Tryon's Hypselodoris

About this species

Hypselodoris tryoni is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the genus Chromodorididae.

Text from the Wikipedia article “Hypselodoris tryoni”, 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: 259 records
February: 182 records
March: 247 records
April: 292 records
May: 225 records
June: 234 records
July: 214 records
August: 242 records
September: 264 records
October: 342 records
November: 283 records
December: 276 records

Depth and water temperature

Depth

Mostly recorded at 4–18 m · Deepest record: 27 m

0–10 m: 74 records
10–20 m: 93 records
20–30 m: 15 records

Water temperature

Recorded in surface water of 13–30 °C

12–14 °C: 1 records
14–16 °C: 0 records
16–18 °C: 0 records
18–20 °C: 0 records
20–22 °C: 13 records
22–24 °C: 12 records
24–26 °C: 27 records
26–28 °C: 12 records
28–30 °C: 125 records

Photos

(c) Kai Squires, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Tine Kinn Kvamme, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Rachel Crane, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Gregor Bailar, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Tine Kinn Kvamme, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Tryon's Hypselodoris

Names in 3 more languages

French: Risbécie de Tryon
Japanese: マダライロウミウシ
Simplified Chinese: 崔恩多彩海蛞蝓

Other scientific names: Chromodoris odhneri, Chromodoris tryoni, Glossodoris (Chromodoris) odhneri, Glossodoris odhneri, Goniodoris tryoni, Jeanrisbecia francoisi, Risbecia francoisi, Risbecia odhneri, Risbecia tryoni

Similar species

Cinderella Sea Slug
Hypselodoris apolegma
Lavender Split-tooth Dorid
Hypselodoris bullockii
Triple-striped Split-tooth Dorid
Hypselodoris emma
Black-spotted Split-tooth Dorid
Hypselodoris infucata
Double-banded Split-tooth Dorid
Hypselodoris maculosa
Bumpy Split-tooth Dorid
Hypselodoris whitei

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).
882 open-data records from 1972 to 2026.
Species data updated October 26, 2026.