
Diodora ticaonica
- Usual depth4–69 m
- Water temperature20–30 °C
- Best monthsAugust, September, and October
- How commonRare
Photo credit: (c) Thomas Mesaglio, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Diodora ticaonica 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 “Diodora ticaonica”, 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: 7 records
- February: 15 records
- March: 13 records
- April: 18 records
- May: 27 records
- June: 24 records
- July: 26 records
- August: 34 records
- September: 28 records
- October: 33 records
- November: 14 records
- December: 10 records
Depth and water temperature
Depth
Mostly recorded at 4–69 m · Deepest record: 68.5 m
Water temperature
Recorded in surface water of 20–30 °C
Photos

(c) Thomas Mesaglio, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
Names in 1 more languages
- Simplified Chinese
- 鑰孔透孔螺
Other scientific names: Fissurella ticaonica, Glyphis ticaonica
Similar species
Latticed Keyhole LimpetDiodora lineata

Cross Keynote LimpetDiodora quadriradiata
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).
- 304 open-data records from 1850 to 2018.
- Species data updated November 2, 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.