[Chen, Jing] Zao Zhuang Univ, Coll Life & Sci, Zaozhuang, Shandong, Peoples R China
; [Xie, Zhicai] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan, Hubei Province, Peoples R China
Science & Technology
; Life Sciences & Biomedicine
Life Sciences & Biomedicine - Other Topics
A new enchytraeid species, Mesenchytraeus asymmetriauritus sp. nov., collected from terrestrial habitats of Changbai Mountain in the northeast China, is described. It is characterized by the dorsal vessel originating in XV-XVII, four pairs of preclitellar nephridia in 6/7-9/10, spermathecae attached to oesophagus in segment V and each possessing three or four ear-shaped diverticula of different size, one pair of asymmetrical sperm sacs occupying X-XVII and containing bulk of naked sperm bundles, atrium cylindrical with 4 prostate-like glands and distinct from vas deferens, and well-developed egg sac extending to XVI-XVII.