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Issue: Vol. 2680 No. 1: 18 Nov. 2010
Type: Articles
Published: 2010-11-18
DOI: 10.11646/zootaxa.2680.1.2
Page range: 26–32
Abstract views: 48
PDF downloaded: 1

Three new species of earthworms belonging to the genus Amynthas (Oligochaeta: Megascolecidae) from Hainan Island, China

School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai, China
School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai, China
School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai, China
Annelida earthworms Oligochaeta Megascolecidae Amynthas new species Hainan China

Abstract

This paper describes three new species of earthworms from Hainan Island, China: Amynthas trapezoides sp. nov., Amynthas conchipapillatus sp. nov. and Amynthas dongfangensis sp. nov. Amynthas trapezoides has no pigment, and has two pairs of spermathecal pores in 6/7 and 7/8 arranged trapezoidally near the mid-ventral line, a complicated glandular region on ventral side of 1/2XVII–1/4XIX, developed prostates and repeatedly curved prostatic ducts close to ventral midline. Amynthas conchipapillatus sp. nov. has no pigment, and has a pair of large convex smooth shellfish-like papillae in male pore region, only one pair of spermathecal pores in 5/6 and undeveloped thin prostates which closely adherent to the body wall. Amynthas dongfangensis sp. nov. has a pair of male pores on the centre of a flat-topped conical protuberance surrounded by three to five circular folds, and five pairs of spermathecal pores in 4/5–8/9.

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