Where has the The eight-whorled Achatina been recorded?

Subulina octona occurrence evidence comes from 709 records in 57 countries and territories, from 1889 to 2025. Most records come from Costa Rica.

• 709 records
• 57 places
• 73 years recorded
• Gastropoda class

Observation evidence passport

Compare this animal’s observation pattern

When it is recorded

Peak month: May. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.

Records over time

Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.

Where The eight-whorled Achatina has been recorded

The countries below show where occurrence evidence exists for The eight-whorled Achatina. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.

Showing the top 40 of 57 places.