Study on the delimitation of zoogeogrphical region in Hubei,on the basis of freshwater crabs Fauna

In the present paper the writers attempt to deal with the problem of the delimitation of the boundaries of the zoogeographical regions in Hubei on the basis of the freshwater crabs fauna.Among the 33 species of freshwater crabs listed,30 species(or 90.9%) belonged to the species entirely or mainly distributed in the Oriental region,1 species(3.0%) to those entirely or mainly distributed in the Palaearctic region,and 2 species (6.1%) to those distributed in both Oriental and Palaearctic regions.Based on the comparison with the freshwater crab fauna of adjacent provinces,including guizhou Jiangxi,Hunan and Henan,our research results show that The freshwater crab fauna of Hubei province should be included in the Oriental region.