Revision of the Deep-Sea Anglerfish Genus Acentrophryne Regan (Lophiiformes: Ceratioidei: Linophrynidae), with the Description of a New Species from off Peru
The deep-sea ceratioid anglerfish genus Acentrophryne is revised on the basis of all known material. Two species are recognized: the type species Acentrophryne longidens, represented by two specimens collected in the Gulf of Panama and from off the Pacific coast of Costa Rica and a new species described here on the basis of three specimens, all from off Peru. The new species differs from A. longidens in having a much longer distal escal appendage, a longer illicium, a narrower head, and fewer pectoral-fin rays. Diagnoses and descriptions are given for all taxa and a key to the species is provided.Abstract

Acentrophryne dolichonema n. sp., holotype, HUMZ 175257, 105 mm SL

Acentrophryne longidens, holotype, ZMUC P921981, 50 mm SL. Drawing by R. Nielsen
Contributor Notes
(TWP) School of Aquatic and Fishery Sciences, College of Ocean and Fishery Sciences, University of Washington, Box 355020, Seattle, Washington 98195–5020; and (MS) Laboratory of Marine Biodiversity, Graduate school of Fisheries Sciences, Hokkaido University, 3–1–1 Minato-cho, Hakodate, Hokkaido 041–8611, Japan. (TWP) twp@u.washington.edu, and (MS) mitujin@fish.hokudai.ac.jp