DiscoverSpeciesOther invertebrates
Didemnum guttatum
- Usual depth0–23 m
- Water temperature27–30 °C
- Best monthsJune
- How commonRare
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 1 records
- February: 0 records
- March: 1 records
- April: 1 records
- May: 1 records
- June: 4 records
- July: 0 records
- August: 0 records
- September: 1 records
- October: 2 records
- November: 0 records
- December: 1 records
Depth and water temperature
Depth
Mostly recorded at 0–23 m · Deepest record: 25 m
Water temperature
Recorded in surface water of 27–30 °C
Names and classification
Similar species
Northern white crustDidemnum albidum
Green Barrel Sea SquirtDidemnum molle
Compound sea squirtDidemnum vexillum

Moseley's AscidianDidemnum moseleyi
Colonial tunicateDidemnum perlucidum
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Conservation status as published by GBIF (IUCN Red List).
- 20 open-data records from 1993 to 2013.
- Species data updated November 2, 2026.
Log what you see on your next dive
The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.