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Elysia obtusa

  • Molluscs
  • IUCN: Not evaluated
  • Usual depth2–15 m
  • Water temperature18–29 °C
  • Best monthsApril, May, and June
  • How commonRare
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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

  • 0–10 m: 64 records
  • 10–20 m: 32 records
  • 20–30 m: 2 records

Water temperature

Recorded in surface water of 18–29 °C

  • 16–18 °C: 3 records
  • 18–20 °C: 19 records
  • 20–22 °C: 43 records
  • 22–24 °C: 13 records
  • 24–26 °C: 23 records
  • 26–28 °C: 10 records
  • 28–30 °C: 16 records

Names and classification

Names in 2 more languages
Japanese
オトメミドリガイ
Korean
무딘날씬이갯민숭이붙이

Similar species

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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