Ridgehead

Melamphaes suborbitalis

Fish
IUCN: Data deficient

Usual depth135–1,600 m
Water temperature10–24 °C
Best monthsJune
How commonRare

All species

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 0 records
February: 5 records
March: 2 records
April: 4 records
May: 8 records
June: 46 records
July: 6 records
August: 10 records
September: 10 records
October: 14 records
November: 9 records
December: 9 records

Depth and water temperature

Depth

Mostly recorded at 135–1,600 m · Deepest record: 3,321.5 m

0–10 m: 2 records
10–20 m: 0 records
20–30 m: 0 records
30–40 m: 0 records
40–50 m: 0 records
50–60 m: 0 records
60–70 m: 0 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 0 records
100–110 m: 0 records
110+ m: 110 records

Water temperature

Recorded in surface water of 10–24 °C

8–10 °C: 1 records
10–12 °C: 25 records
12–14 °C: 23 records
14–16 °C: 26 records
16–18 °C: 22 records
18–20 °C: 18 records
20–22 °C: 6 records
22–24 °C: 31 records
24–26 °C: 1 records

Names and classification

English: Ridgehead, Shoulderspine bigscale

Names in 1 more languages

Japanese: Togekabutoo, トゲカブトウオ

Other scientific names: Plectromus suborbitalis

Similar species

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.
Conservation status as published by GBIF (IUCN Red List).
308 open-data records from 1883 to 2021.
Species data updated November 4, 2026.

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