Black-edged Sea Hare

Aplysia nigrocincta

Molluscs
IUCN: Not evaluated

Usual depth3–15 m
Water temperature19–29 °C
Best monthsMarch, April, and May
How commonRare

Photo credit: no rights reserved · CC0 1.0 · iNaturalist

About this species

Aplysia nigrocincta, the corn-bearing aplysia, is a species of gastropod mollusc in the genus Aplysia, family Aplysiidae.

Text from the Wikipedia article “Aplysia nigrocincta”, 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: 26 records
February: 57 records
March: 76 records
April: 80 records
May: 64 records
June: 50 records
July: 37 records
August: 26 records
September: 59 records
October: 64 records
November: 34 records
December: 40 records

Depth and water temperature

Depth

Mostly recorded at 3–15 m · Deepest record: 77.5 m

0–10 m: 96 records
10–20 m: 79 records
20–30 m: 7 records
30–40 m: 0 records
40–50 m: 0 records
50–60 m: 0 records
60–70 m: 0 records
70–80 m: 1 records

Water temperature

Recorded in surface water of 19–29 °C

18–20 °C: 10 records
20–22 °C: 48 records
22–24 °C: 16 records
24–26 °C: 74 records
26–28 °C: 15 records
28–30 °C: 45 records

Photos

(c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) · CC BY · iNaturalist
(c) Susan Prior, some rights reserved (CC BY) · CC BY · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist
(c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) · CC BY · iNaturalist
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist

Names and classification

English: Black-edged Sea Hare

Names in 2 more languages

French: Aplysie à bords noirs
Simplified Chinese: 黑邊海兔

Similar species

Ocellate Sea Hare
Aplysia argus
Large-spotted sea hare
Aplysia dactylomela
Sucker-foot Sea Hare
Aplysia juliana
Aplysia kurodai
Dwarf sea hare
Aplysia parvula
Reticulated sea hare
Aplysia reticulata

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).
212 open-data records from 1986 to 2026.
Species data updated October 26, 2026.

Log what you see on your next dive

The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.

Join the waitlist