Fragillaria pectinalis, xlii, 103.f
— trionodis, xlii, 103.
Frustulia, xliii, 326.
Gaillonella aurichalcea, xlii, 90.f
— distans, xlii, 91.f
— ferruginea, xlii, 93.
— moniliformis, xlii, 89.f
— sulcata, xlii, 91.f
— varians, xlii, 91.f
—, xlii, 92f; xlviii, 322.f