Where has the Craniella cranium been recorded?

Craniella cranium occurrence evidence comes from 157 records in 14 countries and territories, from 1868 to 2019. Most records come from United States.

• 157 records
• 14 places
• 24 years recorded
• Demospongiae class

Observation evidence passport

Compare this animal’s observation pattern

When it is recorded

Peak month: June. 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 Craniella cranium has been recorded

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