| Phylum Chordata
> Subphylum Vertebrata > fishes |
Stargazer
Uranoscopus sp.
Family Uranoscopidae
updated
Aug 08
if you
learn only 3 things about them ...
They have venomous spines! Don't touch or kick them!
Most of the fish is usually well hidden under the sand.
They
lure prey towards them with a filament in their mouths. |
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Where
seen? This bizarre pop-eyed fish is sometimes seen on our
Northern shores, usually buried in sand bars and sandy shores near
seagrass areas. Sometimes, dead ones are seen washed ashore.
What are stargazers? Stargazers
belong to the Family Uranoscopidae. According to FishBase:
the family has 8 genera and 50 species found in the Atlantic, Indian
and Pacific oceans. One genus, Astroscopus, has electric organs!
Features: It can grow quite large. One stargazer we saw
was nearly 30cm long! A stargazer is basically a bulky head with a
tiny body. As its name suggests, it has bulbous eyes that stare fixedly
skyward. Its scientific name is derived from the Greek 'ourannos'
which means 'sky' and 'skopein' which means 'to watch'. It has a huge
mouth that also faces upwards, but set in a permanent frown. The mouth
has fringed lips. Although some descriptions say there are two large
spines near the pectoral fins that can inject a painful toxin, others
say these fishes lack any venom-injecting spines.
Species are difficult to differentiate.
What does it eat? The fish lurks
at the sea bottom with most of it hidden in the sand, only its eyes
peeking out at the surface and the huge mouth just beneath the sand.
Here it lies in wait, ready to gulp up unsuspecting fishes, octopus
and squids that wander by. It is said that the fishes only emerge
from hiding at night.
Some species have a worm-like filament on the floor of the mouth.
This bait is wriggled when the mouth is opened, to lure unwary victims
to their sudden deaths. Prey are sucked whole into the enormous mouth
that can extend outwards (protrusible).
Status and threats: Our stargazers are not listed as among
the threatened animals of Singapore. However, like
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.
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Chek Jawa, Apr 03

Chek Jawa, Apr 03

Changi, Jul 11
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Changi, Jul 11
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Protrusible
mouth!
Changi, Jul 11
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Stargazers
on Singapore shores
Changi, Apr
05
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Changi, Apr 05
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Changi, Apr 05
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Chek Jawa,
Apr 03
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Family
Uranoscopidae recorded for Singapore
from
Wee Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity
in Singapore.
in red are those listed among the threatened
animals of Singapore from Ng, P. K. L. & Y. C. Wee, 1994.
The Singapore Red Data Book: Threatened Plants and Animals of Singapore.
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Uranoscopus
cognatus
Uranoscopus japonicus |
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