Leftvents are deep-sea anglerfish, who have the symbiotic bacteria and obligate parasitic males common to many of the other anglerfish.
The genus name Linophryne is Greek, and means “toad that fishes with a net”, and lucifer means, well, "Lucifer". It’s a devil-toad-fish with a net. The whole genus is sometimes called “netdevils”. They’re uncommon enough thatbasically the entire genus is known by that common name.
Proceedings of the General Meetings for Scientific Business of the Zoological Society of London. 1886.