Dario melanogrammus
Dario melanogrammus Britz, Kullander & Rüber, 2022

Family:  Badidae (Chameleonfishes)
Max. size:  2.19 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Myanmar.
Diagnosis:  Dorsal spines (total): 14-16; Dorsal soft rays (total): 6-9; Anal spines: 3-3; Anal soft rays: 7-9; Vertebrae: 25-27. This small badid species, barely exceeding 2.0 cm SL, is distinguished from its congeners by the following characters: zigzagging bars, which are formed by darkly pigmented posterior scale margins involving usually three scale rows; among Myanmar species of Dario, further differs from D. hysginon and D. tigris by having more vertebrae modally 26 (vs. 25 in D. hysginon, 24 in D. tigris) and a genetic divergence of 15.6-19.0 % uncorrected p-distance in the COI gene (Ref. 137632).
Biology:  This species was collected from several localities along the Chindwin in the vicinity of Homalin, Htamanthi and Hkamti. At the type locality in Tarwa Chaung near Homalin, the water had a temperature of 24 °C, a pH of 6.7 and a conductivity of 20 μS on 23 Feb 2013;. There were no aquatic vegetation and the bottom was muddy with sand and gravel. Associated fish species co-occuring with this species include the following: Acanthocobitis rubidipinnis, Amblyceps sp., Badis ferrarisi, B. kyar, Channa sp., Danio htamanthinus, Danio sp., Devario annandalei, Esomus sp., Laubuka khujairokens, Lepidocephalichthys berdmorei, Mystus pulcher, Ompok sp., Olyra sp., Opsarius sp., Pethia thelys, P. meinganbii, Puntius chola, Rasbora ornata, R. daniconius, Schistura sp., and Trichogaster labiosa (Ref. 137632).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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