Buried Sea Cucumber

Massinium magnum

Other invertebrates
IUCN: Not evaluated

Usual depth3–18 m
Water temperature20–29 °C
Best monthsMay, September, and November
How commonRare

All species

Photo credit: no rights reserved · CC0 1.0 · iNaturalist

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 8 records
February: 4 records
March: 8 records
April: 8 records
May: 10 records
June: 4 records
July: 5 records
August: 6 records
September: 10 records
October: 9 records
November: 10 records
December: 3 records

Depth and water temperature

Depth

Mostly recorded at 3–18 m · Deepest record: 99 m

0–10 m: 6 records
10–20 m: 3 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: 1 records

Water temperature

Recorded in surface water of 20–29 °C

20–22 °C: 2 records
22–24 °C: 0 records
24–26 °C: 3 records
26–28 °C: 2 records
28–30 °C: 5 records

Photos

Names and classification

English: Buried Sea Cucumber, Large Burrowing Sea Cucumber, Magnum Sea Cucumber

Names in 1 more languages

Japanese: オオハナナマコ

Other scientific names: Neothyonidium magnum, Thyone perissa, Thyonidium magnum

Similar species

Massinium watsonae
Gravel sea cucumber
Neopentadactyla mixta
Shellgrit sea cucumber
Lipotrapeza vestiens
Hemithyone semperi
Lipotrapeza eichleri
Lipotrapeza littoralis

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).
32 open-data records from 1974 to 2022.
Species data updated November 4, 2026.

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