Pustular phyllidia

Phyllidiella pustulosa

Nudibranchs
IUCN: Not evaluated

Usual depth5–21 m
Water temperature19–30 °C
Best monthsFebruary, March, and July
How commonOccasional

Photo credit: (c) Tine Kinn Kvamme, some rights reserved (CC BY), uploaded by Tine Kinn Kvamme · CC BY · iNaturalist

About this species

Phyllidiella pustulosa, the pustulose wart slug, pimpled phyllidiella, or pustulose phyllidiella, is a species of sea slug, a dorid nudibranch, in the family Phyllidiidae.

Text from the Wikipedia article “Phyllidiella pustulosa”, 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: 230 records
February: 310 records
March: 289 records
April: 268 records
May: 250 records
June: 275 records
July: 276 records
August: 256 records
September: 271 records
October: 209 records
November: 214 records
December: 248 records

Depth and water temperature

Depth

Mostly recorded at 5–21 m · Deepest record: 1,420 m

0–10 m: 104 records
10–20 m: 270 records
20–30 m: 34 records
30–40 m: 5 records
40–50 m: 3 records
50–60 m: 1 records
60–70 m: 2 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 2 records
100–110 m: 0 records
110+ m: 4 records

Water temperature

Recorded in surface water of 19–30 °C

18–20 °C: 3 records
20–22 °C: 24 records
22–24 °C: 23 records
24–26 °C: 51 records
26–28 °C: 40 records
28–30 °C: 197 records

Photos

no rights reserved · CC0 1.0 · iNaturalist
(c) portioid, 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) desertnaturalist, some rights reserved (CC BY) · CC BY · iNaturalist
(c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) · CC BY · iNaturalist
(c) Thibaud Aronson, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist

Names and classification

English: Pustular phyllidia, Pustule nudibranch, Pustulose wart slug, Warty Wart Slug, Pimpled Phyllidellia, pustular phyllidia, pustule nudibranch, pustulose wart slug

Names in 6 more languages

German: Pustel-Warzenschnecke
French: Phyllidie pustuleuse
Japanese: コイボウミウシ
Korean: 혹투성이갯민숭이
Thai: ทากเปลือยปุ่มดำขาว
Simplified Chinese: 突丘小葉海蛞蝓, 突丘葉海牛, 突丘葉海麒麟

Other scientific names: Fryeria variabilis, Phyllidia melanocera, Phyllidia nobilis, Phyllidia pustulosa, Phyllidia rotunda, Phyllidia spectabilis, Phyllidia verrucosa, Phyllidiella nobilis

Similar species

Heavenly Wart Slug
Phyllidia coelestis
Elegant Phyllidia
Phyllidia elegans
Ocellated Wart Slug
Phyllidia ocellata
Black-rayed phyllidia
Phyllidia picta
Variable Wart Slug
Phyllidia varicosa
Polkadot Nudibranch
Phyllidia polkadotsa

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).
1,826 open-data records from 1804 to 2026.
Species data updated October 26, 2026.

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