Black-margined Nudibranch

About this species

Doriprismatica atromarginata, common name Cheesecake nudibranch, is a species of sea slug. It is a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

Text from the Wikipedia article “Doriprismatica atromarginata”, 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: 620 records
February: 390 records
March: 478 records
April: 449 records
May: 399 records
June: 417 records
July: 337 records
August: 442 records
September: 471 records
October: 433 records
November: 537 records
December: 479 records

Depth and water temperature

Depth

Mostly recorded at 3–20 m · Deepest record: 75 m

0–10 m: 61 records
10–20 m: 107 records
20–30 m: 25 records
30–40 m: 0 records
40–50 m: 0 records
50–60 m: 0 records
60–70 m: 0 records
70–80 m: 1 records

Water temperature

Recorded in surface water of 19–30 °C

18–20 °C: 3 records
20–22 °C: 21 records
22–24 °C: 13 records
24–26 °C: 7 records
26–28 °C: 18 records
28–30 °C: 64 records

Photos

(c) Lawrence Hylton, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Joanna Chen, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist
(c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) · CC BY · iNaturalist
(c) Jay Paroline, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Bernard DUPONT, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Black-margined Nudibranch

Names in 4 more languages

French: Doris à rebord noir
Japanese: キイロウミウシ
Thai: ทากเปลือยขอบดำ, ทากเปลือยทองหยิบ
Simplified Chinese: 黑邊多彩海牛, 黑邊多彩海蛞蝓, 黑邊菱緣海蛞蝓

Other scientific names: Casella atromarginata, Casella maccarthyi, Casella philippinensis, Doris atromarginata, Doris maccarthyi, Glossodoris atromarginata, Glossodoris maccarthyi, Goniodoris atromarginata

Similar species

Doriprismatica balut
Starry Doriprismatica
Doriprismatica stellata
Meringue Rainbow Dorid
Doriprismatica paladentata
Slender ceratosoma nudibranch
Ceratosoma gracillimum
Elongate Pantechnicon Dorid
Ceratosoma tenue
T-bar Pantechnicon Dorid
Ceratosoma trilobatum

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).
1,011 open-data records from 1907 to 2026.
Species data updated October 26, 2026.