Black-tailed Sergeant-major
Abudefduf lorenzi
- Usual depth1–2 m
- Water temperature28–30 °C
- Best monthsFebruary, April, and July
- How commonRare
Photo credit: (c) Nicola Crockford, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Abudefduf lorenzi, commonly known as the black-tail sergeant, is a species of damselfish in the family Pomacentridae. It is native to the tropical western Pacific Ocean, where it ranges from the Philippines and the Maluku Islands to the Solomon Islands and Palau.
Text from the Wikipedia article “Abudefduf lorenzi”, 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: 16 records
- February: 24 records
- March: 18 records
- April: 38 records
- May: 13 records
- June: 13 records
- July: 24 records
- August: 17 records
- September: 11 records
- October: 23 records
- November: 23 records
- December: 14 records
Depth and water temperature
Depth
Mostly recorded at 1–2 m · Deepest record: 2.3 m
Water temperature
Recorded in surface water of 28–30 °C
Photos
(c) Ditch Townsend, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist 
(c) Nicola Crockford, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Greg III Espera, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ditch Townsend, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
Names and classification
- English
- Black-tailed Sergeant-major, Black-tail Sergeant, Blacktail Sergeant
Names in 3 more languages
- Spanish
- Sargento Mayor de Lorenzo
- Japanese
- Rorentsusuzumedai, ローレンツスズメダイ
- Simplified Chinese
- 勞倫氏豆娘魚, 勞倫氏雀鯛, 勞氏豆娘魚, 厚殼仔
Other scientific names: Abudefduf lorentzi
Similar species
Cow pilotAbudefduf saxatilis
Scissortail sergeantAbudefduf sexfasciatus
Indo-Pacific sergeantAbudefduf vaigiensis
Bengal SergeantAbudefduf bengalensis
Banded sergeantAbudefduf septemfasciatus
Blackspot sergeantAbudefduf sordidus
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).
- 85 open-data records from 1929 to 1981.
- Species data updated October 26, 2026.
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