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Elysia atroviridis

  • Molluscs
  • IUCN: Not evaluated
  • Usual depth2–15 m
  • Water temperature13–23 °C
  • Best monthsJanuary, February, and March
  • How commonRare
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About this species

Elysia atroviridis is a benthic species of sea slug belonging to the family Plakobranchidae native to the northwest pacific. E. atroviridis slugs live up to three meters deep, and are generally dark green in skin colour with small, black spots all around the body. E. atroviridis is a member of the superorder Sacoglossa, and thus possesses the ability to perform kleptoplasty. E. atroviridis and Elysia marginata are notable for possessing the ability to completely autotomize their bodies and grow them back within 20 days.

Text from the Wikipedia article “Elysia atroviridis”, 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: 24 records
  • February: 27 records
  • March: 31 records
  • April: 20 records
  • May: 17 records
  • June: 10 records
  • July: 10 records
  • August: 3 records
  • September: 2 records
  • October: 1 records
  • November: 4 records
  • December: 10 records

Depth and water temperature

Depth

Mostly recorded at 2–15 m · Deepest record: 25 m

  • 0–10 m: 74 records
  • 10–20 m: 44 records
  • 20–30 m: 4 records

Water temperature

Recorded in surface water of 13–23 °C

  • 12–14 °C: 6 records
  • 14–16 °C: 0 records
  • 16–18 °C: 4 records
  • 18–20 °C: 51 records
  • 20–22 °C: 72 records
  • 22–24 °C: 6 records

Names and classification

Names in 2 more languages
Japanese
クロミドリガイ
Korean
초록날씬이갯민숭이붙이

Other scientific names: Elysia setoensis

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).
  • 215 open-data records from 1969 to 2026.
  • Species data updated November 2, 2026.

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