A new grenadier, genus Caelorinchus, from Australia and New Zealand (Pisces, Gadiformes, Macrouridae)

A new species, Caelorinchus trachycarus, is described from continental slop e depths of 622-1350 m off New Zealand, southern Australia, and the Norfolk Ridge south of New Caledonia. The modified scales of head ridges is especi ally spiny, more so than in any other member of the genus. The blackish fin s, dark overall coloration, prominent free neuromasts on the head, and the numerous parallel rows of spinules on body scales distinguish the new speci es from the closely similar and sympatric C. acanthiger. It differs from C. parallelus and C. kermadecus by its naked nasal fossa, snout length, and s cale spinulation, among other characters.