▁to ▁T umb ling ▁Creek ▁C ave , ▁a ▁National ▁Natural ▁Land mark , ▁in ▁Tan ey ▁County , ▁Missouri , ▁USA . ▁ ▁Tax onomy ▁ ▁The ▁T umb ling ▁Creek ▁c aves n ail ▁was ▁described ▁as ▁a ▁new ▁species ▁by ▁Les lie ▁Hub richt ▁in ▁ 1 9 7 1 , ▁from ▁spec im ens ▁taken ▁by ▁David ▁C ul ver , ▁Thomas ▁A ley , ▁and ▁Hub richt ▁in ▁ 1 9 6 9 ▁and ▁ 1 9 7 0 . ▁Ant rob ia ▁cul ver i ▁is ▁the ▁type ▁species ▁for ▁the ▁genus ▁Ant rob ia , ▁also ▁described ▁as ▁new ▁to ▁science ▁in ▁ 1 9 7 1 ▁by ▁Hub richt . ▁ ▁H ers h ler ▁and ▁Hub richt ▁( 1 9 8 8 ) ▁exam ined ▁spec im ens ▁of ▁Ant rob ia ▁cul ver i ▁and ▁confirmed ▁the ▁tax onom ic ▁pla cement ▁of ▁this ▁species ▁at ▁that ▁time ▁in ▁the ▁sub family ▁L itt or id in inae . ▁They ▁also ▁noted ▁the ▁similarity ▁of ▁the ▁genus ▁Ant rob ia ▁to , ▁but ▁distinguished ▁it ▁from , ▁the ▁genus ▁Font ig ens , ▁which ▁contains ▁cave - ada pt ed ▁sn ails ▁found ▁in ▁other ▁c aves ▁and ▁spr ings ▁of ▁the ▁O z ark ▁Pl ate au ▁in ▁Missouri ▁and ▁Ark ansas . ▁ ▁Description ▁ ▁The ▁T umb ling ▁Creek ▁c aves n ail ▁is ▁a ▁small , ▁white , ▁blind , ▁aqu atic ▁sn ail . ▁ ▁The ▁shell ▁is