60d_8083 snail query

60d_8083 snail query

Observation - 60d_8083 snail query. Description: Curious shell formation on White lipped snail. It looks as if the shell has perhaps been damaged and then repaired itself but there seems to be an overlap. I only noticed this when I enlarged the photo so no examination was made at the time. Any explanati

Curious shell formation on White lipped snail. It looks as if the shell has perhaps been damaged and then repaired itself but there seems to be an overlap. I only noticed this when I enlarged the photo so no examination was made at the time. Any explanations please.