
Cyerce blackburnae
- Usual depth5–20 m
- Water temperature25–29 °C
- Best monthsMarch, April, and May
- How commonRare
Photo credit: no rights reserved · CC0 1.0 · iNaturalist
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 6 records
- February: 25 records
- March: 27 records
- April: 26 records
- May: 32 records
- June: 16 records
- July: 3 records
- August: 24 records
- September: 10 records
- October: 15 records
- November: 16 records
- December: 10 records
Depth and water temperature
Depth
Mostly recorded at 5–20 m · Deepest record: 20 m
Water temperature
Recorded in surface water of 25–29 °C
Photos

(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
Names and classification
Similar species

Multi-spotted Split-nose Sap-suckerCyerce bourbonica

Tiger Butterfly Sea SlugCyerce nigra
- Elegant Sapsucking Slug
Cyerce elegans
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.
- 40 open-data records from 1988 to 2026.
- Species data updated October 26, 2026.
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