yp orth od us ▁qu ern us , ▁formerly ▁ ▁Ep ine ph el us ▁qu ern us ) ▁is ▁a ▁species ▁of ▁marine ▁fish , ▁Hyp orth od us ▁qu ern us ; ▁family ▁Ep ine ph el idae , ▁Ser ran idae . ▁It ▁is ▁a ▁large ▁in quis itive ▁inhab it ant ▁en demic ▁to ▁the ▁Hawai ian ▁Arch ip el ago ▁, ▁the ▁Hawai ian ▁Island ▁chain ▁from ▁Hawai i ▁Island ▁to ▁K ure ▁At oll ▁including ▁the ▁area ▁se amount s , ▁( most ▁common ▁around ▁North west ▁Hawai ian ▁Islands , ▁Mid way ▁and ▁K ure ▁At oll ) ▁and ▁John ston ▁Island . ▁It ▁is ▁ind igen ous ▁and ▁can ▁only ▁be ▁found ▁in ▁this ▁region . ▁ ▁The ▁Hawai ian ▁gr ou per ▁pre fers ▁deep ▁cool ▁waters ▁and ▁has ▁been ▁sight ed ▁at ▁ 3 8 0   ft ., ▁however ▁have ▁been ▁found ▁from ▁depth s ▁of ▁ 3 0 0 ' ▁to ▁ 9 0 0 '. ▁Its ▁preferred ▁habit ats ▁are ▁deep ▁water ▁re ef s ▁and ▁rock y ▁led ges ▁where ▁it ▁can ▁hide ▁in ▁cre v ass es ▁and ▁out cro ppings . ▁It ▁is ▁chrom at op hor ous , ▁which ▁means ▁it ▁can ▁change ▁its ' ▁skin ▁color ▁to ▁adapt ▁to ▁match ▁its ' ▁environment . ▁Most ▁H ap u ' up u ' u ▁are ▁black ▁with ▁small ▁white ▁" s now f la ke " ▁sp ots , ▁however ▁they ▁can ▁be ▁dark ▁re dd