▁D unker , ▁ 1 8 7 1 : ▁syn onym ▁of ▁E tre ma ▁den sep lic ata ▁( D unker , ▁ 1 8 7 1 ) ▁ ▁Dr ill ia ▁detect a ▁( D all , ▁ 1 8 8 1 ): ▁syn onym ▁of ▁Ple uro tom ella ▁circum vol uta ▁( W at son , ▁ 1 8 8 1 ) ▁ ▁Dr ill ia ▁d ile ct a ▁Hed ley , ▁ 1 9 0 3 : ▁syn onym ▁of ▁Tom ople ura ▁d ile ct a ▁( H ed ley , ▁ 1 9 0 3 ) ▁ ▁Dr ill ia ▁dim idi ata ▁G . ▁B . ▁S ower by ▁III , ▁ 1 8 9 6 : ▁syn onym ▁of ▁Aust rod r ill ia ▁dim idi ata ▁( G . ▁B . ▁S ower by ▁III , ▁ 1 8 9 6 ) ▁ ▁Dr ill ia ▁disc ors ▁G . B . ▁S ower by ▁I , ▁ 1 8 3 4 : ▁syn onym ▁of ▁Cr ass is pi ra ▁disc ors ▁( S ower by ▁I , ▁ 1 8 3 4 ) ▁▁ ▁Dr ill ia ▁dis ject a ▁( Smith , ▁E . A ., ▁ 1 8 8 8 ): ▁syn onym ▁of ▁S pl end r ill ia ▁dis ject a ▁( E . ▁A . ▁Smith , ▁ 1 8 8 8 ) ▁▁ ▁Dr ill ia ▁distinct a ▁Th iele ▁J ., ▁ 1