Pseudogobius javanicus (Bleeker, 1856)
Pseudogobius javanicus
photo by Ratmuangkhwang, S.

Family:  Gobiidae (Gobies), subfamily: Gobionellinae
Max. size:  6 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater; brackish; marine; pH range: 7; dH range: 10 - 15, amphidromous
Distribution:  Indo-West Pacific: India to Australia and northward to China.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 7-7; Anal spines: 1-1; Anal soft rays: 7-8; Vertebrae: 26-26. Color when fresh greenish and somewhat transparent. Body with numerous minute spots; 1st dorsal with a black blotch; caudal fin base with 2 vertically black spots. Longitudinal scales 27-28; transverse scales 7; predorsal scales 6-7. Maxillary extends to the vertical of anterial half of eye, upper jaw prominent; lips thin. Snout obtuse, overhanging the upper lips. Head scaled above behind eye and opercle. Scales on head, breast and belly cycloid; on lateral side of body ctenoid. Middle spines of 1st dorsal longest; 2nd dorsal and anal higher than 1st dorsal; pectoral and ventral about as long as head (Ref. 43550).
Biology:  Adults occurs in the sea, estuaries and rivers (Ref. 4833). Feed on small fishes and invertebrates (Ref. 12693).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Capuli, Estelita Emily - 21.07.94
Modified by: Luna, Susan M. - 02.10.07
Checked by: Torres, Armi G. - 13.08.01

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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