▁and ▁business ▁man . ▁His ▁son , ▁Sh int ar ō ▁Hir ase , ▁( 1 8 8 4 - 1 9 3 9 ) ▁was ▁also ▁a ▁mal ac ologist . ▁ ▁The ▁majority ▁of ▁his ▁collection ▁of ▁m oll us cs ▁were ▁destroyed ▁during ▁World ▁War ▁II . ▁ ▁Y o ich ir ō ▁greatly ▁contributed ▁to ▁the ▁start ▁of ▁mal ac ology ▁in ▁Japan ▁and ▁was ▁responsible ▁for ▁the ▁collection ▁and ▁indirect ly ▁the ▁naming ▁of ▁many ▁land ▁and ▁marine ▁m oll us ks . ▁Re ver ed ▁by ▁mal ac olog ists ▁throughout ▁the ▁world ▁for ▁his ▁enthus ias m ▁and ▁contributions ▁to ▁mal ac ology , ▁he ▁has ▁numerous ▁species ▁named ▁after ▁him . ▁ ▁Y o ich ir ō ▁lived ▁from ▁ 1 8 5 9 ▁until ▁ 1 9 2 5 . ▁  ▁He ▁was ▁a ▁wealth y ▁Ky ō to ▁deal er ▁in ▁p oul try , ▁se eds , ▁and ▁av icult ure ▁products ▁who ▁had ▁founded ▁a ▁side ▁business ▁trad ing ▁in ▁marine ▁and ▁land ▁shell s .[ 1 ]   ▁He ▁began ▁to ▁collect ▁shell s ▁in ▁ 1 8 9 8 ▁at ▁age ▁ 3 9 .   ▁Over ▁the ▁next ▁ 2 0 ▁years , ▁his ▁collection ▁grew ▁to ▁about ▁ 3 , 0 0 0 ▁Japanese ▁spec im ens ▁and ▁ 4 , 5 0 0 ▁foreign ▁spec im ens .   ▁He ▁coordin ated ▁numerous ▁field ▁collect ors ▁to ▁explore ▁the ▁territ ories ▁and ▁pre fect ures ▁of