Results for “clade”
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Tellia apodaFootless Toothcarp
Gervais, 1853
Max length45mm SL1.8in SLTank120 × 30cm48 × 12inTemp16–30°C61–86°FpH7.0–9.0The genus Aphanius currently contains 22 species and subspecies which are thought to have derived from a common ancestor originally distributed around the periphery of the former Tethys Sea. These can be separated into two main phylogenetic groups usually referred to as the 'eastern' and 'western' clades by scientists and aquarists because they broadly correspond to those coastlines of the Tethys. The eastern clade comprises the species now found in the Arabian Peninsula and ...
Acheilognathus macropterusGiant Chinese Bitterling
Bleeker, 1871
Max length275mm SL11in SLTank180 × 60cm72 × 24inTemp14–22°C57–72°FpH6.0–8.0A. macropterus appears in the ornamental trade on an irregular basis and should only be considered by more experienced aquarists with sufficiently large facilities. Given its wide geographical distribution there is a possibility that it represents a group of closely-related species, with genetic studies indicating the existence of several distinct clades.
Chela cachiusNeon Hatchet Fish
Hamilton, 1822
Max length50mm SL2.0in SLTank90 × 30cm36 × 12inTemp18–24°C64–75°FpH6.0–8.0It is currently the only valid member of the genus but it is possible that additional taxa exist, particularly in Myanmar, while a number of former species are contained within the Laubuka assemblage, to which C. cachius is closely related. Phylogenetic studies suggest the existence of a monophyletic clade consisting of the genera Devario, Chela, Laubuca, Microdevario and Microrasbora plus the genus Betadevario.