Elongate Pantechnicon Dorid

About this species

Ceratosoma tenue is a species of colourful dorid nudibranch, a sea slug, a shell-less marine gastropod mollusc in the family Chromodorididae.

Text from the Wikipedia article “Ceratosoma tenue”, 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: 72 records
February: 80 records
March: 101 records
April: 115 records
May: 92 records
June: 82 records
July: 99 records
August: 83 records
September: 104 records
October: 123 records
November: 100 records
December: 115 records

Depth and water temperature

Depth

Mostly recorded at 10–50 m · Deepest record: 120 m

0–10 m: 9 records
10–20 m: 52 records
20–30 m: 17 records
30–40 m: 3 records
40–50 m: 2 records
50–60 m: 5 records
60–70 m: 2 records
70–80 m: 1 records
80–90 m: 0 records
90–100 m: 1 records
100–110 m: 0 records
110+ m: 2 records

Water temperature

Recorded in surface water of 20–29 °C

18–20 °C: 3 records
20–22 °C: 35 records
22–24 °C: 14 records
24–26 °C: 41 records
26–28 °C: 20 records
28–30 °C: 100 records

Photos

(c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Pauline Walsh Jacobson, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Bernard Picton, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Robin White, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Kai Squires, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Elongate Pantechnicon Dorid, Kangaroo-like Tail, Many-lobed Ceratosoma

Names in 4 more languages

French: Cératosome ténue, Doris à bord pourpre
Japanese: テヌウニシキウミウシ
Korean: 꼬리갯민숭달팽이
Simplified Chinese: 波翼多彩海牛

Other scientific names: Ceratosoma bicorne, Ceratosoma francoisi, Ceratosoma jousseaumi, Ceratosoma ornatum, Ceratosoma rhopalicum

Similar species

Slender ceratosoma nudibranch
Ceratosoma gracillimum
T-bar Pantechnicon Dorid
Ceratosoma trilobatum
Anna's Chromodoris
Chromodoris annae
Chromodoris colemani
Elisabeth's Chromodoris
Chromodoris elisabethina
Pyjama Rainbow Dorid
Chromodoris lochi

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).
333 open-data records from 1968 to 2026.
Species data updated October 26, 2026.