Devario xyrops Fang & Kullander 2009

Diagnosed from all congeners except Devario anomalus by its the color pattern, with a dark blotch anteriorly on the side composed of 4-5 short partly confluent vertical bars which may also be confluent to form a homogeneous blotch, and a wide dark horizontal band (P stripe) posteriorly on the side. Differs from Devario anomalus by proportional measurements and meristics, most important by deeper body (29.9-35.,8% SL, vs. 25.0-26.8 % SL) and fewer lateral line scales (31-33, modally 32 vs. 33-35, modally 34). In addition, the presence of an infraorbital process separates this species from all barred species of Devario (Ref. 81819).Description: Dorsal-fin rays iii.10½ , iii.11½, iii.12½; anal-fin rays iii.13½, iii.14½, iii.15½; pectoral-fin rays i.11, i.12, i.13; pelvic-fin rays i.6, i.7 (Ref. 81819)..

Dorsal soft rays (total): 14 - 16; Analsoft rays: 17 - 19; Vertebrae: 34 - 35

The type locality is a small forest river with clear, colorless and slow-flowing or stagnant water and with bottom made up of stones, gravel and rock (Ref. 81819). During low water season, this forest river is reduced to a series of connected pools, up to 2 m wide, and not more than 1 m deep (Ref. 81819).

The blue moon danio (Devario xyrops) is a species of cyprinid fish endemic to Myanmar. First described in 2009, they are found in small forested streams on the western slope of the Arakan Mountains in Rakhine State of south-western Myanmar; these streams are typically reduced to a series of interconnected pools during the dry season. This species has also been imported to Europe as an aquarium fish with the code names “TW02” and “Broken Line”.