et ia ▁m ab ille i , ▁and ▁ ▁Per rott et ia ▁sim onian us ), ▁Per rott et ia ▁h ong th inha e ▁has ▁a ▁relatively ▁smaller ▁shell , ▁and ▁the ▁profiles ▁of ▁the ▁shell ▁base ▁are ▁quite ▁different ▁in ▁all ▁five ▁species . ▁ ▁The ▁Per rott et ia ▁h ong th inha e ▁diff ers ▁from ▁Per rott et ia ▁un ident ata ▁in ▁its ▁smooth ▁shell ▁surface , ▁smaller ▁size , ▁and ▁in ▁having ▁a ▁rect angular ▁a pert ure ▁with ▁rounded ▁angles . ▁ ▁E col ogy ▁This ▁species ▁inhab its ▁lim estone ▁for ests ▁at ▁ 1 , 2 2 6 ▁m ▁a . s . l . ▁ ▁Species ▁in ▁the ▁genus ▁Per rott et ia ▁are ▁car n iv orous . ▁ ▁References ▁This ▁article ▁includes ▁CC - BY - 4 . 0 ▁text ▁from ▁the ▁reference ▁ ▁External ▁links ▁ ▁Category : St re pt ax idae ▁Category : G ast rop ods ▁described ▁in ▁ 2 0 1 7 <0x0A> </s> ▁P engu ins ▁of ▁Mad agas car , ▁released ▁on ▁home ▁video ▁as ▁P engu ins ▁of ▁Mad agas car : ▁The ▁Movie , ▁is ▁a ▁ 2 0 1 4 ▁American ▁computer - anim ated ▁sp y ▁action ▁comedy ▁film ▁produced ▁by ▁Dream Work s ▁An imation ▁and ▁distributed ▁by ▁ 2 0 th ▁Century ▁Fox . ▁It ▁is ▁a ▁spin - off ▁of ▁the ▁Mad agas car ▁film ▁series , ▁and ▁takes ▁place ▁right ▁after ▁the ▁events ▁of