Genus: Google Image Search
H. amphioxys 46 x 8 μm Iruma river Kawagoe Saitama, 2004 H. amphioxys 75 x 16 μm Riverside green l. Sawara Chiba, 2004 H. amphioxys or Nitzschia ?? 70 x 9.5 μm Senuki Nasu Tochigi, 2004
