Chlopsis longidens is an eel in the family Chlopsidae.

[2] It was described by Samuel Garman in 1899, originally under the genus Atopichthys.

[3] It is known from a single leptocephalus specimen collected from between Ecuador and the Galapagos Islands, in the central eastern Pacific Ocean.

the species is known to dwell in a tropical, marine climate at a maximum depth of 3,184 m.[2] The specimen may possibly be a larval bicolor false moray (Chlopsis bicollaris).

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