Results for “várzea”

One of the largest freshwater fish species found in Africa, this is not a very good aquarium inhabitant. It is suitable only for the truly dedicated hobbyist able to house it properly or for public aquaria. It can be distinguished from similar members of the genus by its very long adipose fin....

Choice of décor is not especially critical although it tends to show better colouration when maintained in a well-furnished set-up with live plants and a dark substrate. A natural-looking arrangement might consist of a soft, sandy substrate with wood roots and bran...

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'.

This fish has only been traded on a handful of occasions to date. It's been referred to as Lepidocephalichthys cf. hasselti and Lepidocephalus cf. thermalis but appears to be an undescribed member of the former genus. Following a...

Wild populations vary in colour pattern depending on origin, and some populations have previously been described as distinct species. A form from Peru has a particularly silvery body colour, for example, while another, marketed as 'super red' possesses an unusually long red stripe on the body, extending much of the length of the dark central stripe. A population from around Boa Vista in the rio Branco system, Pará state, Brazil has an ocellus o...

This is a truly stunning species that does well in a Tanganyikan community with well-chosen tankmates. It exists in well over 20 colour morphs, too many to list here. Obviously these should not be mixed in aquaria as they will hybridise freely. In nature, it is only the largest dominant males that build nests whilst the subdominant males and females shoal together. The territories of these dominant fish may measure several metres across....

Wild caught specimens of this fish possess a truly amazing set of lips! They are massively enlarged and designed for scraping algae and invertebrates from rock surfaces. In nature, these actually develop in direct proportion to the amount of turbidity in a given locality. Fish inhabiting more turbulent waters have larger lips, as the algae in these areas is anchored to the rocks more firmly. In the aquarium, the lips usually recede or, in tank bred fish, do not develop at all, as they are not re...

A strikingly coloured, if somewhat aggressive fish. Also referred to as the White Cichlid, it is occasionally available in the UK through specialist cichlid dealers.

An attractive, if uncommonly seen cichlid. In common with many Central American cichlids, these fish can pose in a challenge in terms of accomodation and it not uncommon to end up having to house these fish individually. Previously described as cichlasoma regani, it is still occasionally sold under this name.

A hardy and easy to keep cichlid, albeit a moderately aggressive one. Rarely available in aquatic stores, this fish is occasionally available through specialist cichlid dealers.

A. iridescens and its closest relative A. longipinnis can be distinguished from all other barred species of Acrossocheilus by the following characters: wider (vs. narrower) black vertical bars on the flank in adults, each five to eight (vs. no more than four) scales in width; a horse-shoe shaped (vs. arched) mouth gape; rostral barbel located posteriorly (vs. anteriorly) to a horizontal line through the anteriormost margin of the lower jaw; two postlabial grooves extending anteromedially beyond (vs. away from) a horizontal line through the roots of the rostral barbels.

However, according to the identification key of Rema Devi and Indra (2002), the two can be distinguished by a combination of factors as follows: body spots rounded in shape (vs. 'Y' or 'V' shaped in M. herrei); caudal peduncle relatively long (vs. relatively short); anal-fin not reaching base of caudal-fin (vs. anal-fin reaching base of caudal-fin); caudal peduncle with a dark band (vs. caudal peduncle with a dark spot); sub...

This species was considered a colour form of the related Pethia cumingii prior to its description. It can be told apart from P. cumingii by the following combination of characters: maximum standard length 33.6 mm (vs. 41.2 mm); smaller eye diameter (9.8-10.5, vs. 10.8-12.1 % SL); 11+13 (vs. 11+15) vertebrae; cleithrum with a single spine (vs. smooth); proximal arm of fifth ceratobranchial with an oval...

Following Fink (1993), P. piraya can be distinguished from congeners by the following combination of characters: adipose fin with rays in larger specimens (vs. always without rays in other Pygocentrus species); branched dorsal-fin rays 15-18, usually 16 (vs. 14-18, usually 15); usually 7 neural spines anterior to first pterygiophore (vs. usually 6); vertebrae 36-39, usually 38 (vs. 35-38, usually 36). It can also be identified by colour pattern since it possesses distinctive bright yellow-orange pigmentation on the lower jaw, opercle and lateral body in life.

This species is sometimes traded under the names 'mini chocolate gourami', 'Burmese chocolate gourami' or mislabelled as the congener P. ocellatus, these two currently comprising the only known members of the genus. P. lineatus can be told apart from P. ocellatus via the following combination of characters: smaller body size (maximum standard length 18.7 mm vs. 32.0 mm); absence of ocellus-type marking in middle of each flank (vs. presence); presence of dark, stripe (vs. abs...

The genus Amblypharyngodon currently contains five valid species, and A. chulabhornae can be distinguished from congeners by the following combination of characters: 42-50 (vs. 50-79) scales in the lateral row; lateral line incomplete with 6-7 (vs. 7-23) perforated scales; 4-5 scales on a transverse row between the lateral line and pelvic-fin base. All members of the genus lack barbels.

This species is also referred to by the vernacular name 'Malay combtail'. In terms of external characters it differs most obviously from its only congener, B. signata by its overal brownish grey (vs. reddish) body colouration and presence of a mosaic-type patterning in the unpaired fins (vs. absence). The position of relatedness of the genus Belontia with respect to other anabantoids remains somewhat...

This species is also traded/referred to by the vernacular name 'Ceylon fighting fish'. It differs from its only congener, B. hasselti, by its overall reddish (vs. brownish-grey) body colouration, and absence (vs. presence) of a mosaic-like patterning in the unpaired fins. At least three putative phenotypes have been recorded. The nominative, and commonest, mostly inhabits clear streams in rainier zones...

Restricted to remnant blackwater habits in heavily-disturbed areas of former peat swamp forest, the original vegetation having been cleared to make space for plantations of oil pal, pineapple and rubber. It's now typically found among overhanging marginal vegetation of irrigation canals, with sympatric species including Belontia hasseltii, Betta bellica, B. imbellis, Sphaerichthys osphromenoides, Parosphromenus sp., and Trichopsis vittata. PH in its natural waters has been recorded over the range 3.9 - 4.2.

This species is traded under various names such as 'red melon Dario' or 'flame red Dario'. Among congeners D. dayingensis is most similar since it differs only in a few meristic counts and by its slightly larger adult size. D. hysginon can be told apart by possessing 22-24, usually 23, lateral scales (vs. 24-25 in D. dayingensis), 8½ (vs. 9½) scales in the transverse scale row, a...