| 1 |   | Metacystis sp., --- by Y. Tsukii at Lab. of Biol., Hosei Univ. | 
| 2 |   | Metacystis sp., --- by Y. Tsukii at Lab. of Biol., Hosei Univ. | 
| 3 |   | Vasicola sp., --- by Y. Tsukii at Lab. of Biol., Hosei Univ. | 
| 4 |   | Vasicola sp., --- by Y. Tsukii at Lab. of Biol., Hosei Univ. |