼面圓形至橢圓形,中央星臍區(qū)較大,約為殼面直徑的1/2,殼面有8～9粗無紋區(qū)和1條細無紋區(qū)。廣溫性底棲種,偶而營浮游生活。...[繼續(xù)閱讀]

    細長列海鏈藻Thalassiosiraleptopus(Grun)HasleetG.Fryxell,1977(圖45)abc圖45細長列海鏈藻Thalassiosiraleptopus(Grun)HasleetG.Fryxell,1977a～c.殼面觀(valveview)同種異名:線形圓篩藻CoscinodiscuslineatusEhrenberg,1839;CoscinodiscusleptopusGrunow,inVanHeurch,1883藻體細胞殼面圓...[繼續(xù)閱讀]

    篩鏈藻Coscinosirapolychorda(Gran,1897)Gran,1900(圖52)ab圖52篩鏈藻Coscinosirapolychorda(Gran,1897)Gran,1900a,b.細胞鏈環(huán)面觀(chainsingirdleview)藻體相鄰細胞通過多條長膠質(zhì)線連接成群體,色素體小盤狀,多數(shù)。北溫帶海生種。本種分布廣但數(shù)量極少。中國青...[繼續(xù)閱讀]

    矮小短棘藻Detonulapumila(Castracane)Gran,1900(圖53)abc圖53矮小短棘藻Detonulapumila(Castracane)Gran,1900a～c.細胞鏈環(huán)面觀(chainsingirdleview)同種異名:優(yōu)美旭氏藻Schr⍥derelladelicatulaf.delicatula(Peragallo)Pavillard,1913藻體細胞長圓柱形,相鄰細胞通過殼緣一...[繼續(xù)閱讀]

    環(huán)紋婁氏藻LauderiaannulataCleve,1873(圖54)ab圖54環(huán)紋婁氏藻LauderiaannulataCleve,1873a.細胞分裂(celldivisioningirdleview);b.環(huán)面觀(girdleview)同種異名:北方婁氏藻LauderiaborealisGran,1900環(huán)紋婁氏藻又稱環(huán)紋勞德藻、北方勞德藻、北方柱鏈藻。藻體細胞短...[繼續(xù)閱讀]

    優(yōu)美旭氏藻矮小變型Schr⍥derelladelicatulaf.schroderi(Bergon)Sournia,1968(圖55)abcdabc圖55優(yōu)美旭氏藻矮小變型Schr⍥derelladelicatulaf.schr⍥deri(Bergon)Sournia,1968a,b,d,g.細胞鏈環(huán)面觀(chainsingirdleview);c.示復(fù)大孢子(showingtheauxospore);e,f.細胞分裂(c...[繼續(xù)閱讀]