Skip to content

DiscoverSpeciesMolluscs

Maculated top shell

Trochus maculatus

  • Molluscs
  • IUCN: Not evaluated
  • Usual depth4–38 m
  • Water temperature22–30 °C
  • Best monthsFebruary, May, and July
  • How commonOccasional
All species

About this species

Trochus maculatus, common name the maculated top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

Text from the Wikipedia article “Trochus maculatus”, 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: 0 records
  • February: 21 records
  • March: 4 records
  • April: 5 records
  • May: 24 records
  • June: 19 records
  • July: 21 records
  • August: 16 records
  • September: 11 records
  • October: 11 records
  • November: 1 records
  • December: 13 records

Depth and water temperature

Depth

Mostly recorded at 4–38 m · Deepest record: 46.5 m

  • 0–10 m: 6 records
  • 10–20 m: 13 records
  • 20–30 m: 8 records
  • 30–40 m: 6 records
  • 40–50 m: 2 records

Water temperature

Recorded in surface water of 22–30 °C

  • 22–24 °C: 30 records
  • 24–26 °C: 48 records
  • 26–28 °C: 69 records
  • 28–30 °C: 82 records

Names and classification

English
Maculated top shell, Mottled topsnail, maculated top shell, mottled topsnail, red spotted topshell
Names in 4 more languages
German
Gefleckte Kreiselschnecke
Japanese
ニシキウズ
Thai
หอยนมสาว
Simplified Chinese
花斑鐘螺

Other scientific names: Polydonta gibberula, Tectus maculatus, Trochus grandinatus, Trochus smaragdus, Trochus verrucosus

Similar species

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).
  • 434 open-data records from 1758 to 2023.

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.

Join the waitlist

DiveHive uses necessary cookies to work. With your permission we also use analytics to see which pages help. Analytics is off until you say yes, and we never record what you type.

  • NecessaryAlways on: your choice, security.Always on
  • AnalyticsOff unless you accept.Off
Privacy policy