Pitted Keyhole Limpet

Cosmetalepas concatenata

Molluscs
IUCN: Not evaluated

Usual depth0–70 m
Water temperature14–26 °C
Best monthsJanuary, March, and November
How commonRare

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

About this species

Cosmetalepas concatenata, common name the pitted keyhole limpet, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

Text from the Wikipedia article “Cosmetalepas concatenata”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 34 records
February: 22 records
March: 33 records
April: 24 records
May: 19 records
June: 9 records
July: 11 records
August: 16 records
September: 25 records
October: 24 records
November: 29 records
December: 19 records

Depth and water temperature

Depth

Mostly recorded at 0–70 m · Deepest record: 69.5 m

0–10 m: 5 records
10–20 m: 2 records
20–30 m: 0 records
30–40 m: 0 records
40–50 m: 0 records
50–60 m: 0 records
60–70 m: 1 records

Water temperature

Recorded in surface water of 14–26 °C

14–16 °C: 103 records
16–18 °C: 21 records
18–20 °C: 14 records
20–22 °C: 39 records
22–24 °C: 7 records
24–26 °C: 3 records

Photos

Names and classification

English: Pitted Keyhole Limpet

Other scientific names: Fissurella concatenata, Megatebennus concatenatus

Similar species

black keyhole limpet
Amblychilepas nigrita
Latticed Keyhole Limpet
Diodora lineata
Notched False Limpet
Emarginula candida
Scutus unguis
Javan Keyhole Limpet
Amblychilepas javanicensis
oblong keyhole limpet
Amblychilepas oblonga

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.
Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
Conservation status as published by GBIF (IUCN Red List).
236 open-data records from 1900 to 2016.
Species data updated November 1, 2026.

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