Melanotaenia senckenbergiana (Weber, 1911)
Senckenberg rainbowfish

Family:  Melanotaeniidae (Rainbowfishes, blue eyes)
Max. size:  6.35 cm SL (male/unsexed); 6.81 cm SL (female)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Trangan Island and Kobroor Island in Aru Islands, Indonesia.
Diagnosis:  Dorsal spines (total): 4-6; Dorsal soft rays (total): 11-15; Anal spines: 1-1; Anal soft rays: 20-23. Melanotaenia senckenbergianus is distinguished by the following combination of characters: IV-VI-I,11-15 (usually VVI- I,12-13) dorsal-fin rays; I,20-23 (rarely 23) anal-fin rays; 13-15 (usually 14) pectoral-fin rays; 34-36 scales on lateral line; 16-19 (rarely 19) predorsal scales; 15-24 (average 19.6) cheek scales; 17-18 total gill rakers on first arch; greatest body depth of adult male 35.9 % SL; color in life generally greenish brown dorsally, grading to silvery white to pale yellow ventrally with midlateral, dark blue stripe, 1-2 scale rows wide, extending from rear margin of eye to caudalfin base, usually faint or interrupted on middle of side; operculum with prominent red spot, smaller than pupil (Ref. 110723).
Biology:  Inhabits creeks and small rivers flowing through primary rainforest and second growth forest and gardens, as well as tree-lined creeks in relatively open savannah. Syntopic with either Melanotaenia albimarginata, M. aruensis, or M. patoti as well as other fishes such as Craterocephalus, Mogurnda, Glossamia, and Glossogobius (Ref. 110723).
IUCN Red List Status: Least Concern (LC); Date assessed: 03 December 2019 Ref. (130435)
Threat to humans:  harmless


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