
Orange-edged Sapsucking Slug
Thuridilla lineolata
- Usual depth3–11 m
- Water temperature28–29 °C
- Best monthsJanuary, February, and November
- How commonRare
Photo credit: (c) Dan Schofield, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Thuridilla lineolata is a species of sea slug, a sacoglossan, a marine gastropod mollusk in the family Plakobranchidae. It is an Indo-Pacific species that lives in or near coral reefs and eats algae.
Text from the Wikipedia article “Thuridilla lineolata”, 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: 75 records
- February: 45 records
- March: 29 records
- April: 42 records
- May: 39 records
- June: 33 records
- July: 28 records
- August: 32 records
- September: 31 records
- October: 32 records
- November: 49 records
- December: 40 records
Depth and water temperature
Depth
Mostly recorded at 3–11 m · Deepest record: 18.3 m
Water temperature
Recorded in surface water of 28–29 °C
Photos

(c) Ewout Knoester, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Bart, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Kai Squires, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Tom Heijnen, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ben Jobson, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Davis Damaledo, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Orange-edged Sapsucking Slug
Names in 1 more languages
- Japanese
- ソライロミドリガイ
Other scientific names: Elysia lineolata
Similar species
Slender Sap Sucking SlugThuridilla gracilis
White-marked Taco SlugThuridilla albopustulosa



Midnight Taco SlugThuridilla hoffae
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).
- 152 open-data records from 1989 to 2026.
- Species data updated October 31, 2026.
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