Ridged Granulated Dorid

About this species

Atagema intecta is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Discodorididae.

Text from the Wikipedia article “Atagema intecta”, 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: 80 records
February: 38 records
March: 42 records
April: 45 records
May: 45 records
June: 43 records
July: 29 records
August: 23 records
September: 22 records
October: 27 records
November: 57 records
December: 64 records

Depth and water temperature

Depth

Mostly recorded at 2–21 m · Deepest record: 30 m

0–10 m: 31 records
10–20 m: 18 records
20–30 m: 7 records
30–40 m: 1 records

Water temperature

Recorded in surface water of 20–29 °C

18–20 °C: 4 records
20–22 °C: 26 records
22–24 °C: 13 records
24–26 °C: 20 records
26–28 °C: 12 records
28–30 °C: 25 records

Photos

(c) Eldon E Ball, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Pauline Walsh Jacobson, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Kai Squires, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Daniel Montesinos, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Emma Sophie, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Ridged Granulated Dorid

Names in 4 more languages

French: Atagema rugueuse
Japanese: カイメンウミウシ
Korean: 갈색해면갯민숭달팽이
Simplified Chinese: 縱斑盤海蛞蝓（白線盤海蛞蝓）

Other scientific names: Doris intecta, Goniodoris erinaceus, Trippa affinis, Trippa intecta, Trippa ornata

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).
117 open-data records from 1905 to 2026.
Species data updated October 26, 2026.