Where has the Bylgides sarsi been recorded?

Bylgides sarsi occurrence evidence comes from 1,130 records in 11 countries and territories, from 1872 to 2024. Most records come from Sweden.

• 1,130 records
• 11 places
• 60 years recorded
• Polychaeta 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 Bylgides sarsi has been recorded

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