ClipArt ETC
"Helix albolabris, a pulmonate Gasteropod." -Galloway, 1915

Helix Albolabris

"Helix albolabris, a pulmonate Gasteropod." -Galloway, 1915

"Vertical section of the shell of a species of Helix. M., Mouth of shell; A., apex; C., columella." -Thomson, 1916

Shell

"Vertical section of the shell of a species of Helix. M., Mouth of shell; A., apex; C., columella."…