Abstract

Summary Tobriloides sinensis sp. n. is described from Shanxi province, China. It is characterised by relatively long body (1620-1935 m), two subventral teeth posterior to dorsal tooth, a short pharynx (b = 4.2-5.0), cardia three times longer than wide (91-98 μm long and 30-37 μm wide), female reproductive system amphidelphic, the vulva situated slightly posterior to mid-body (V = 59.0-69.9), and the tail relatively short (c = 8.4-9.7 and c′ = 4.6-5.7). The phylogenetic relationships of the new species were analysed using data from the near full length small subunit (SSU) and D2-D3 segments of large subunit (LSU) of rRNA genes. The status of T. sinensis sp. n. is discussed based on both morphological and molecular characteristics.

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