Cairnsichthys rhombosomoides (Nichols & Raven, 1928)
Cairns rainbowfish

Family:  Melanotaeniidae (Rainbowfishes, blue eyes)
Max. size:  8.5 cm SL (male/unsexed); 6.5 cm SL (female)
Environment:  demersal; freshwater; pH range: 7.19999980926514 - 7.59999990463257; dH range: 10
Distribution:  Oceania: endemic to Australia.
Diagnosis:   
Biology:  Occurs in small rainforest creeks usually in hilly terrain with alternating sections of rapids and rocky pools varying in depth from several centimeters to one to three meters. Bottom composed of boulders, cobbles and gravel with minimal plant growth. In spite of the limited distribution its future seems secure as long as the rainforest habitat of the Bellenden Ker Range is protected. Much of this area lies within a national park (Ref. 44894).
IUCN Red List Status: Endangered (EN); Date assessed: 15 February 2019 (B1ab(i,ii,iii)+2ab(i,ii,iii)) Ref. (130435)
Threat to humans:  harmless


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