ing ▁land ▁sn ail , ▁a ▁terrest rial ▁pul mon ate ▁g ast rop od ▁m oll usk ▁in ▁the ▁family ▁A chat in ell idae . ▁This ▁species ▁is ▁en demic ▁to ▁the ▁Hawai ian ▁island ▁of ▁O ahu ▁in ▁the ▁United ▁States . ▁No ▁more ▁than ▁five ▁spec im ens ▁have ▁been ▁observed ▁since ▁ 1 9 7 9 . ▁ ▁References ▁ ▁bell ula ▁Category : Bi ota ▁of ▁O ahu ▁Category : M oll us cs ▁of ▁Hawai i ▁Category : End em ic ▁fa una ▁of ▁Hawai i ▁Category : C rit ically ▁end anger ed ▁fa una ▁of ▁the ▁United ▁States ▁Category : T ax onomy ▁articles ▁created ▁by ▁Pol bot ▁Category : ES A ▁end anger ed ▁species <0x0A> </s> ▁En closed ▁cre m ation ▁c emetery ▁is ▁a ▁term ▁used ▁by ▁arch ae olog ists ▁to ▁describe ▁a ▁type ▁of ▁c emetery ▁found ▁in ▁north ▁western ▁Europe ▁during ▁the ▁late ▁Ne ol ith ic ▁and ▁early ▁Bron ze ▁Age . ▁They ▁are ▁similar ▁to ▁ur n field ▁bur ial ▁grounds ▁in ▁that ▁they ▁consist ▁of ▁a ▁concentration ▁of ▁p its ▁containing ▁cre m ated ▁remains ▁which ▁have ▁usually ▁also ▁been ▁placed ▁into ▁pot tery ▁vessels . ▁However ▁they ▁are ▁also ▁surrounded ▁by ▁a ▁circular ▁or ▁o val ▁bank ▁and ▁outer ▁d itch ▁which ▁gives ▁them ▁their ▁name . ▁The ▁most ▁famous ▁example ▁is ▁Stone hen ge ▁which ▁function ed ▁as ▁such ▁a ▁c emetery ▁during ▁its ▁early ▁use ▁when ▁it ▁was ▁a ▁simple ▁earth work