Lutraria rhynchaena

Molluscs
IUCN: Not evaluated

Usual depth50 m
Water temperature16–30 °C
Best monthsJuly, September, and October
How commonOccasional

All species

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

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 111 records
February: 76 records
March: 78 records
April: 52 records
May: 77 records
June: 70 records
July: 177 records
August: 166 records
September: 244 records
October: 209 records
November: 161 records
December: 144 records

Depth and water temperature

Depth

Mostly recorded at 50 m · Deepest record: 50 m

50–60 m: 1 records

Water temperature

Recorded in surface water of 16–30 °C

14–16 °C: 3 records
16–18 °C: 4 records
18–20 °C: 1 records
20–22 °C: 7 records
22–24 °C: 4 records
24–26 °C: 5 records
26–28 °C: 11 records
28–30 °C: 20 records

Photos

(c) Tim, some rights reserved (CC BY) · CC BY · iNaturalist
(c) David Gobbett, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Tim, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Thomas Mesaglio, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Alex Stuart, some rights reserved (CC BY) · CC BY · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist
(c) ttsquid, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

Names in 1 more languages

Japanese: カモジガイ

Other scientific names: Lutraria (Psammophila) rhynchaena, Lutraria dissimilis, Lutraria solenoides

Similar species

Common otter clam
Lutraria lutraria
Reddish Mactra
Austromactra rufescens
Diamond Clam
Crassula aequilatera
Australian Mactra
Mactra australis
Chinese surf clam
Mactra chinensis
Mactra pura

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).
275 open-data records from 1903 to 2014.
Species data updated November 4, 2026.

Log what you see on your next dive

The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.

Join the waitlist