for ate ▁base ▁of ▁the ▁shell ▁is ▁full ▁and ▁rounded . ▁The ▁a pert ure ▁is ▁rounded , ▁pointed ▁behind , ▁and ▁the ▁angle ▁is ▁filled ▁with ▁call us . ▁This ▁call us ▁is ▁continuous ▁and ▁is ▁the ▁th inn est ▁on ▁the ▁col um ella . ▁ ▁Distribution ▁This ▁species ▁occurs ▁in ▁the ▁G ulf ▁of ▁Mexico ▁and ▁in ▁the ▁Car ib bean ▁Sea ; ▁in ▁the ▁Atlantic ▁Ocean ▁off ▁North ▁Carolina , ▁USA . ▁ ▁References ▁ ▁External ▁links ▁ ▁compact us ▁Category : G ast rop ods ▁described ▁in ▁ 1 8 8 9 <0x0A> </s> ▁China ▁Smith ▁was ▁a ▁ 1 9 5 0 s ▁television ▁advent ure ▁series ▁st arring ▁Dan ▁D ury ea . ▁ ▁The ▁television ▁show ▁takes ▁place ▁in ▁Singapore . ▁ ▁Much ▁of ▁the ▁cast ▁and ▁crew ▁also ▁worked ▁on ▁the ▁film ▁World ▁for ▁R ans om , ▁which ▁is ▁considered ▁an ▁extension ▁of ▁the ▁television ▁program . ▁ ▁Director ▁Robert ▁Ald rich ▁had ▁also ▁directed ▁two ▁episodes ▁of ▁the ▁series . ▁ ▁The ▁title ▁character ▁was ▁a ▁soldier ▁of ▁fortune ▁we aring ▁a ▁white ▁suit ▁and ▁pan ama ▁hat ▁living ▁in ▁Singapore ▁who ▁would ▁face ▁danger ▁and ▁excitement ▁every ▁week . ▁ ▁The ▁series ▁was ▁made ▁with ▁a ▁two - year ▁gap ; ▁the ▁first ▁ 2 6 ▁episodes ▁being ▁fil med ▁in ▁Mexico , ▁the ▁second ▁ 2 6 ▁episodes ▁were ▁shot ▁in ▁ 1 9 5 4 - 1 9 5 5 . ▁ ▁In ▁ 1 9 5 9 ▁D