The cutlassfishes are about 45 species of predatory ray-finned fish in the family Trichiuridae of the order Scombriformes 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.
The tubeshoulders are a family, Platytroctidae, of ray-finned fish belonging to the order Alepocephaliformes. They are found throughout the world, except for the Mediterranean Sea. Tubeshoulders live at moderate depths of 300 to 1,000 m, and some have light-producing organs. They are generally small to medium fish, ranging from 9 to 33 cm in length.
Enneanectes is a genus of triplefin fish in the family Tripterygiidae.
Lasiognathus, the wolftrap anglerfish, is a genus of deep-sea anglerfish in the family Thaumatichthyidae, with six species known from the Atlantic and Pacific Oceans.
Leptochilichthys is a genus of fishes containing four species. Leptochilichthys is the only genus in the former family Leptochilichthyidae but is now included within the broader family Alepocephalidae.
Starksia is a genus of labrisomid blennies native to the western Atlantic Ocean and the eastern Pacific Ocean. Their typical length is 2 cm (0.79 in) SL. The generic name honours the American ichthyologist Edwin Chapin Starks (1867-1932) of Stanford University for his work on Pacific coastal fishes. As a genus Starksia is distinguished from other labrisomids by their scaled bodies, two obvious soft rays in the pelvic fin and the male's have an intromittent organ which is near to or attached to the first spine of their anal fins, which is also somewhat separated from the fin.
Bathytroctes is a genus of deepwater marine ray-finned fishes belonging to the family Alepocephalidae, the smooth-heads. These fishes are found in the deeper waters of the Oceans around the world..
Conocara is a genus of deepwater marine ray-finned fishes belonging to the family Alepocephalidae, the smooth-heads. These fishes are found in the deeper waters of the Oceans around the world.
Talismania is a genus of slickheads.
Holtbyrnia is a genus of deepwater marine ray-finned fishes belonging to the family Platytroctidae, the tubeshoulders. The fishes in this genus are found in the Eastern Atlantic Ocean, the Indo-West Pacific and the southeastern Pacific Ocean.
Mentodus is a genus of deepwater marine ray-finned fishes belonging to the family Platytroctidae, the tube shoulders. The species in this genus are known from tropical and temperate oceans around the world.
Normichthys is a genus of deepwater marine ray-finned fishes belonging to the family Platytroctidae, the tube shoulders. The species in this genus are known from tropical and temperate oceans around the world.
Platytroctes is a genus of ray-finned fish in the family Platytroctidae, the tubeshoulders.
Sagamichthys is a genus of tubeshoulders. The generic name derives from Sagami Bay, Japan, and the Greek ἰχθύς (ichthys), "fish".
Searsioides is a genus of tubeshoulders native to the western central Pacific Ocean.
Parmops is a genus of flashlight fishes found in the deep waters of the central Pacific Ocean. P. coruscans is found in the Eastern Pacific around Tahiti and P. echinatus is found in the Western Pacific around Fiji.
Lepidopus is a genus of cutlassfishes.
Diplectrum, commonly known as sand perches, is a genus of marine ray-finned fishes which is a member of the subfamily Serraninae of the family Serranidae, which includes the groupers and anthias. There are 12 species distributed in the western Atlantic Ocean and the eastern Pacific Ocean.
Searsid is a term used to refer to fish of the family Platytroctidae that resemble Searsia koefoedi. Fish referred to as searsids include:
Maul's searsid, also called Maul's tubeshoulder, is a species of fish in the family Platytroctidae (tubeshoulders), named for Günther Maul.
