▁Pro cal p urn us ▁sem ist ri atus ▁is ▁a ▁species ▁of ▁sea ▁sn ail , ▁a ▁marine ▁g ast rop od ▁m oll usk ▁in ▁the ▁family ▁O v ul idae , ▁the ▁ov ul ids , ▁cow ry ▁al lies ▁or ▁false ▁cow ries . ▁ ▁Description ▁ ▁Distribution ▁ ▁References ▁▁ ▁Pe ase ▁W . ▁H . ▁( 1 8 6 3 ). ▁Description ▁of ▁new ▁species ▁of ▁marine ▁shell s ▁from ▁the ▁Pacific ▁Islands . ▁Pro ceed ings ▁of ▁the ▁Zo ological ▁Society ▁of ▁London . ▁( 1 8 6 2 ): ▁ 2 4 0 – 2 4 3 . ▁ ▁C ate , ▁C . ▁N . ▁ 1 9 7 3 . ▁A ▁system atic ▁revision ▁of ▁the ▁recent ▁C yp ra e id ▁family ▁O v ul idae . ▁Vel iger ▁ 1 5 ▁( supp lement ): ▁ 1 – 1 1 7 . ▁ ▁Lor enz ▁F . ▁& ▁Fe h se ▁D . ▁( 2 0 0 9 ) ▁The ▁living ▁O v ul idae . ▁A ▁manual ▁of ▁the ▁families ▁of ▁al lied ▁cow ries : ▁O v ul idae , ▁P edic ular i idae ▁and ▁E oc yp ra e idae . ▁H ack en heim : ▁Con ch books . ▁ ▁External ▁links ▁ ▁Category : O v ul idae ▁Category : G ast rop ods ▁described ▁in ▁ 1 8 6 2 <0x0A> </s> ▁D arr in ▁Earl ▁Ch ia ver ini ▁( born ▁October ▁