fishes text index | photo index
Phylum Chordata > Subphylum Vertebrate > fishes
Photo index of fishes on Singapore shores
Long fishes: resembles eels, snakes, worms


Sand diver
Family Trichonotidae

Worm-eel
Muraenichthys sp.

Estuarine moray eel
Gymnothorax tile

Evermann's snake-eel
Ophichthus lithinus

Mangrove snake-eel
awaiting identification
8-10cm. Long slender body, pointed snout. Hides in sandy areas near reefs. Sometimes seen on our Southern shores. 10-12cm, to 20cm. Body long and worm-like. No pectoral or tail fins, no scales. The tip of the tail is sharp. Small eyes and mouth. Coral rubble, living reefs. Commonly seen on our Southern shores. 20-30cm, to 60cm. Body slender. Bluish grey, brown to reddish-brown with numerous yellowish-white speckles. No pectoral fins, no scales. Coral rubble, near reefs. Sometimes seen on some of our shores. 30-40cm. Body long and snake-like. Small pectoral fins. Sharp tail tip. Small eyes and mouth. Coral rubble, living reefs. Sometimes seen on our Southern shores. 30cm. Body long and snake-like. Small pectoral fins. harp tail tip. Small eyes and mouth. Mangroves.

Carpet eel-blenny
Congrogadus subducens

Brown-spotted moray eel
Gymnothorax reevesii

Brown moray eel
Uropterygius concolor
 
10-15cm, to 30cm. Floral markings. Has pectoral fins. Tail is eel-like with the dorsal, anal and tail fins continuous. Coral rubble. Commonly seen on many of our shores. 30cm, to 60cm. Body thick. Brown with dark brown spots. No pectoral fins, no scales. Sometimes seen on some undisturbed shores To 50cm. Plain brown without spots. No pectoral fins, no scales. Rarely seen.   Up to 1m. Various kinds seen on our Southern shores.

Black
eeltail catfish

Plotosus canius

Striped
eeltail catfish

Plotosus lineatus

Sea catfish
Family Ariidae

Painted sweetlips
Diagramma pictum
 
4-5cm, to 90cm-1.5m. Eel-like tail, plain dusky-brown to black colour with a black dorsal fin tip and a pale belly. In adults, the long barbels can reach past the eyes. Near seagrasses. Commonly seen on our Northern shores. 2-15cm, to 90cm-1.5m. Eel-like tail, two or more white lines on dark body. The lines are faded in old adults. In adults, the long barbels don't reach past the eyes. Among seagrasses, coral rubble and reefs. Commonly seen on our Southern shores. To 20-30cm. Tail fin forked. 3, rarely 2 pairs of barbels. Not commonly seen on the intertidal, but sometimes caught by fishermen. 10cm. Juveniles are yellow with two broad black stripes. Sometimes seen on some of shores.  

Yellow cuskeel
Dinematichthys iluocoeteoides
 

Variable fang-blenny
Petroscirtes variabilis

Oyster blenny
Omobranchus sp.

Rockskipper blenny
Entomacrodus sp.
5-7cm. Body long flattened with blunt head. Usually orangey pink. Small tail fin separated from long dorsal and anal fins. Coral rubble near seagrasses. Sometimes seen on some of our shores.   5-7cm. Body long flattened with blunt head. Among seagrasses. Sometimes seen on some of our shores. 5cm. Body long flattened with blunt head. Among encrusted rocks and sewalls, surviving even out of water. Sometimes seen on our shores. 5cm. Body long flattened with blunt head. Among encrusted rocks and sewalls, surviving even out of water. Sometimes seen on our shores.

Head-stripe goby
Amblygobius
stethophthalmus

Pink-speckled shrimp-goby
Cryptocentrus
leptocephalus

Mural glider-goby
Valenciennea muralis

Saddled shrimp-goby
Cryptocentrus maudae
 
6-8cm. Bright and colourful markings especially on the head. Coral rubble near reefs. Sometimes seen on our shores. 4-6cm. 6 broad oblique bars on the body, many pink and blue spots on the head. Lives with a snapping shrimp. Sandy, silty areas near reefs. Sometimes seen on our Southern shores. 6-10cm. Two bright orange stripes. Near reefs. Sometimes seen on our shores. 5-7cm. Adults with 5 or more pale saddles, dark spots along the sides and speckles all over. Lives with a snapping shrimp. Sometimes seen on our Southern shores.  
         

These are NOT fishes

Banded file snake
Acrochordus granulatus

Dog-faced water snake
Cerberus rhynchops

Yellow-lipped sea snake
Lauticauda colubrina

Ribbon worm
Phylum Nemertea

Peanut worm
Phylum Spincula
1m or more. Black or brown bands on white or beige, bands are broad on the top but narrows at the sides. Near mangroves in seagrass areas. Sometimes seen on our Northern shores. About 1m. Irregular bands of grey, brown or olive on beige. Dark streak through the bulging eye to the neck. In mangroves. Commonly seen on our Northern shores, sometimes on our other shores too. About 1.4m. Bluish-grey, smooth scales and regularly spaced black bands. Upper lips yellow, tail flattened into a paddle-like shape. Coral reefs and rubble. Sometimes seen on our Southern shores. Up to 1m long. Soft bodied, these are worms. 5-10cm. Unsegmented worm. Ridges on body like the texture of a peanut shell. It is a worm.

how to tell apart



photo index of
fishes on this site
all fishes

typical fish-shape

  small < 5cm
medium 5-10cm
large > 10cm

globular
boxy, stone-like

flattened fishes
flattened downwards
  sting rays
others

disk-shaped
flattened sideways

long
  eel-, worm-like
stick-like

others

  mudskippers
odd shaped
living w others
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