Myrophis cheni Chen & Weng, 1967 Neenchelys retropinna Smith & Böhlke, 1983[1] Neenchelys cheni is an eel in the family Ophichthidae (worm/snake eels).

[2] It was described by Johnson T. F. Chen and Herman Ting-Chen Weng in 1967, originally under the genus Myrophis.

[3][1] It is a marine, temperate water-dwelling eel which is known from Taiwan, in the northwestern Pacific Ocean.

Males can reach a maximum standard length of 35 centimetres (14 in).

[2] The species epithet "cheni" refers to Tung-Pai Chen.