The cutlassfishes are about 45 species of predatory fish in the family Trichiuridae found in seas throughout the world. Fish of this family are long, slender, and generally steely blue or silver in colour, giving rise to their name. They have reduced or absent pelvic and caudal fins, giving them an eel-like appearance, and large fang-like teeth.
Maurolicus is an oceanic ray-finned fish genus which belongs in the marine hatchetfish family Sternoptychidae. They are commonly known as pearlsides, but the brilliant pearlside is the related Argyripnus iridescens. Occasionally, "bristle-mouth fishes" is used as a common name, but that usually refers to the genus Argyripnus or the family Gonostomatidae.
The Percophidae, duckbills, are a family of percomorph fishes, from the order Trachiniformes, found in tropical and subtropical waters of the Atlantic and Indian Oceans and in the southwestern and southeastern Pacific.
The northern bastard codling is a morid cod of the genus Pseudophycis, found around southern Australia including Tasmania, and New Zealand, from the surface to 220 m. Its length is between 15 and 25 cm.
The silver scabbardfish, Lepidopus caudatus, is a cutlassfish of the family Trichiuridae found throughout the temperate seas of the world. It grows to over 2 metres in length.
The North Pacific frostfish, Benthodesmus pacificus, is a cutlassfish of the family Trichiuridae found in the north Pacific Ocean between latitudes 50° N and 30° N at depths of 100–1,000 metres (330–3,280 ft). Its length is up to 112 centimetres (44 in).
Etmopterus is a genus of lantern sharks in the squaliform family Etmopteridae. They are found in deep sea ecosystems of the Atlantic, Indian and Pacific Oceans.
The Vermetidae, the worm snails or worm shells, are a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Littorinimorpha. The shells of species in the family Vermetidae are extremely irregular, and do not resemble the average snail shell, hence the common name "worm shells" or "worm snails".
Comitas is a genus of medium-sized sea snails, marine gastropod molluscs in the family Pseudomelatomidae.
Chelyconus is a subgenus of sea snails, cone snails, marine gastropod mollusks in the genus Conus, family Conidae, the cone snails and their allies.
The razorback scabbardfish, Assurger anzac, is a rare species of cutlassfish, family Trichiuridae, and the only member of its genus. It has been caught from scattered locations worldwide: in the Atlantic Ocean it is known from off Puerto Rico, Uruguay, and the Walvis Ridge, in the Indian Ocean it is known from off western Australia, and in the Pacific Ocean it is known from off New Guinea, southern Japan, Midway Island, California, and the Nazca and Sala y Gomez Ridges. Adults are thought to be benthopelagic, occurring at a depth of 150–400 meters (490–1,310 ft), while juveniles are found near the surface or in midwater.
Benthodesmus tenuis, the slender frostfish or ribbon scabbardfish, is a species of cutlassfish in the family Trichiuridae.
Californiconus is a genus of sea snails, marine gastropod mollusks. The experts at WoRMS place this group of species in the family Conidae, the cone snails, but some other experts placed previously the genus in a proposed family, the Conilithidae. This is a monotypic genus.
Conasprella is a genus of sea snails, marine gastropod mollusks in the family Conidae, the cone snails and their allies. This genus was formerly treated by some experts as a member of the family Conilithidae and as an "alternative representation" of this group of species.
Dalliconus is a subgenus of sea snails, marine gastropod mollusks in the genus Conasprella, family Conidae, the cone snails and their allies.
Endemoconus is subgenus of sea snails, marine gastropod mollusks in the genus Conasprella, family Conidae, the cone snails and their allies.
Gastridium is a subgenus of sea snails, marine gastropod mollusks in the genus Conus, family Conidae, the cone snails and their allies.
Tentoriceps is a monotypic genus of cutlassfish, family Trichiuridae, from the Indian and Pacific Oceans. The sole species is Tentoriceps cristatus. Its common name is crested hairtail.
Lepidopus is a genus of fishes belonging to the family Trichiuridae.
Eupleurogrammus is a genus of cutlassfish from the Indo-Pacific region. They are benthopelagic fishes which occur mainly over the continental shelf where they move upwards in the water column towards the surface at night and feed on small fishes, squid and crustaceans. They have very elongated and highly compressed bodies which tapers towards a posterior point.
