
Diagramma melanacrum
- Usual depth9–11 m
- Water temperature28–29 °C
- Best monthsSeptember
- How commonRare
Photo credit: (c) Pierre Pericard, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
The blackfin slatey, also known as blackfoot sweetlips, blackfin sweetlips or blacktip sweetlips, is a species of marine ray-finned fish, a sweetlips belonging to the family Haemulidae. It is found in the eastern Indian Ocean and the western central Pacific Ocean.
Text from the Wikipedia article “Blackfin slatey”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 9 records
- February: 5 records
- March: 7 records
- April: 7 records
- May: 8 records
- June: 9 records
- July: 5 records
- August: 5 records
- September: 16 records
- October: 9 records
- November: 5 records
- December: 9 records
Depth and water temperature
Depth
Mostly recorded at 9–11 m · Deepest record: 10.5 m
Water temperature
Recorded in surface water of 28–29 °C
Photos

(c) Ro Hill, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Roger Rittmaster, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Pierre Pericard, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ditch Townsend, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Ditch Townsend, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ben Costamagna, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
Names in 1 more languages
- Japanese
- Hiregurokorodai, ヒレグロコロダイ
Other scientific names: Diagramma melanacra
Similar species
GruntDiagramma pictum
Blackall SweetlipsDiagramma labiosum
Clown SweetlipsPlectorhinchus chaetodonoides
Harry HotlipsPlectorhinchus gibbosus
Blackstriped SweetlipsPlectorhinchus lineatus
painted sweetlipPlectorhinchus pica
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.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 41 open-data records from 1979 to 2013.
- Species data updated November 2, 2026.
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