Oriental grass shrimp

Palaemon macrodactylus

Crustaceans
IUCN: Not evaluated

Usual depth1–14 m
Water temperature9–28 °C
Best monthsJuly and August
How commonOccasional

All species

Photo credit: (c) Jennifer Kepler, some rights reserved (CC BY) · CC BY · iNaturalist

About this species

Palaemon macrodactylus is a species of shrimp of the family Palaemonidae.

Text from the Wikipedia article “Palaemon macrodactylus”, 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: 22 records
February: 7 records
March: 11 records
April: 34 records
May: 40 records
June: 35 records
July: 113 records
August: 117 records
September: 50 records
October: 50 records
November: 21 records
December: 5 records

Depth and water temperature

Depth

Mostly recorded at 1–14 m · Deepest record: 24.3 m

0–10 m: 45 records
10–20 m: 7 records
20–30 m: 1 records

Water temperature

Recorded in surface water of 9–28 °C

8–10 °C: 10 records
10–12 °C: 120 records
12–14 °C: 63 records
14–16 °C: 4 records
16–18 °C: 5 records
18–20 °C: 26 records
20–22 °C: 2 records
22–24 °C: 1 records
24–26 °C: 1 records
26–28 °C: 2 records
28–30 °C: 1 records

Photos

(c) Jennifer Kepler, some rights reserved (CC BY) · CC BY · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist
(c) Zakqary Roy, some rights reserved (CC BY) · CC BY · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist
(c) Ken-ichi Ueda, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Konshau Duman, some rights reserved (CC BY) · CC BY · iNaturalist
no rights reserved · CC0 1.0 · iNaturalist

Names and classification

English: Oriental grass shrimp, Oriental prawn, Oriental shrimp, Asian Shrimp, Migrant prawn, oriental grass shrimp, oriental shrimp, Oriental shrimp, Oriental grass shrimp, Migrant prawn

Names in 6 more languages

German: Wander-Felsengarnele, Wander-Felsgarnele
Spanish: Camarón emigrante
French: Bouquet migrateur, Bouquet migrateur (Le), Crevette à grandes pinces, Crevette orientale, crevette à grandes pinces, Crevette à gros doigts
Japanese: フトユビスジエビ, ユビナガスジエビ, ユビナガスジエビ［フトユビスジエビ］
Korean: 붉은줄참새우
Simplified Chinese: 巨指長臂蝦

Similar species

Common prawn
Palaemon serratus
Chinese ditch prawn
Palaemon gravieri
striped river prawn
Palaemon intermedius
Red-handed Shrimp
Palaemon serenus
Glass Shrimp
Palaemon affinis
Feeble shrimp
Palaemon debilis

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).
608 open-data records from 1957 to 2024.
Species data updated November 5, 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