Four new earthworm species of the genera Amynthas and Metaphire (Oligochaeta Megascolecidae) from Hunan and Anhui provinces China

摘要

This paper describes four new species earthworms from Hunan and Anhui provinces, China, Amynthasxiangtanensis Qiu & Jin, sp. nov., Amynthastaoyuanensis Qiu & Jin, sp. nov., Amynthasxuanchengensis Jin & Li, sp. nov. and Metaphiredonganensis Jin & Jiang, sp. nov.Amynthasxiangtanensissp. nov., and A.taoyuanensissp. nov. belong to the Amynthascorticis group. Both have four pairs of intersegmental spermathecal pores in 5/6–8/9; male pores in segment XVIII, separated by 1/3 of body circumference, each on top of a slightly raised porophore, surrounded by several tiny genital papillae. Amynthastaoyuanensissp. nov. prostate glands are degenerated. Amynthasxuanchengensissp. nov. belongs to the Amynthasmorrisi group, it has two pairs of spermathecal pores in 5/6 and 6/7; male pores in XVIII, separated by 1/3 of body circumference, each on top of a slightly raised, circular porophore. Metaphiredonganensissp. nov. belongs to the Metaphirehoulleti group. It has three pairs of spermathecal pores in 6/7–8/9; male pores in XVIII, separated by 1/3 of body circumference, each on the bottom center of the longitudinal copulatory chamber.