Two new South Pacific fishes of the genus Ebinania and contributions to the systematics of Psychrolutidae (Scorpaeniformes)

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Abstract
Two new species of Psychrolutidae from the South Pacific are described: E. macquariensis sp. nov. and E. malacocephala sp. nov. Both species are known only from the holotypes, which are deposited in the Natural History Museum Los Angeles County [California, USA]. The Psychrolutidae are redefined, the systematics of the family and of some of its species are discussed, and a preliminary classification of the family based on a study of 15 spp., emphasizing the arches of bone over the lateral line system of the head, is presented. The genus Cottunculus is polyphyletic and should be limited to the hard-headed members, C. microps, C. sadko, C. granulosus and C. thompsoni. The soft-headed members, C. brephocephalus of Japan and C. costaecanarie from western Africa (which is recognized as a valid species and studied from new material and the holotype), are placed in the genus Ebinania. Two lineages of psychrolutids are provisionally recognized as follows: the hard-headed forms (using adult material) of the subfamily Cottunculinae with Malacocottus, Dasycottusk, Cottunculus, Eurymen and 2 spp. formerly placed in Neophrynichthys [N. latus (Hutton, 1875) comb. nov. (Psychrolutes) and N. marmoratus Gill, 1889], and the soft-headed forms of the subfamily Psychrolutinae with Ebinania, Psychrolutes and Neophrynichthys. The genus Psychrolutes is expanded and recognized to have 2 relatively distant subgenera; P. (= Gilbertidia) sigalutes shares several osteological characters with P. paradoxus and is placed in the same subgenus, Psychrolutes; P. (= Cottunculoides) inermis and P. marcidus (formerly placed in Neophrynichthys) are placed in a 2nd subgenus, Cottunculoides, along with P. phrictus and P. sio. A key to the species of the family is presented.