Results for “species”

This small species is a popular aquarium fish but there is some confusion surrounding its identity. Two colour forms have been traded, one of which also possesses tiny hooks on the fin rays. It can be distinguished from congeners by colour pattern; the body is rose-coloured, fins red with no black markings, and the ovoid humeral spot is prominent, measuring around half of the body depth.

In the aquarium hobby the name Hyphessobrycon stegemanni has frequently been misapplied to a species that has been described as Hemigrammus ataktos Marinho, Dagosta, & Birindelli 2014. The reasons for this confusion are presumably that the two occur sympatrically in the rio Tocantins system and both possess a dark lateral stripe on the body.

At least two colour forms have been traded, one of which is more intensely-coloured and has been referred to as H. sweglesi 'red' or 'rubra'. The bright red pigmentation is retained in long-term captive specimens, suggesting that it is not considered to be an artefact of diet, but we suspect it might reflect conditions at the collection locality with the reddest fish putatively inhabiting blackwater and plainer forms clearwater environments. Zarske (2014) found the two forms to be identical in terms of morphology an...

This undescribed species is part of the Hypostomus cochliodon complex, all of which were previously included in the genus Cochliodon. This is now considered a synonym of Hypostomus. Members of this group can be distinguished from congeners by several differences in morphology, most notably the hump-backed profile of mature fish and spoon-shaped dentition. These features, along with the fishes tendency to eat wood, are shared with the Panaque genus of the Ancistrinae subfamily, but the two genera...

It's suprising that this relatively unknown species is not more popular in the hobby, given its small adult size and peaceable nature. It's often confused with LDA09, but can be distinguished by the pattern of small spots on its head, as in LDA09 the spots are larger and uniform in size over the whole body.

This species is part of the Hypostomus cochliodon complex, all of which were previously included in the genus Cochliodon, which is now considered a synonym of Hypostomus. Members of this group can be distinguished from congeners by several differences in morphology, most notably the hump-backed profile of mature fish and spoon-shaped dentition. These features, along with the fishes tendency to eat wood, are shared with the Panaque genus of the Ancistrinae subfamily, but the two genera are known ...

Supposedly exported from the upper Amazon region in Peru but precise details are lacking. It's unclear whether this unidentified species is conspecific with the similarly nameless congener L266 or not.

This undescribed species is part of the Hypostomus cochliodon complex, all of which were previously included in the genus Cochliodon, which is now considered a synonym of Hypostomus. Members of this group can be distinguished from congeners by several differences in morphology, most notably the hump-backed profile of mature fish and spoon-shaped dentition. These features, along with the fishes tendency to eat wood, are shared with the Panaque genus of the Ancistrinae subfamily, but the two gener...

This species is migratory on a seasonal basis; during the dry season it can be found in larger river channels, whereas during drier months it moves into smaller tributaries and flooded forests. Apparently displays a preference for rocky habitats and is not known to adapt to reservoirs or other artificial impoundments.

It is very similar to H. wetmorei but can be told apart by possessing yellow (vs. orange to red in H. wetmorei) pectoral, pelvic, and anal fins. It thus appears likely that yellow-finned fish marketed as H. wetmorei or 'lemon fin barb' in the ornamental trade are actually H. vernayi, with both species available on a regular basis.

Also known as the Spilotum or Moga, this is a popular and beautiful cichlid that exists in several different colour forms, depending on collection locality. It has also been hybridised with the convict cichlid (Archocentrus nigrofasciatus), although this is not to be encouraged. A study in 2004 found an apparent close genetic association between this species and Neetroplus nematopus, another cichlid found in the same area in nature. The 2 show remarkable similarities strategy, patterning and uni...

This species is known from the rio Negro within the Brazilan Amazon basin and upper Río Orinoco system in Venezuela. Type locality is 'Rio Adujá, Rio Itú, tributary of middle Rio Negro, Amazonia, Brazil'.

This species has been recorded from the Guaporé, Madeira, Branco, Trombetas, and Urubu river systems within the Amazon river basin, Brazil. Type locality is 'Igarapé Jatuarana, 5 kilometers above Samuel, Rio Guaporé, Rondonia, Brazil'.

All Iksookimia species are endemic to Korea, and I. pumila is known only from the Baek River drainage in south-western Korea where its presence has been undermined at some localities due to construction of a dam in the middle reaches of the river during the late 1990s. Type locality is 'Paikchon stream at Sangso-myon, Puan-gun, Chollabuk-do, South Korea'. The reservoir formed by the dam has also be...

The monotypic genus Incisilabeo is separated from the closely-related taxon Bangana by presence of a unique and conspicuous transverse notch across the top of the head, comparable in position to the ethmoid furrow in Bangana species. This notch approaches the eye, and the top of the head bulges forward, with the nostrils located partially beneath this projection and immediately anterior to the eyes. Tubercles cover the upper portion of the rostral fold, lower part of the notch, and upper surface of the forehead projection...

A peaceful species suited to a well-chosen community aquarium. There are plenty of potential tankmates including many cyprinids, loaches, cichlids, catfishes and characins, although as always proper research is essential in order to avoid problems.

This species was previously included in the genus Nannacara before being moved to the newly-erected taxon Ivanacara by Römer and Hahn (2006)....

Contrary to many reports, including a number of scientific papers, this species breeds in the same way as other cyprinodontids and does not dig pits or exhibit extended parental care. It's a fractional spawner with females depositing eggs on a more-or-less continuous basis when a warm temperature is maintained though ideally it should be permitted to breed on a seasonal basis in spring and late summer as it would in nature.

Julidochromis are commonly known as "Julies" in the hobby. As with other Julies, large water changes should be avoided as this can cause mated pairs to turn on one another. There is some speculation as to whether this species has been placed in the correct genus. It has a different shape to other Julidochromis, having a pointed snout. It also exhibits different patterning, with blue edging to the dorsal and anal fins, and the horizontal stripes are very dark in colour. Furthermore i...

Julidochromis are commonly known as "Julies" in the hobby. Despite being the largest species of Julie this is actually the least aggressive member of the genus. As with other Julies, large water changes should be avoided as it can cause mated pairs to turn on one another. J.regani may also be seen for sale labelled as Striped Julie or Convict Julie. Several geographical morphs are available. Apparently, the yellower of these are found in shallower water with the darker forms inhabit...