Blue Whiptail

About this species

Pentapodus emeryii, the double whiptail, purple threadfin bream or blue whiptail, is a species of marine ray-finned fish belonging to the family Nemipteridae, the threadfin breams. This fish occurs in the eastern Indian Ocean and western Pacific Ocean.

Text from the Wikipedia article “Pentapodus emeryii”, 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: 9 records
February: 2 records
March: 5 records
April: 15 records
May: 7 records
June: 5 records
July: 6 records
August: 10 records
September: 19 records
October: 35 records
November: 35 records
December: 69 records

Depth and water temperature

Depth

Mostly recorded at 20–56 m · Deepest record: 95 m

0–10 m: 2 records
10–20 m: 8 records
20–30 m: 15 records
30–40 m: 10 records
40–50 m: 37 records
50–60 m: 36 records
60–70 m: 0 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 1 records

Water temperature

Recorded in surface water of 20–30 °C

20–22 °C: 1 records
22–24 °C: 1 records
24–26 °C: 5 records
26–28 °C: 9 records
28–30 °C: 125 records

Photos

(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
(c) desertnaturalist, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Ben Costamagna, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Ben Costamagna, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Hugo Innes, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Blue Whiptail, double whiptail, purple threadfin-bream, Purple Threadfin Bream, Threadtail bream, Whip-tailed Threadfin-bream, Yellow Line Snapper

Names in 2 more languages

German: Emerys Scheinschnapper
Simplified Chinese: 紅尾冬仔

Other scientific names: Heterognathodon nemurus, Mesoprion emeryii, Pentapus nemurus

Similar species

Small-toothed Whiptail
Pentapodus trivittatus
blue-banded whiptail
Pentapodus paradiseus
Threadtail bream
Pentapodus bifasciatus
Big-tailed Besugo
Pentapodus caninus
bluebanded whiptail
Pentapodus setosus
gold perch
Nemipterus hexodon

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).
235 open-data records from 1931 to 2015.
Species data updated October 30, 2026.