Gravel sea cucumber

Neopentadactyla mixta

Other invertebrates
IUCN: Not evaluated

Usual depth10–37 m
Water temperature9–20 °C
Best monthsJune and July
How commonOccasional

All species

Photo credit: (c) Bernard Picton, some rights reserved (CC BY), uploaded by Bernard Picton · CC BY · iNaturalist

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 21 records
February: 10 records
March: 68 records
April: 171 records
May: 262 records
June: 441 records
July: 279 records
August: 150 records
September: 77 records
October: 12 records
November: 1 records
December: 1 records

Depth and water temperature

Depth

Mostly recorded at 10–37 m · Deepest record: 621 m

0–10 m: 92 records
10–20 m: 417 records
20–30 m: 324 records
30–40 m: 104 records
40–50 m: 25 records
50–60 m: 29 records
60–70 m: 22 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 0 records
100–110 m: 0 records
110+ m: 1 records

Water temperature

Recorded in surface water of 9–20 °C

8–10 °C: 32 records
10–12 °C: 612 records
12–14 °C: 297 records
14–16 °C: 4 records
16–18 °C: 1 records
18–20 °C: 0 records
20–22 °C: 19 records

Photos

Names and classification

English: Gravel sea cucumber, gravel sea cucumber, Gravel Sea Cucumber

Names in 1 more languages

French: Holothurie de sable, holothurioe de sable

Other scientific names: Pseudocucumis cuenoti, Pseudocucumis mixta

Similar species

Shellgrit sea cucumber
Lipotrapeza vestiens
Buried Sea Cucumber
Massinium magnum
Hemithyone semperi
Lipotrapeza eichleri
Lipotrapeza littoralis
Massinium watsonae

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).
1,691 open-data records from 1967 to 2023.
Species data updated November 5, 2026.

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