| Smallmouth spiny eel | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Notacanthiformes |
| Family: | Notacanthidae |
| Genus: | Polyacanthonotus |
| Species: | P. rissoanus |
| Binomial name | |
| Polyacanthonotus rissoanus (De Filippi & Vérany, 1857) | |
| Synonyms [2] | |
| |
The smallmouth spiny eel (Polyacanthonotus rissoanus), also called the shortspine tapirfish, [3] is a species of deep-sea spiny eel. [4] [5] [6]
The smallmouth spiny eel is silver or brown in colour, with a maximum length of 36 cm (14 in). It has 26–36 dorsal soft rays. It looks similar to Polyacanthonotus africanus but its lateral line is lighter and less distinct. It has a small mouth and a short preoral snout. Mature males are distinguished by their black nostrils. [7]
The smallmouth spiny eel lives in the Arctic waters off of Canada and in the North Atlantic Ocean off of Iceland, Ireland and Great Britain; it has also been observed in the waters off South Africa and in the Tasman Sea. [8] [9] It is a benthic and bathydemersal species, living at depths of 500–2,800 m (1,600–9,200 ft). [10] [11] [12]
Polyacanthonotus rissoanus feeds on coelenterates, worms and crustaceans. [13]
Giuseppe Antonio Risso, called Antoine Risso, was a Niçard naturalist.
Polyacanthonotus is a genus of spiny eels, with these currently recognized species:
The longnose tapirfish is a species of deep-sea spiny eel that lives in bathypelagic environments, and is a host of an endoparasite, Brachyenteron rissoanum.
The shortfin spiny eel, also called Bonaparte's spiny eel, is a member of the family Notacanthidae, the deep-sea spiny eels, which are not true eels (Anguilliformes).
The Jeffrey's goby is a species of goby fish.
Scopelogadus beanii, or Bean's bigscale, is a species of ridgehead fish. It is named for Tarleton Hoffman Bean.
Sciadonus galatheae is a species of fish in the family Aphyonidae.
The false boarfish is a species of fish in the family Oreosomatidae (oreos).
Cataetyx alleni, sometimes called Allen's brotula, is a species of fish in the family Bythitidae.
The large-eye snaggletooth, also called the straightline dragonfish or Antarctic snaggletooth, is a species of fish in the family Stomiidae.
The North Atlantic codling is a species of fish in the family Moridae.
Schnakenbeck's searsid is a species of fish in the family Platytroctidae (tubeshoulders).
The Arctic rockling, also called the silver rockling or Arctic threebeard, is a species of fish in the family Lotidae.
Leptostomias gladiator is a species of fish in the family Stomiidae. It is sometimes called the scaleless dragonfish, but that name is shared with many other species.
Sudis hyalina is a species of fish in the family Paralepididae (barracudinas).
The multipore searsid is a species of fish in the family Platytroctidae (tubeshoulders).
The deepwater ray, also called the deepwater skate or abyssal skate, is a species of skate in the family Rajidae.
Maul's searsid, also called Maul's tubeshoulder, is a species of fish in the family Platytroctidae (tubeshoulders), named for Günther Maul.
Stomias boa, also known as the boa dragonfish, scaly dragonfish, dragon-boa or boa scaly dragonfish, is a species of deep-sea fish in the family Stomiidae.
The spiny scorpionfish is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the eastern Atlantic Ocean and the Mediterranean.
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