Grey cutthroat eel
Sulak, K. J. and Yu. N. Shcherbachev, 1997 [ref. 22986] Zoogeography and systematics of six deep-living genera of synaphobranchid eels, with a key to taxa and description of two new species of Ilyophis. Bulletin of Marine Science v. 60 (no. 3): 1158-1194.