Tag Archive: dartfishes

Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Perciformes (Perch-likes)
Family: Microdesmidae (Wormfishes)

Genus/species: Ptereleotris zebra

Zebra Gobie2985357026_450274646b_b

GENERAL CHARACTERISTICS: Elongated and compressed body with a Yellowish to greenish gray color and a series of narrow orange to pinkish bars edged with blue or purple along the sides A broad blue-edged dark reddish to purple area is below the eye. A chin barbel is
followed by a median longitudinal fold. Max length: 4.7 inches.

DISTRIBUTION/HABITAT: Tropical Indo-Pacific: Red Sea and islands in the western Indian Ocean to the Line and Marquesan Islands, south to the southern Great Barrier Reef. Found over exposed seaward reefs in relatively shallow water. Depth range 2 – 31 m (6-100 feet).

DIET: Zooplankton. Small schools hover several feet above the substrate capturing morsels the current carries to them.

CONSERVATION: Not evaluated

REMARKS: The common name of the genus is “dartfish,” derived from the group’s habit of darting between rocks or into rubble when frightened.

Philippine Coral Reef PR04


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Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Perciformes (Perch-likes)
Family: Ptereleotridae (Dartfishes)

Genus/species: Nemateleotris helfrichi


GENERAL CHARACTERISTICS: Goby-like fishes but like the other fire fishes has an elongated two part dorsal fin.They have long anal fins and an upturned mouth. The head is yellow with a purple forehead, and the body is varying shades of purple and white. Length to 2.5 inches.

DISTRIBUTION/HABITAT: Pacific Ocean: eastwards to the Tuamoto Islands, north to the Ryukyu Islands in relatively deep water. Found over small patches of sand, rubble, or hard open bottoms of steep seaward reefs. Rarely found in less than 40 m (130 ft).

DIET IN THE WILD: Carnivore.


REMARKS: When approached by predators they dart into burrows or under rocks.IMG_6506

Water Planet Defenses WP33

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