
Bicolor Dottyback
Pictichromis diadema
- Usual depth13–35 m
- Water temperature28–29 °C
- Best monthsMarch
- How commonRare
Photo credit: (c) Rickard Zerpe, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Pictichromis diadema, the diadem dottyback, is a member of the family Pseudochromidae. These fish are primarily yellow with a purple stripe that runs along the length of their body and back into the dorsal fin.
Text from the Wikipedia article “Pictichromis diadema”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 4 records
- February: 2 records
- March: 17 records
- April: 8 records
- May: 7 records
- June: 8 records
- July: 2 records
- August: 2 records
- September: 2 records
- October: 2 records
- November: 6 records
- December: 6 records
Depth and water temperature
Depth
Mostly recorded at 13–35 m · Deepest record: 35.1 m
Water temperature
Recorded in surface water of 28–29 °C
Photos

(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
Names and classification
- English
- Bicolor Dottyback, Diadem Dottyback, Purple-top Dottyback, Purpletop Dottyback
Names in 1 more languages
- Simplified Chinese
- 准雀鯛, 紅獅公, 紅貓仔, 紫紅背繡雀鯛
Other scientific names: Pseudochromis diadema
Similar species
- Magenta dottyback
Pictichromis porphyrea
AmbeetunbeetCongrogadus subducens
Marshall DottybackPseudochromis marshallensis
- Darkstriped Dottyback
Labracinus cyclophthalmus
- Blue-barred Dottyback
Pseudochromis cyanotaenia
- Brown Dottyback
Pseudochromis fuscus
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).
- 53 open-data records from 1994 to 2016.
- Species data updated October 26, 2026.
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