
Green Top Shell
Coelotrochus viridis
- Usual depth0–13 m
- Water temperature12–18 °C
- Best monthsJanuary, April, and November
- How commonRare
Photo credit: (c) Javier, some rights reserved (CC BY), uploaded by Javier · CC BY · iNaturalist
About this species
Coelotrochus viridis, common name the green top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Text from the Wikipedia article “Coelotrochus viridis”, 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: 35 records
- February: 20 records
- March: 23 records
- April: 31 records
- May: 20 records
- June: 15 records
- July: 22 records
- August: 13 records
- September: 21 records
- October: 21 records
- November: 24 records
- December: 17 records
Depth and water temperature
Depth
Mostly recorded at 0–13 m · Deepest record: 16 m
Water temperature
Recorded in surface water of 12–18 °C
Photos

(c) wild_wind, some rights reserved (CC BY), uploaded by wild_wind · CC BY · iNaturalist 
(c) Javier, some rights reserved (CC BY), uploaded by Javier · CC BY · iNaturalist 
(c) Saryu Mae 前 朝琉, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) wild_wind, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) wild_wind, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Stephen Thorpe, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Green Top Shell, Green Top Snail
Other scientific names: Anthora tuberculata, Polydonta (Infundibulum) tritonis, Polydonta tuberculata, Polydonta viridescens, Trochus (Thorista) viridis, Trochus acinosus, Trochus fulvolabris, Trochus viridis
Similar species

Tiara Top ShellCoelotrochus tiaratus
Ribbon MonodontaAustrocochlea constricta
Zebra SnailAustrocochlea porcata
Banded Kelp ShellBankivia fasciata

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).
- 454 open-data records from 1919 to 2011.
- Species data updated November 1, 2026.
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