97 Amphora coffeaformis 咖啡形雙眉藻 Phylum: Heterokontophyta 门：不等鞭毛門 Class: Bacillariophyceae 纲：羽紋硅藻綱 Order: Thalassiophysales 目：海泡藻目 Family: Catenulaceae 科：錐形藻科 Morphology Cells are narrow elliptical, with elongated, roughly rounded, and blunt ends. Valves are semi lunar in shape, with slightly concave ventral margin. 形態 細胞窄橢圓形，末端延長，鈍圓。殼面半月形，腹緣輕微內凹。 Ecology and distribution Amphora coffeaformis is widely distributed in freshwater, brackish water, and sea water. Cells are found in sediment or attach on the surface of macroalgae and intertidal rocks. 生態與分佈 咖啡形雙眉藻在淡水、半咸水以及海水都有分佈，在沉積物、海藻以及潮間帶岩石 上均有發現。 Size Length (apical axis): 20-46 μm (Chin et al., 1982); 14-55 μm (Archibald et al., 1984); 1046 μm (Cheng et al., 1993, 2013) Width (transapical axis): 6-8 μm (Chin et al., 1982); 3.5-7.3 μm (Archibald et al., 1984);
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