Results for “genus”

This fish was collected for the aquarium trade during 2012 but its identity has not yet been established. Schistura is the most species-rich genus among nemacheilid loaches with some 190 members and it continues to grow with over 100 having be...

Following Kottelat (1990) the genus Nemacheilus is characterised by a combination of characters as follows: elongate body; complete lateral line; presence of enlarged scales above and below the lateral line in some species; caudal-fin forked to deeply forked with enlarged upp...

This fish is one of a number of apparently unidentified Scleromystax species known in the aquarium hobby. The genus Scleromystax is included in the family Callichthyidae, of which members are often referred to collectively as 'armoured' or 'mailed' catfishes group due to the presence of bony plates in place of scales on the body.

This species exhibits some interesting behaviour including a degree of social interaction plus the ability to cling to vertical or overhanging surfaces. It's sometimes sold under the name 'serpent loach'. The genus currently contains just three members all of which are known only from the Mekong basin. S. octozona is the type species and separated from the others mainly by body patterning which consists of 7-8 dark bars on each flank, these extending the full depth of the body and much wider than the pale interspaces between.

Fish sold under the name S. zonata are sporadically available in the aquarium trade but the majority appear to be the congener S. octozona. The genus currently contains just three members all of which are known only from the Mekong basin. S. octozona is the type species and separ...

S. altuvei is very scarce in the hobby, most commonly being found among imports of juvenile S. rhombeus (the type species of the genus). It's also known as the "Caribe azul" or "blue caribe" in the trade. There are currently 24 described species of Serrasalmus, many of which look superficially similar. This one is considered a member of the "compressed group". This grouping of morphologically similar species currently comprises S. altuvei, S. geryi, S. compress...

A number of sources state that S. brandtii can be identified by the relatively anterior position of the anal-fin origin beneath the first few dorsal-fin rays. However, images of specimens collected from the rio São Francisco, where it is the only member of the genus present, suggest that this is not always the case and this is also supported by the figure from Eigenmann (1915). No recent diagnosis of the species is available.

This species occasionally appears in the ornamental trade where it is sometimes referred to as 'blue tiger piranha' Following Fink and Macaht can be distinguished from other members of the genus by the following combination of characters: body shape deep and rhomboid; head robust, snout blunt; eye large; mouth moderate, jaw projecting; 1-3 ontogeneticlly var...

This is one of the more readily-available members of the genus and popularly referred to as S. sp. 'spotted' or S. sp. 'special'. It's superficially similar in appearance to S. albisuera but in that species body patterning consists of a network of irregular dark lines forming a complicated series of reticulations vs. many small, light spots on a dark background in S. sp. 'SEW01'. It's been suggested that these two may represent the same species but this...

This species first became available in early 2010 and sometimes appears on trade lists under the vernacular names 'Laos sucker' or 'Laos Sakura sucker'. It's distinguishable from other members of the genus by the following combination of characters: body spotted and without stripes; no concentric bands on paired fins; origin of pelvic-fin below origin of dorsal-fin; origin of pectoral-fin posterior to corner of mouth; pelvic fin reaching origin of anal fin; small elevated ...

This species is not in the aquarium trade though is maintained by a few private collectors. It can be distinguished from all other members of the genus by the following combination of characters: first dorsal-fin withfirst dorsal-fin elongate in males; anterior portion of body with loosely-arranged ctenoid scales; head, entire nape to first dorsal-fin base, pectoral base, and belly naked; male colour pattern comprising creamy-yellow anterior portion of body with dark blotch at midbody and bright orange/red in postero...

This species is also sold under the vernacular names 'golden Chinese loach' and '12-banded Chinese loach'. Along with S. robusta it's the most commonly-traded member of the genus, and the two are often imported in mixed batches, presumably because they occur and are thus collected together in nature. Like most congeners it has a highly flexible, sinuous body which makes it very interesting to observe. S. pulchra can be differentiated from...

This species not often seen in the aquarium trade and is apparently rare in its natural waters, with the occasional individual imported as bycatch in shipments of S. pulchra or S. robusta, or by private collectors. Like others in the genus it has a highly flexible, sinuous body which makes it very interesting to observe. It's told apart from congeners by the following combination of chara...

This species is also sold under the vernacular names 'golden Chinese loach' and '12-banded Chinese loach'. Along with S. pulchra it's the most commonly-traded member of the genus, and the two are often imported in mixed batches, presumably because they occur and are thus collected together in nature.

This species is probably the most common member of the genus in the aquarium trade but still not often exported in numbers. Instead it's more often found in mixed shipments of other wild-collected fishes from southern China, particularly Beaufortia or Pseudogastromyzon spp. It may appear superficially simi...

This species is also known by the vernacular names "Hockey Stick Catfish", "Lima Shovelnose", "Chiripira", "Chucharón" and "Pico de pato". The genus Sorubim currently contains five recognised species. Of the others S. cuspicaudus is recorded from the parts of the Rio Essequibo, Rio Orinoco, Amazon and Lake Maracaibo basins, S. elongatus from the Rio Essequibo, Rio Orinoco Rio Mamore and Amazon and S. maniradii from the mid-to-upper Amaz...

This species is traded under several names of which others include 'sharp-nosed gourami', 'moonlight chocolate gourami', 'black-lined chocolate gourami' and 'black-tailed chocolate gourami', though it's far from common in the hobby. Its unique colour pattern makes it difficult to confuse with any of the three other members of the genus even in the absence of meristic data.

The genus Sphaerichthys currently comprises four species with S. osphromenoides by far the best known in the hobby. It's easily distinguishable from the congeners S. vaillanti and S. acrostoma since both exhibit a notably more elongate head and body profile, reverse sexual dimorphism (i.e. females are the more colourful/strongly-patterened), and are paternal mouthbrooders.

This species is traded under several names of which others include 'Samurai gourami' and 'Samurai Zebra Chocolate Gourami'. Though the former of these is arguably the most common, these names are potentially misleading since the fish is neither especially combative nor from Japan. Its unique colour pattern makes it difficult to confuse with any of the three other members of the genus even in the abse...

S. tinanti has a confused taxonomic history, having been previously classified in the genera Gobiochromis and then Leptotilapia, before being assigned to Steatocranus. Further taxonomic revision is likely, as it exhibits both behavioural and morphological differences to other species in the genus. It is a reophilic fish, meaning it inhabits fast waters. Its swimbladder is relatively small to reduce buoyancy and thus prevent it from being swept away by the strong currents in its natural habita...