▁Japan ▁gather ing ▁both ▁land ▁and ▁marine ▁m oll us ks .   ▁Many ▁of ▁the ▁species ▁found ▁by ▁his ▁team ▁were ▁newly ▁discovered ▁and ▁named ▁in ▁collaboration ▁with ▁many ▁scient ists ▁around ▁the ▁world , ▁including ▁H . A . ▁P ils b ry , ▁P . ▁Ehr mann , ▁G . K . ▁G ude , ▁C . F . ▁An ce y , ▁and ▁G . B . ▁S ower by . ▁ ▁Y o ich ir ō ▁was ▁the ▁ment or ▁of ▁Tok ube i ▁K uro da , ▁another ▁for ef ather ▁of ▁Japanese ▁mal ac ology .   ▁K uro da ▁got ▁his ▁start ▁in ▁mal ac ology ▁under ▁the ▁employ ▁of ▁Y o ich iro ▁at ▁age ▁ 1 5 .   ▁K uro da ’ s ▁employ ment ▁initially ▁included ▁clean ing ▁Hir ase ' s ▁large ▁house ▁and ▁looking ▁after ▁his ▁children ▁by ▁day . ▁Hir ase ▁paid ▁for ▁K uro da ▁to ▁attend ▁night ▁school ▁and ▁to ▁learn ▁English , ▁at ▁which ▁he ▁excel led , ▁and ▁arranged ▁for ▁him ▁to ▁learn ▁the ▁bas ics ▁of ▁system atic ▁bi ology . ▁A ▁rapid ▁lear ner ▁and ▁dil igent ▁cl erk , ▁K uro da ▁was ▁soon ▁placed ▁in ▁charge ▁of ▁the ▁shell ▁business , ▁and ▁became ▁Hir ase ' s ▁secretary . ▁He ▁was ▁instrument al ▁in ▁the ▁found ing ▁and ▁operation ▁of ▁Hir ase ' s ▁Con ch ological ▁Museum ▁( 1 9 1 3 - 1 9 1 9 ), ▁which