Truncated Ark

Lamarcka ventricosa

Molluscs
IUCN: Not evaluated

Usual depth7–16 m
Water temperature20–30 °C
Best monthsJuly, September, and October
How commonOccasional

All species

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 14 records
February: 15 records
March: 6 records
April: 5 records
May: 11 records
June: 14 records
July: 82 records
August: 25 records
September: 91 records
October: 109 records
November: 16 records
December: 10 records

Depth and water temperature

Depth

Mostly recorded at 7–16 m · Deepest record: 112.5 m

0–10 m: 113 records
10–20 m: 146 records
20–30 m: 7 records
30–40 m: 2 records
40–50 m: 0 records
50–60 m: 0 records
60–70 m: 0 records
70–80 m: 0 records
80–90 m: 1 records
90–100 m: 0 records
100–110 m: 0 records
110–120 m: 1 records

Water temperature

Recorded in surface water of 20–30 °C

20–22 °C: 1 records
22–24 °C: 9 records
24–26 °C: 286 records
26–28 °C: 113 records
28–30 °C: 62 records

Names and classification

English: Truncated Ark, Ventricose Ark

Names in 1 more languages

Japanese: オオタカノハガイ

Other scientific names: Arca insignis, Arca ventricosa, Arca zebra, Navicula parventricosa

Similar species

Divaricated Ark
Acar plicata
Antique ark
Anadara antiquata
Indo-Pacific Ark
Arca navicularis
Burnt-almond ark
Barbatia amygdalumtostum
Anadara cornea
Anadara pilula

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).
489 open-data records from 1819 to 2017.

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