Table 1 in Marine benthic diatoms of Guam: new records, Dictyoneis apapae sp. nov., and updates to the checklist

Table 1. Comparison of Berkeleya populations
Characterhyalina - Togohyalina - So. Calcf. hyalina - Guammicansfragilislength30–3525–4045–5170–8540–90width55-764–54-6valve shapelanceolatelanceolatelanceolate?+/- linearlinear to linear-lanceolateapex shapeslightly capitatecapitatebroadly roundedobtuseobtusestria density in 10 µm>4032-383726-28ca. 40wide pores on one side of axisyesyesyesyesyesdistance between central endings, µm53-57.1–8.610–204-5

表1 柏氏藻属（Berkeleya）种群比较
| 性状 | hyalina | Togohyalina | So. Calcf. hyalina | Guammicans fragilis | 第五类群 |
| --- | --- | --- | --- | --- | --- |
| 体长（μm） | 30–35 | 25–40 | 45–51 | 70–85 | 40–90 |
| 体宽（μm） | 55–76 | 4–54 | 6 | （原文此处数值排版存在格式缺失，暂保留原文内容） | — |
| 壳面形状 | 披针形 | 披针形 | 披针形？ | 近线性 | 线性至线状披针形 |
| 壳端形状 | 稍具头状 | 头状 | 宽圆形 | 钝形 | 钝形 |
| 10 μm内条纹密度 | >40 | 32–38 | 37 | 26–28 | 约40 |
| 壳轴单侧具宽孔 | 是 | 是 | 是 | 是 | 是 |
| 中央末端间距（μm） | 53–57 | 1.0–8.6 | 10–20 | 4–5 | — |