131 Length (pervalvar axis): μm to 1 mm (Cupp, 1943); 450-640 μm (Al-Yamani et al., 2019). Width (diameter, apical axis): 6-53 μm (Cupp, 1943); 35-70 μm (Hendey, 1964); 8-100 μm (Chin et al.,1965; Isamu, 1991); 4.5-190μm (Tomas et al.,1997); 9-104 μm (Guo et al., 2003); 45-50 μm (Al-Kandari et al., 2009); 35-48 μm (Al-Yamani et al., 2019). 粒徑 長(貫殼軸):最長可達1毫米(Cupp, 1943);450到640微米(Al-Yamani et al., 2019)。 寬(直徑,頂軸):6到53微米(Cupp,1943);35到70微米(Hendey, 1964);8到100 微米(金德祥等,1965;山路勇,1991);4.5到190微米(Thomas,1997);9到104 微米(郭玉潔等,2003);45到50微米(Al-Kandari et al., 2009);35到48微米(AlYamani et al., 2019) Synonyms 同種異名 Rhizosolenia calcar-avis Schultze 1858 Rhizosolenia calcar-avis var. cochlea (Brun) Ostenfeld 1902 Rhizosolenia cochlea Brun 1891
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