▁small , ▁con ical , ▁well - r ounded ▁and ▁pale - yellow ▁with ▁about ▁ 3 . 5 ▁wh or ls . ▁The ▁dimensions ▁of ▁the ▁type ▁spec imen ▁are ▁as ▁follows : ▁height ▁ 2 . 3 ▁mill im eters ▁( mm ) ▁( 0 . 0 9   in ches ); ▁diameter ▁ 2 . 0   mm ▁( 0 . 0 8   in ); ▁a pert ure ▁height ▁ 1 . 2   mm ▁( 0 . 0 5   in ); ▁a pert ure ▁diameter ▁ 1 . 1   mm ▁( 0 . 0 4   in ). ▁ ▁Distribution ▁▁ ▁Ant rob ia ▁cul ver i ▁is ▁an ▁en demic ▁species , ▁part ▁of ▁the ▁wild life ▁of ▁Missouri , ▁United ▁States . ▁ ▁Its ▁distribution ▁is ▁restricted ▁to ▁a ▁single ▁cave ▁stream ▁in ▁T umb ling ▁Creek ▁C ave , ▁in ▁Tan ey ▁County , ▁in ▁south western ▁Missouri . ▁ ▁E col ogy ▁ ▁Hab itat ▁ ▁This ▁sn ail ▁is ▁an ▁animal ▁which ▁lives ▁in ▁c aves , ▁thus ▁it ▁is ▁a ▁tro glob ite . ▁In ▁addition ▁it ▁is ▁an ▁aqu atic ▁tro glob ite , ▁and ▁animals ▁who ▁live ▁in ▁this ▁special ized ▁kind ▁of ▁habitat ▁are ▁known ▁as ▁st yg ob ites ▁or ▁st yg of a una . ▁ ▁The ▁T umb ling ▁Creek ▁c aves n ail ▁lives ▁on ▁the ▁unders ide ▁of ▁rocks ▁in ▁areas ▁of ▁T umb ling ▁Creek ▁that ▁have ▁little ▁or ▁no ▁s