mm . ▁The ▁ov ate - con ical ▁shell ▁is ▁vent ric ose . ▁Its ▁color ▁is ▁of ▁a ▁re dd ish ▁white , ▁marked ▁with ▁und ulated ▁brown ▁sp ots ▁with ▁red ▁edges . ▁The ▁e pid erm is ▁has ▁a ▁bright ▁brown ▁color . ▁The ▁shell ▁is ▁very ▁fine ▁and ▁contains ▁very ▁close ▁trans verse ▁st ria e , ▁crossed ▁by ▁very ▁fine ▁and ▁slightly ▁apparent ▁longitud inal ▁st ria e . ▁The ▁sp ire ▁is ▁el ong ated , ▁pointed ▁and ▁contains ▁eight ▁convex ▁wh or ls ▁to ▁the ▁sp ire . ▁These ▁are ▁travers ed ▁sometimes ▁by ▁slightly ▁prominent ▁longitud inal ▁fol ds . ▁The ▁a pert ure ▁is ▁very ▁eff use , ▁dil ated ▁out ward ly ▁and ▁widely ▁em argin ated ▁at ▁its ▁base . ▁The ▁outer ▁lip ▁is ▁strongly ▁ar cu ated . ▁ ▁Distribution ▁This ▁marine ▁species ▁has ▁a ▁wide ▁distribution . ▁It ▁is ▁circ umb ore al ▁and ▁also ▁found ▁off ▁Japan , ▁North ▁America ▁and ▁Western ▁Europe . ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : Bu cc in idae ▁Category : G ast rop ods ▁described ▁in ▁ 1 8 2 4 <0x0A> </s> ▁Ac ro cer c ops ▁un il ine ata ▁is ▁a ▁moth ▁of ▁the ▁family ▁G rac ill ari idae . ▁It ▁is ▁known ▁from ▁Queensland , ▁Australia . ▁ ▁References ▁ ▁un il ine ata ▁Category : M oth s ▁of ▁Australia ▁Category : M oth s ▁described ▁in ▁ 1 8 9 4 <0x0A> </s> ▁The