Results for “genus”

The genus Apistogramma is among the most speciose of South American cichlid genera with around 70 species valid at present but many more awaiting description. In addition many species exist in two or more geographical colour forms which may or may not turn out to be distinct in the future. Hobbyists tend to label these with collection data if available in order to avoid mixing them and the potential of hybridisation. Member species have also been organised into a series of species lineages, complexes and groups by authors in order to better separate them. Such lists have been augmented by fish that have appeared in the aquarium trade and are in a state of near-constant flux

Prior to decription this species was known as A. sp. 'großmaul' or 'bigmouth', and it has also been assigned the code A190 under the DATZ system. The genus Apistogramma is among the most speciose of South American cichlid genera with around 70 species valid at present but many more awaiting description. In addition many species exist in two or more geographical colour forms which may or may not turn out to be distinct in the future. Hobbyists tend to label these with collection data if available in order to avoid mixing them and the potential of hybridisation.

This species is assigned the code A138 under the DATZ system, with the Venezuelan variant referred to as A139 for easy reference. The genus Apistogramma is among the most speciose of South American cichlid genera with around 70 species valid at present but many more awaiting description. In addition many species exist in two or more geographical colour forms which may or may not turn out to be distinct in the future. Hobbyists tend to label these with collection dat...

This species is assigned the 'A' number A204 under the DATZ system with possibly conspecific, related forms coded A205 or A206 depending on collection locality and representing populations from Argentina and the rio Guaporé, respectively. The genus Apistogramma is among the most speciose of South American cichlid genera with around 70 species valid at present but many more awaiting description.

This is currently the only described member ofthe genus and despite having a wide distribution, it's not particularly common in Lake Malawi. Correspondingly it's not seen all that often in the hobby either. It's beak-like mouthparts are specially adapted to allow it to hunt smaller fish among crevices between rocks. It can also extend the mouth in all four directions at once, allowing it to swallow prey up to around 4" long! As well as hunting amongst rocks, Aristoch...

Endemic to pthe upper Amazon basin in Peru, around the city of Iquitos. Most Astyanax spp. are not popular in the aquarium hobby, though the genus is among the most speciose within the family Characidae. A. kennedyi is no exception; you'll rarely see it offered for sale but may find the occasional specimen mixed among other species in shipments of wild fishes from Peru.

Most Astyanax spp. are not popular in the aquarium hobby, though the genus is among the most speciose within the family Characidae. A. leopoldi is no exception in that you'll rarely see it offered for sale but may find the occasional specimen mixed among other species in shipments of wild fishes from Peru.

Some eminent authors believe this species to be a geographical variant of the highly variable congener A. stuartgranti rather than a distinct taxon but since most popular resources continue to view it as valid we also list it here. At Masinje it has been observed to show a distinct preference for rocky caves and crevices in relatively shallow (3-6 metres deep) water. This is in contrast to most other members of the genus, which tend to forage over sand, but similar to behaviour seen in A. jacobfreibergi.

This was one of the first Aulonocara spp. to enter the hobby and its popularity has endured. It's known by several other vernacular names including 'Freiberg's peacock', 'fairy cichlid' and 'African butterfly' as well as the erroneous 'scientific' names Trematocranus trevori, T. jacobfreigbergi and T. regina. A naturally-occurring, yellowish form from Undu reef, Tanzania is often referred to as 'lemon jake'. It can be told apart from most other members of the genus by the broad, pale distal margins in the dorsal, anal and caudal fins, more deeply-forked caudal fin and larger adult size.

This species is sometimes sold under the trade name of 'chameleon fish' due to its ability to rapidly change colour, especially when breeding or stressed. It was originally described as Labrus badis by Hamilton but Bleeker reclassified it as Badis buchanani in 1854; he had adopted the species name 'badis' as the new name for the genus and wished to avoid using a tautonym. At that time the use of tautonyms was avoided in zoological taxonomy but is now permissible under ICZN ru...

Like most badids this species is poorly documented and has yet to find significant popularity in the aquarium hobby. Within the genus it is most closely-related to B. pyema but the two are unlikely to be confused as B. corycaeus is much the deeper, darker-bodied fish. Prior to 2002 the family Badidae included just five species of which only B. badis and, to a lesser extent, Badis dario (referred to as B. bengalensis by some sources) were popular in the aquarium hobby. However an extensive rev...

Like most badids this species is poorly documented and has yet to find significant popularity in the aquarium hobby. It is arguably the most attractive member of the genus and we hope to see it more widely available; the fish in our images representing what is thought to be the only batch exported from Myanmar to date. It is most closely related...

Like most badids this species is poorly documented and has yet to find significant popularity in the aquarium hobby, though given its restricted natural distribution it is unlikely ever to be available in large numbers. Within the genus it is most easily confused with B. ruber and B. siamensis but both these species have rows of dark spot-like markings on the flanks which are lacking in B. khwae. The three also differ in the shape of the dark marking on the caudal peduncle; in B. ruber it is rel...

Like most badids this species is poorly documented and has yet to find significant popularity in the aquarium hobby; to date it has only been exported in very limited numbers. It was for a number of years known as Badis badis siamensis and will be seen labelled as such in older literature. Within the genus it is most easily confused with B. khwae and B. ruber but can be identified by the flank patterning which consists of rows of horizontally-arranged dark markings. In B. ruber these appear mor...

The genus Bagarius is distinguished from all other genera in the putative subfamily Sisoridae by having markedly heterodont teeth in the lower jaw. Teeth are present in two or three outer rows of relatively numerous, close-set conical teeth, and one or two inner rows of less numerous, widely separated, and much larger conical teeth (vs. dentition of the lower jaw consisting of only small conical teeth, or a roughened bony plate).

The vernacular name 'lancer' is derived from the extended dorsal spine possessed by several members of the genus, which currently contains 7 species. Among them B. macracanthus is most similar to B. majusculus and B. vaillantii but can be told apart from the former by possession of shorter pectoral spines (13.3 - 16.2% SL vs. 15.8 - 20.7%), shorter adipose fin (46.0 - 58.0% SL vs. 38.8 - 45.8%), less deep caudal peduncle (7.1 - 7.5% SL vs. 5.6-7.0%) and larger adult size. From B. vaillantii it di...

The vernacular name 'lancer' is derived from the extended dorsal spine possessed by several members of the genus, which currently contains 7 species. Among them B. majusculus is most similar to B. macracanthus and B. vaillantii but can be told apart from both by possession of longer pectoral-fin spines (length 15.8 - 20.7 % SL vs. 11.5 - 16.2 %), from the former by possession of a larger adipose fi...

The vernacular name 'lancer' is derived from the extended dorsal spine possessed by several members of the genus, which currently contains 7 species. B. obscurus is diagnosable from congerners by the following combination of characters: mouth opening relatively small and narrow; oral dentition significantly reduced; dorsal-fin spi...

The genus Barbonymus was erected by Kottelat in 1999 and contains former members of Barbodes from southeast Asia. The type species is B. schwanenfeldii and currently there exist only three other representatives; B. altus, B. collingwoodii and B. gonionotus. The latter two are rare in the hobby although an SF member has kept B. gonionotus in the past so they are worth looking out for if you harbour an...

Prior to description this species was traded under the DATZ code L239. It can be distinguished from other species in the genus and other hypostomines (see below for definition of this grouping) by its uniformly black to brownish body and fin colouration with a turquoise to bluish sheen, and the acutely bent shape of midventral body plates 3-5 which form a distinctive keel running along the body, above the pectoral fins...