Skip to content

DiscoverSpeciesNudibranchs

Lavender Split-tooth Dorid

Hypselodoris bullockii

  • Nudibranchs
  • IUCN: Not evaluated
  • Usual depth7–20 m
  • Water temperature19–30 °C
  • Best monthsMarch, April, and May
  • How commonOccasional
All species

Photo credit: (c) Steve Childs, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Hypselodoris bullockii is a species of colourful sea slug or dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.

Text from the Wikipedia article “Hypselodoris bullockii”, 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: 140 records
  • February: 110 records
  • March: 142 records
  • April: 194 records
  • May: 162 records
  • June: 105 records
  • July: 86 records
  • August: 126 records
  • September: 105 records
  • October: 90 records
  • November: 92 records
  • December: 113 records

Depth and water temperature

Depth

Mostly recorded at 7–20 m · Deepest record: 30 m

  • 0–10 m: 47 records
  • 10–20 m: 88 records
  • 20–30 m: 15 records
  • 30–40 m: 1 records

Water temperature

Recorded in surface water of 19–30 °C

  • 18–20 °C: 1 records
  • 20–22 °C: 9 records
  • 22–24 °C: 24 records
  • 24–26 °C: 100 records
  • 26–28 °C: 38 records
  • 28–30 °C: 191 records

Names and classification

English
Lavender Split-tooth Dorid, Bullock's Hypselodoris
Names in 3 more languages
French
Hypselodoris de Bullock
Japanese
ゾウゲイロウミウシ
Simplified Chinese
公牛多彩海麒麟, 布氏高澤海蛞蝓(布拉克高澤海蛞蝓)

Other scientific names: Chromodoris bullockii, Risbecia bullockii

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).
  • 738 open-data records from 1970 to 2026.
  • Species data updated October 26, 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.

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