
Ophicardelus sulcatus
- Water temperature18–26 °C
- Best monthsFebruary, August, and September
- How commonOccasional
Photo credit: (c) Gary Williams, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 5 records
- February: 81 records
- March: 30 records
- April: 17 records
- May: 48 records
- June: 47 records
- July: 15 records
- August: 55 records
- September: 49 records
- October: 25 records
- November: 45 records
- December: 7 records
Depth and water temperature
Water temperature
Recorded in surface water of 18–26 °C
Names and classification
Other scientific names: Melampus stutchburyi, Melampus sulcatus, Ophicardelus (Laimodonta) sulcata
Similar species

Mouse-eared snailMyosotella myosotis

Judas Ear CassidulaEllobium aurisjudae
Midas ear cassidulaEllobium aurismidae

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).
- 505 open-data records from 1876 to 2009.
- Species data updated November 5, 2026.
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