| Glass and commensal
learn only 3 things about them ...
They live on other animals such as sea anemones and hard
They are often found in pairs.
are an excellent example of commensalism.
Where seen? These transparent
shrimps are often seen living on other animals such as sea anemones,
sea cucumbers, and hard and soft corals. Some are also seen in small
groups on the ground and among seaweeds. These shrimps are hard to
spot as they are small and transparent; and usually only active at
night and when their host is submerged.
Features: 1-3cm long. These little
shrimps are usually transparent. They are thus sometimes also called
glass shrimps. Sometimes, all that can be seen of them are their beady
little eyes! At night, the shine from their eyes make them easy to
spot. Some have white markings or a fine stripe along the body.
Human uses: Unfortunately, these
amazing shrimps are popular in the live aquarium trade and thus harvested
from wild reefs to supply the trade.
Status and threats: Some of our
commensal shrimps are listed as 'Vulnerable' on the Red List of threatened
animals of Singapore. Llike other creatures of the intertidal zone,
they are affected by human activities such as reclamation and pollution.
Trampling by careless visitors and over-collection by hobbyists also
have an impact on local populations.
|Some commensal shrips
About 1cm, several seen on
Beting Bronok, Aug 05
About 1cm, a
pair seen on
Changi, May 05
|Glass and commensal
shrimps on Singapore shores
|Family Palaeomonidae recorded for Singapore
Wee Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity
in red are those listed among the threatened
animals of Singapore from Davison, G.W. H. and P. K.
L. Ng and Ho Hua Chew, 2008. The Singapore Red Data Book: Threatened
plants and animals of Singapore
+Other additions (Singapore Biodiversity Record, etc)
||Glass and commensal
shrimps commonly seen awaiting identification
Species are difficult to positively identify without close
On this website, they are grouped by external features for convenience
^Ancylomenes aesopius=Periclimenes aesopius
+Ancylomenes holthuisi ('Gelek'
anemone shrimp)=Periclimenes holthuisi
Coralliocaris gaminea (Machine
^Cuapetes amymone=Periclimenes amymone
^Cuapetes calmani=Periclimenes calmani
^Cuapetes elegans=Periclimenes elegans
^Cuapetes grandis=Periclimenes grandis
johnsoni (Seagrass shrimp)=*Periclimenes johnsoni (VU: Vulnerable)
^Harpilius lutescens=Periclimenes lutescens
Macrobrachium geron=^Macrobrachium malayanum
Macrobrachium idae (NE:
Presumed nationally extinct)
Macrobrachium latidactylus (NE:
Presumed nationally extinct)
Macrobrachium platycheles (CR: Critically endangered)
galah) (NE: Presumed nationally extinct)
*Palaemon sp. (Glass shrimp)
Palaemonella vetigialis=^Palaemonella rotumana
^Periclimenella spinifera=Periclimenes spiniferus
Periclimenes brevicarpalis (Peacock-tail anemone shrimp)
*Periclimenes cristimanus (Black
urchin shrimp) (VU: Vulnerable)
^Urocaridella urocaridella=Leander urocaridella
- Toh Chay Hoon. 20 December 2013. Shrimps and saddleback anemonefish on carpet anemone off Pulau Hantu: Holthuis’s anemone shrimp, Periclimenes holthuisi and Saddleback anemonefish, Amphiprion polymnus. Singapore Biodiversity Records 2013: 126-127.
- Chou, L.
M., 1998. A Guide to the Coral Reef Life of Singapore.
Singapore Science Centre. 128 pages.
- Lim, S.,
P. Ng, L. Tan, & W. Y. Chin, 1994. Rhythm of the Sea: The Life
and Times of Labrador Beach. Division of Biology, School of
Science, Nanyang Technological University & Department of Zoology,
the National University of Singapore. 160 pp.
- Wee Y.C.
and Peter K. L. Ng. 1994. A First Look at Biodiversity in Singapore.
National Council on the Environment. 163pp.
G.W. H. and P. K. L. Ng and Ho Hua Chew, 2008. The Singapore
Red Data Book: Threatened plants and animals of Singapore.
Nature Society (Singapore). 285 pp.
Helmut, 2001. Crustacea
Guide of the World: Atlantic Ocean, Indian Ocean, Pacific Ocean
IKAN-Unterwasserachiv, Frankfurt. 321 pp.