Bibliography    A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Before 1880 | Databases / Unp. data

1. International Trust for Zoological Nomenclature, 1999. International Code of Zoological Nomenclature (4th edition). Natural History Museum, London, 306 pp.
2. Ishizuka, K., 1999. A review of the genus Pheretima s. lat. (Megascolecidae) from Japan. Edaphologia, 62 (1999), pp. 55–80.
3. Ishizuka, K., 2001. Taxonomic study of the genus Pheretima s. lat. (Oligochaeta, Megascolecidae) from Japan. Bull. Seikei Univ., 33 (2001), pp. 1–125.
4. Ishizuka, K., Azama, Y., Sasaki, T., 2000. Two new species of the genus Pheretima s. lat. (family Megascolecidae) from the Yambaru district, Okinawa island, Japan. Edaphologia, 65: 89-95.
5. Ismail, S.A., 1997. Vermicology, the biology of earthworms. Orient Longman, Hyderabad, 92 pp.
6. Ito, M.T., Yasuda, M., Yamada, F., 2011. Earthworm fauna (Annelida: Clitellata) of the Main Campus and Chiyoda

Experimental Station of Forestry and Forest Products Research Institute. Bulletin of FFPRI, 10, 4(421): 281-289.