Elysia obtusa
- Usual depth2–15 m
- Water temperature18–29 °C
- Best monthsApril, May, and June
- How commonRare
About this species
Elysia obtusa is a species of sea slug, a marine gastropod mollusc in the family Plakobranchidae. This sea slug resembles a nudibranch but is not closely related to that order of gastropods, instead it is a sacoglossan.
Text from the Wikipedia article “Elysia obtusa”, 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: 13 records
- February: 21 records
- March: 11 records
- April: 30 records
- May: 30 records
- June: 25 records
- July: 15 records
- August: 25 records
- September: 13 records
- October: 11 records
- November: 10 records
- December: 12 records
Depth and water temperature
Depth
Mostly recorded at 2–15 m · Deepest record: 22 m
Water temperature
Recorded in surface water of 18–29 °C
Names and classification
Names in 2 more languages
- Japanese
- オトメミドリガイ
- Korean
- 무딘날씬이갯민숭이붙이
Similar species
Tri-banded Taco SlugElysia marginata
Lettuce slugElysia ornata
Halimeda Taco SlugElysia pusilla
Yellow elysiaElysia flava

Furry Taco SlugElysia tomentosa
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.
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