| Twohorn sculpin | |
|---|---|
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Scorpaeniformes |
| Family: | Cottidae |
| Genus: | Icelus |
| Species: | I. bicornis |
| Binomial name | |
| Icelus bicornis (Reinhardt, 1840) | |
The twohorn sculpin (Icelus bicornis) is an Arctic benthic fish species of the order Scorpaeniformes.
The twohorn sculpin is typically 5–12 cm long and may reach 15 cm. It has a thin caudal peduncle, one sharp spine located in front of each eye and two spines behind, hence its common name. Like other sculpins, this species has two dorsal fins (the first is spiny while the second is soft-rayed), large pectoral fins and slender pelvics. The caudal fin is slightly rounded and has dark, vertical bars and a black spot at the base. The body is yellowish, with many dark blotches on the back and sides.
In Canada, this fish occurs as far north as the northern tip of Ellesmere Island. Elsewhere, it is distributed along Norwegian coasts up to Spitzbergen and the Barents Sea (as far north as 82 degrees), and west to Iceland and Greenland. It is typically found at depths between 40 and 180 metres on sand, mud or rocky substrates.
Spawning apparently occurs from August to October. Females produce from 100 to 400 eggs, in function of their body size.
The spoonhead sculpin is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. This species is widespread in northeastern North America.
The scaled sculpins, Icelus, are a genus of marine ray-finned fishes belonging to the family Cottidae, the typical sculpins. Most of the fishes in this genus are found in the northern Pacific Ocean but they also occur in the North Atlantic Ocean.
The snubnose sculpin is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This fish is found in the eastern Pacific Ocean.
The Pacific staghorn sculpin is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This species is found in the eastern Pacific Ocean. It is the only species in the monospecific genus Lepidocottus.
Plectorhinchus albovittatus, the two-striped sweetlips or giant sweetlips, is a species of marine ray-finned fish, a sweetlips belonging to the subfamily Plectorhinchinae, part of the grunt family Haemulidae. It is native to the Indian Ocean and the western Pacific Ocean.
Bellator militaris, the horned sea robin, 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.
Clinocottus acuticeps, the sharpnose sculpin, is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This sculpin is found in the eastern Pacific Ocean.
The rosylip sculpin is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This species is found in the eastern Pacific Ocean from Alaska to central California where it is an inhabitant of tidepools and other intertidal environments. This species grows to a length of 15 centimetres (5.9 in) TL. This species is the only known member of its monospecific genus Ascelichthys.
The roughback sculpin is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This species is found in the eastern Pacific Ocean. The roughback sculpin is the only known member of the genus Chitonotus.
Blepsias cirrhosus, the silverspotted sculpin, is a species of sculpin belonging to the subfamily Hemitripterinae of the family Agonidae. This species is found the northern Pacific Ocean from the Sea of Japan and Alaska to San Miguel Island off southern California.
Blepsias bilobus, the crested sculpin, is a species of sculpin belonging to the subfamily Hemitripterinae of the family Agonidae. This species is found in the North Pacific Ocean.
Enophrys bison, the buffalo sculpin, is a species of marine ray-finned fish, belonging to the family Cottidae, the typical sculpins. It is found in the eastern Pacific Ocean.
Myoxocephalus scorpioides, the Arctic sculpin or northern sculpin, is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This fish is found in the Arctic Ocean.
Artedius corallinus, the coralline sculpin, is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. It is found in the eastern North Pacific along the coasts of the western United States and Baja California.
Drepane punctata, the butterfish, concertinafish, jetto, peppercorn, sickle-fish, silver moonfish, spotted batfish, spotted sicklefish, sicklefish or spotted spadefish, is a species of ray-finned fish belonging to the family Drepaneidae, the sicklefishes. This fish is found in the Indo-Pacific.
Sebastes rastrelliger, the grass rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is native to the waters of the eastern Pacific Ocean.
The rosy sculpin is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. It inhabits the coastal northeastern Pacific Ocean, ranging from California (US) to Baja California.
Triglops murrayi, the moustache sculpin, is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This fish is found in the North Atlantic Ocean.
Icelinus borealis, or the northern sculpin or comb sculpin, is a species of fish in the family Cottidae. It can be found in the northeastern Pacific Ocean along the western coast of North America.
The Arctic staghorn sculpin is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This sculpin is found in the Arctic Ocean and the northern Atlantic Ocean.
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