Lucky Pinstripe

About this species

Dermatobranchus fortunatus is a species of sea slug, a nudibranch, a marine gastropod mollusc in the family Arminidae.

Text from the Wikipedia article “Dermatobranchus fortunatus”, 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: 19 records
February: 9 records
March: 15 records
April: 26 records
May: 20 records
June: 18 records
July: 25 records
August: 18 records
September: 23 records
October: 20 records
November: 5 records
December: 20 records

Depth and water temperature

Depth

Mostly recorded at 4–15 m · Deepest record: 24.4 m

0–10 m: 29 records
10–20 m: 28 records
20–30 m: 1 records

Water temperature

Recorded in surface water of 20–30 °C

20–22 °C: 1 records
22–24 °C: 8 records
24–26 °C: 38 records
26–28 °C: 10 records
28–30 °C: 63 records

Photos

(c) Bernard Picton, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Tine Kinn Kvamme, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Tine Kinn Kvamme, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist

Names and classification

English: Lucky Pinstripe

Names in 1 more languages

Japanese: クチヒゲオトメウミウシ

Other scientific names: Pleuroleura fortunata

Similar species

Dark-nosed Pinstripe
Dermatobranchus albus
Dermatobranchus caeruleomaculatus
Dermatobranchus funiculus
Orange-margin Pinstripe
Dermatobranchus gonatophorus
Dermatobranchus kalyptos
Ornate Pinstripe
Dermatobranchus ornatus

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).
136 open-data records from 1981 to 2026.
Species data updated October 26, 2026.