| Congrogadinae | |
|---|---|
 | |
| Congrogadus subducens | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Clade: | Percomorpha |
| (unranked): | Ovalentaria |
| Family: | Pseudochromidae |
| Subfamily: | Congrogadinae Günther, 1862 [1] |
Congrogadinae is a subfamily of ray-finned fishes, one of four subfamilies that make up the family Pseudochromidae, these elongated fish are commonly called eel-blennies.
The species in the subfamily Congrogadidae have elongated rather eel-like bodies which are covered in with small cycloid scales. Their dorsal fin normally has a single robust spine and 32–79 rays while the anal fin lacks any spines and has 26–66 rays. The dorsal and anal fins are long and the pelvic fin is sometimes present but in more than half the species it is absent. The caudal fin is joined to the long dorsal and anal fins in a small number of species but is separated in all the others. They have a protractable mouth and there is a rear facing spine on the opercle. They have between one and three complete or partial lateral lines. There are no teeth on the palatine and they may or may not be present on the vomerine bone. They grow to a maximum length of 40 centimetres (16 in). [2]
They lay eggs which are covered in hooks, some of which may develop into filaments. The eggs are clumped together in an egg mass the hooks on the eggs' surfaces interlocking with each other, which is most likely guarded by the male. [3]
The species in the Congrogadinae inhabit coral reefs as well as sand and mud substrates from the intertidal zone down to 140 metres (460 ft). They are found in the Indo-Pacific region. There is one species which lives within sponges which is found in the Gulf of Carpentaria. [2] The subfamily is thought to have arisen in the proto Indian Ocean before Gondwanaland broke up and dispersed into the western Pacific Ocean. [4]
The following genera are included within the Congrogadinae: [1] [2]
The Scorpaenidae are a family of mostly marine fish that includes many of the world's most venomous species. As their name suggests, scorpionfish have a type of "sting" in the form of sharp spines coated with venomous mucus. The family is a large one, with hundreds of members. They are widespread in tropical and temperate seas but mostly found in the Indo-Pacific. They should not be confused with the cabezones, of the genus Scorpaenichthys, which belong to a separate, though related, family, Cottidae.
Nototheniidae, the notothens or cod icefishes, is a family of ray-finned fishes, part of the suborder Notothenioidei which is traditionally placed within the order Perciformes. They are largely found in the Southern Ocean.
Rhamphocottus is a genus of marine ray-finned fishes belonging to the family Rhamphocottidae. These fishes are known as grunt sculpins. The grunt sculpins are found in the North Pacific Ocean.
Hexagrammidae, the greenlings, is a family of marine ray-finned fishes belonging to the suborder Cottoidei in the order Scorpaeniformes. These fishes are found in the North Pacific Ocean.
The dottybacks are a family, Pseudochromidae, of fishes which were formerly classified in the order Perciformes, but this has been revised and the family is regarded as of uncertain affinities, or incertae sedis within the Ovalentaria, a clade within the Percomorpha. Around 152 species belong to this family.
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.
Helicolenus percoides, the reef ocean perch, coral cod, coral perch, Jock Stewart, kuriarki, ocean perch, red gurnard perch, red gurnard scorpionfish, red ocean perch, red perch, red rock perch, scarpee or sea perch, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, part of the family Scorpaenidae. It is found in the southwestern Pacific Ocean.
Micropogonias is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. These fishes are found in the eastern Pacific and western Atlantic Oceans.
Sebastolobus, the thornyheads, is a genus of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. These fishes are native to the northern and eastern Pacific Ocean. They are generally found in deep waters.
Lutjanus is a genus of marine ray-finned fish, snappers belonging to the family Lutjanidae. They are found in the Atlantic, Indian, and Pacific Oceans. They are predatory fish usually found in tropical and subtropical reefs, and mangrove forests. This genus also includes two species that only occur in fresh and brackish waters.
Bellator egretta, the streamer searobin, is a species of marine ray-finned fish belonging to the family Triglidae, the sea robins. This fish is found in the western Atlantic Ocean.
Xenaploactis is a genus of marine ray-finned fish, velvetfishes belonging to the family Aploactinidae. This genus is found in the western Pacific Ocean and the eastern Indian Ocean.
The blackfin stonefish is a species of venomous ray-finned fish, a stonefish be longing to the subfamily Synanceiinae of the family Scorpaenidae, the scorpionfishes and their relatives. It is the only species in the monotypic genus. It is native to the western Indian Ocean where it occurs in areas with muddy bottoms. This species grows to a total length of 13 centimetres (5.1 in).
The stargazing stonefish is a species of stonefish native to the Indian Ocean and the western Pacific Ocean where it is found on muddy bottoms in estuaries. This venomous species is also a minor component of local commercial fisheries. This species grows to a length of 8 centimetres (3.1 in) SL. This species is the only known member of the genus Trachicephalus.
Congrogadus is a genus of ray-finned fishes, the type genus of the subfamily Congrogadinae, the eel blennies, part of the dottyback family, Pseudochromidae. The genus Congrogadus has an Indo-Pacific distribution.
Halidesmus is a genus of ray-finned fishes, the type genus of the subfamily Congrogadinae, the eel blennies, part of the dottyback family, Pseudochromidae. They are found in the western Indian Ocean as far east as India, with one species extending marginally into the south-east Atlantic Ocean.
Haliophis is a genus of ray-finned fishes, the type genus of the subfamily Congrogadinae, the eel blennies, part of the dottyback family, Pseudochromidae. They are found in the Indian Ocean and in the western Pacific Ocean.
Pseudochrominae is a subfamily of ray-finned fishes, one of four subfamilies that make up the family Pseudochromidae, the species within the subfamily are commonly called dottybacks. They are small reef-associated marine fish which have an Indo-Pacific distribution.
Lepidotrigla spiloptera, the spotwing gurnard, spotfin gurnard or red-fringed gurnard, is a species of marine, demersal ray-finned fish from the family Triglidae, the gurnards and sea robins. It has a wide Indo-Pacific distribution.
Lumpenopsis is a genus of marine ray-finned fishes belonging to the family Stichaeidae, the pricklebacks or shannies. These fishes are found in the North Pacific Ocean.