Where does the Arrow worm live?

Eukrohnia hamata has 13,541 records in 25 countries and territories, from 1883 to 2026. Most records come from Svalbard and Jan Mayen.

• 13,541 records
• 25 places
• 89 years recorded
• Sagittoidea class

When it is recorded

Peak month: August. 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 it is recorded