Skip to content

DiscoverSpeciesCrustaceans

Hardshell shrimp

Aegaeon lacazei

  • Crustaceans
  • IUCN: Not evaluated
  • Usual depth159–628 m
  • Water temperature15–29 °C
  • Best monthsMay
  • How commonOccasional
All species

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

  • January: 1 records
  • February: 3 records
  • March: 2 records
  • April: 36 records
  • May: 275 records
  • June: 88 records
  • July: 1 records
  • August: 3 records
  • September: 2 records
  • October: 6 records
  • November: 12 records
  • December: 14 records

Depth and water temperature

Depth

Mostly recorded at 159–628 m · Deepest record: 1,413 m

  • 20–30 m: 1 records
  • 30–40 m: 1 records
  • 40–50 m: 2 records
  • 50–60 m: 1 records
  • 60–70 m: 3 records
  • 70–80 m: 2 records
  • 80–90 m: 1 records
  • 90–100 m: 2 records
  • 100–110 m: 6 records
  • 110–120 m: 8 records
  • 120–130 m: 3 records
  • 130+ m: 420 records

Water temperature

Recorded in surface water of 15–29 °C

  • 14–16 °C: 5 records
  • 16–18 °C: 67 records
  • 18–20 °C: 363 records
  • 20–22 °C: 18 records
  • 22–24 °C: 6 records
  • 24–26 °C: 6 records
  • 26–28 °C: 3 records
  • 28–30 °C: 16 records

Names and classification

English
Hardshell shrimp
Names in 4 more languages
Spanish
Camarón de casco
French
Crevette crâne, Crevette crâne (La)
Japanese
トゲイワエビ
Korean
톱등자주새우

Other scientific names: Aegeon brendani, Aegeon lacazei, Crangon lacazei, Pontocaris habereri, Pontocaris lacazei

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.
  • Conservation status as published by GBIF (IUCN Red List).
  • 487 open-data records from 1909 to 2015.
  • 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

DiveHive uses necessary cookies to work. With your permission we also use analytics to see which pages help. Analytics is off until you say yes, and we never record what you type.

  • NecessaryAlways on: your choice, security.Always on
  • AnalyticsOff unless you accept.Off
Privacy policy