Largescale flounder

Engyprosopon grandisquama

Fish
IUCN: Least concern

Usual depth22–70 m
Water temperature20–29 °C
Best monthsSeptember and October
How commonOccasional

Photo credit: (c) Bernard DUPONT, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Engyprosopon is a genus of small lefteye flounders. They are found in the Indo-Pacific, ranging from shallow coastal waters to depths in excess of 400 m (1,300 ft).

Text from the Wikipedia article “Engyprosopon”, 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: 25 records
February: 58 records
March: 33 records
April: 42 records
May: 52 records
June: 60 records
July: 24 records
August: 82 records
September: 120 records
October: 169 records
November: 74 records
December: 29 records

Depth and water temperature

Depth

Mostly recorded at 22–70 m · Deepest record: 907.5 m

0–10 m: 6 records
10–20 m: 31 records
20–30 m: 82 records
30–40 m: 113 records
40–50 m: 88 records
50–60 m: 133 records
60–70 m: 32 records
70–80 m: 33 records
80–90 m: 11 records
90–100 m: 0 records
100–110 m: 1 records
110+ m: 8 records

Water temperature

Recorded in surface water of 20–29 °C

18–20 °C: 1 records
20–22 °C: 2 records
22–24 °C: 109 records
24–26 °C: 59 records
26–28 °C: 194 records
28–30 °C: 20 records

Photos

Names and classification

English: Largescale flounder, largescale flounder, Spiny-head Flounder, spotted-tail flounder

Names in 3 more languages

Spanish: Lenguado Escamoso
French: Perpeire à Grandes Ecailles, Perpeire à grandes écailles
Japanese: Darumagarei, ダルマガレイ

Other scientific names: Arnoglossus grandisquama, Arnoglossus poecilurus, Arnoglossus spilurus, Bothus poecilurus, Engyprosopon grandiquama, Engyprosopon grandisquamis, Engyprosopon spiniceps, Engyroprosopon grandisquamis, Platophrys grandisquama, Platophrys poecilurus, Platophrys spiniceps, Pseudorhombus poecilurus, Rhomboidichthys grandisquama, Rhomboidichthys poecilurus, Rhomboidichthys spilurus, Rhomboidichthys spiniceps, Rhombus grandisquama, Rhombus poecilurus, Scaeops grandisquama, Scaeops orbicularis, Scaeops poecilura, Scaeops poecilurus, Scaeops spilura

Similar species

Engyprosopon maldivense
Largescale Dwarf Flounder
Engyprosopon macrolepis
Mogki Flounder
Engyprosopon mogkii
Imperial scaldfish
Arnoglossus imperialis
Megrim
Arnoglossus scapha
Tropical flounder
Bothus mancus

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).
1,156 open-data records from 1846 to 2021.
Species data updated October 26, 2026.

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