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  3. Pyromaia tuberculata

Pyromaia tuberculata

Basic information
Scientific name Pyromaia tuberculata (No picture)
Common names tuberculate pear crab
Higher taxon Inachoididae, Decapoda, Malacostraca, Arthropoda
Natural range E Pacific. Coast of California to Columbia.
Habitat Bottom of inner bay.
Invasion information
Range in Japan Sendai Bay, Tokyo Bay, Sagami Bay, Lake Hamana Bay, Ise Bay, coast of Shima Peninsula, Osaka Bay, Seto Inland Sea, Yuya Bay, and Hakata Bay. Range in Japan
Origin N American coast
Date 1960s
Route Transported with ballast water.
Impact Prey on small benthos. Ecological impact of this species seems not so large.
Regulation in Japan
Introduced range in other countries Coast of South Korea and S Atlantic coast of Brazil and Argentine.
Reference Notes
  • Furota (1988) The ecology of the introduced spider crab Pyromaia tuberculata in an organically polluted bay (Preliminary report). Bull. Jpn. Assoc. Benthol. 33/34:79-89 (in Jpn with English abstract)
  • Furota & Kose (1988) Distribution of the introduced spider crab, Pyromaia tuberculata, along the coast of Japan. Bull. Jpn. Assoc. Benthol. 33/34:75-78 (in Jpn with English abstract)
  • Ecol Soc Japan (ed) (2002) Handbook of Alien Species in Japan. Chijin-Shokan. (in Jpn)
  • Otani (2004) Introduced marine organisms in Japanese coastal waters, and the processes involved in their entry. Japanese Journal of Benthology. 59:45-57 (in Jpn with English abstract)
  • etc.