Great worm shell
Ceraesignum maximum
- Usual depth11–15 m
- Water temperature25–29 °C
- Best monthsSeptember and October
- How commonRare
About this species
Ceraesignum maximum is a species of gastropods belonging to the family Vermetidae.
Text from the Wikipedia article “Ceraesignum maximum”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 4 records
- February: 6 records
- March: 5 records
- April: 5 records
- May: 5 records
- June: 2 records
- July: 6 records
- August: 48 records
- September: 106 records
- October: 175 records
- November: 6 records
- December: 1 records
Depth and water temperature
Depth
Mostly recorded at 11–15 m · Deepest record: 28 m
Water temperature
Recorded in surface water of 25–29 °C
Names and classification
- English
- Great worm shell, Great wormsnail, great worm shell, great wormsnail, Vermetid Worm Snail
Names in 5 more languages
- German
- Horndeckel-Wurmschnecke
- French
- Grand vermet tropical
- Japanese
- フタモチヘビガイ
- Korean
- 뱀고둥
- Simplified Chinese
- 大管蛇螺, 有蓋蛇螺
Other scientific names: Dendropoma maximum, Serpula maxima, Siphonium maximum, Vermetus giganteus
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).
- 346 open-data records from 1825 to 2005.
- Species data updated October 26, 2026.
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