▁car ang id ▁species . ▁It ▁pre ys ▁on ▁a ▁range ▁of ▁small ▁fish , ▁cr ust ace ans ▁and ▁ce phal op ods , ▁but ▁little ▁is ▁known ▁of ▁its ▁re product ive ▁bi ology . ▁The ▁imp oster ▁tre v ally ▁is ▁of ▁minor ▁importance ▁to ▁fish eries ▁throughout ▁its ▁range , ▁taken ▁by ▁hook ▁and ▁line , ▁bottom ▁tra w ls ▁and ▁several ▁types ▁of ▁art is anal ▁g ear . ▁ ▁Tax onomy ▁and ▁naming ▁The ▁imp oster ▁tre v ally ▁is ▁class ified ▁within ▁the ▁genus ▁Car ango ides , ▁one ▁of ▁a ▁number ▁of ▁groups ▁of ▁fish ▁referred ▁to ▁as ▁j acks ▁and ▁tre val lies . ▁ ▁Car ango ides ▁falls ▁into ▁the ▁jack ▁and ▁horse ▁m acker el ▁family ▁Car ang idae , ▁the ▁Car ang idae ▁are ▁part ▁of ▁the ▁order ▁Car ang iformes . ▁ ▁The ▁species ▁was ▁first ▁scientific ally ▁described ▁by ▁the ▁Dutch ▁ich thy ologist ▁Pi eter ▁Ble ek er ▁in ▁ 1 8 5 2 ▁based ▁on ▁the ▁hol ot ype ▁spec imen ▁taken ▁from ▁western ▁Sum atra ▁in ▁Indones ia . ▁Ble ek er ▁named ▁this ▁new ▁species ▁Car ango ides ▁tal am par o ides , ▁with ▁the ▁specific ▁ep ith et ▁having ▁a ▁slightly ▁ambigu ous ▁meaning . ▁Tal am ▁is ▁a ▁length ▁measurement ▁sp anning ▁the ▁length ▁of ▁the ▁thumb ▁to ▁little ▁finger , ▁par ▁is ▁Greek ▁for ▁' equal ' ▁and ▁o ides ▁transl ates ▁to ▁' like ' ▁- ▁possibly ▁indicating ▁the ▁small