Crested Wart Slug

Phyllidiopsis shireenae

Nudibranchs
IUCN: Not evaluated

Usual depth10–43 m
Water temperature19–30 °C
Best monthsMarch, April, and December
How commonRare

Photo credit: (c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Phyllidiopsis shireenae is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae of the order Doridida. Its common names are Shireen’s Phyllidiopsis, Shireen’s Phyllidiopsis Sea Slug, Shirin Sea Slug, and Crested Wart Slug.

Text from the Wikipedia article “Phyllidiopsis shireenae”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 46 records
February: 39 records
March: 66 records
April: 54 records
May: 48 records
June: 34 records
July: 35 records
August: 44 records
September: 43 records
October: 44 records
November: 44 records
December: 63 records

Depth and water temperature

Depth

Mostly recorded at 10–43 m · Deepest record: 92.5 m

0–10 m: 1 records
10–20 m: 17 records
20–30 m: 7 records
30–40 m: 2 records
40–50 m: 3 records
50–60 m: 0 records
60–70 m: 1 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 1 records

Water temperature

Recorded in surface water of 19–30 °C

18–20 °C: 1 records
20–22 °C: 1 records
22–24 °C: 0 records
24–26 °C: 6 records
26–28 °C: 28 records
28–30 °C: 111 records

Photos

(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Tom Heijnen, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Pierre Pericard, some rights reserved (CC BY) · CC BY · iNaturalist
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist

Names and classification

English: Crested Wart Slug, Shireen's Phyllidiopsis

Names in 3 more languages

French: Phyllidiopsis de Shireen
Japanese: トサカイボウミウシ
Simplified Chinese: 席琳葉海蛞蝓

Similar species

Striped Phyllidiopsis
Phyllidiopsis xishaensis
Anne's Phyllidiopsis
Phyllidiopsis annae
Phyllidiopsis burni
Gorgeous Wart Slug
Phyllidiopsis cardinalis
Compound Wart Slug
Phyllidiopsis fissurata
Krempf's Phyllidiopsis
Phyllidiopsis krempfi

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).
241 open-data records from 1975 to 2026.
Species data updated October 26, 2026.

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