Glycera unicornis

Other invertebrates

Usual depth0–115 m
Water temperature9–29 °C
Best monthsMay
How commonCommon

All species

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 251 records
February: 297 records
March: 593 records
April: 750 records
May: 1,805 records
June: 614 records
July: 373 records
August: 159 records
September: 263 records
October: 139 records
November: 258 records
December: 55 records

Depth and water temperature

Depth

Mostly recorded at 0–115 m · Deepest record: 4,380 m

0–10 m: 686 records
10–20 m: 386 records
20–30 m: 396 records
30–40 m: 290 records
40–50 m: 298 records
50–60 m: 196 records
60–70 m: 114 records
70–80 m: 99 records
80–90 m: 120 records
90–100 m: 122 records
100–110 m: 196 records
110+ m: 448 records

Water temperature

Recorded in surface water of 9–29 °C

8–10 °C: 9 records
10–12 °C: 472 records
12–14 °C: 73 records
14–16 °C: 18 records
16–18 °C: 63 records
18–20 °C: 37 records
20–22 °C: 16 records
22–24 °C: 1 records
24–26 °C: 3 records
26–28 °C: 5 records
28–30 °C: 3 records

Names and classification

Other scientific names: Glycera goesi, Glycera meckelii, Glycera mesnili, Glycera nigripes, Glycera rouxi, Glycera rouxii, Rhynchobolus meckelii

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.
7,069 open-data records from 1818 to 2024.

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