Danio erythromicron Danio erythromicron Danio erythromicron, often known as emerald dwarf rasbora, is a species of cyprinid fish which is endemic to Inle Lake in Myanmar. In 1999, it was suggested that the species be transferred to the genus "Danio" based on morphological data, but it was cautioned that more research would be necessary. A phylogenetic analysis of "Danio" found it indeed close to that genus, but its precise placement was still indeterminable. Shortly thereafter, a new species, "Danio margaritatus", was described under the name "Celestichthys margaritatus". However, this new species was quickly moved into "Danio" following further analysis. Subsequent analysis of
Danio annulosus species of the Danio identified. Just like all the chain danios "Danio annulosus" has chain like pattern instead of the striped patterns of zebra danios. As all the chain danios, Danio annulosus has the same color pattern containing a series of dark rings with light color space beside it, a complete lateral line, 14 circumpendular scales, have the first ray in the pectoral fin and a black humeral spot. "Danio annulosus" is different from the rest of the Puntius species by many features such as a much shorter pecotal and pelvic fins, the humeral spot is a bit wider and