Nemanthias bicolor

About this species

Nemanthias bicolor, the bicolor anthias or yellowback basslet, is a species of marine ray-finned fish in the family Serranidae, the groupers and sea basses. It is from the Indo-Pacific Ocean. It occasionally makes its way into the aquarium trade. It grows to a size of 13 cm in length.

Text from the Wikipedia article “Nemanthias bicolor”, 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: 3 records
February: 5 records
March: 8 records
April: 19 records
May: 11 records
June: 26 records
July: 28 records
August: 28 records
September: 33 records
October: 35 records
November: 9 records
December: 7 records

Depth and water temperature

Depth

Mostly recorded at 13–29 m · Deepest record: 200 m

0–10 m: 4 records
10–20 m: 34 records
20–30 m: 62 records
30–40 m: 4 records
40–50 m: 0 records
50–60 m: 3 records
60–70 m: 1 records
70–80 m: 0 records
80–90 m: 1 records
90–100 m: 0 records
100–110 m: 0 records
110+ m: 1 records

Water temperature

Recorded in surface water of 24–29 °C

24–26 °C: 97 records
26–28 °C: 9 records
28–30 °C: 6 records

Photos

(c) jeyre, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Debra Baker, some rights reserved (CC BY) · CC BY · iNaturalist
(c) jeyre, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Jay Brasher, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

Other scientific names: Anthias bicolor, Mirolabrichthys bicolor, Pseudanthias bicolor

Similar species

Nemanthias bartlettorum
Threadfin anthias
Nemanthias carberryi
Nemanthias dispar
Nemanthias regalis
Butterfly Perch
Caesioperca lepidoptera
Barber Perch
Caesioperca rasor

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.
122 open-data records from 1970 to 2019.
Species data updated November 4, 2026.