Pseudogobius javanicus (Bleeker, 1856)

Bia Goby of streams, 

Pseudogobius javanicus
photo by Ratmuangkhwang, S.

 Family:  Gobiidae (Gobies), subfamily: Gobionellinae
 Max. size:  6 cm SL (male/unsexed)
 Environment:  benthopelagic; 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  (Ref. 96402)
 Threat to humans:  harmless
 Country info:  Specimens were collected in 1993 from Kiga creek and Ambacan River at Baybay, Leyte and Inuntan, Basey River, Samar (Ref. 7223). Collected from Malabon, Manila; Capiz and Iloilo, Panay (Ref. 439); and Lake Taal (Ref. 439, 13446, 80679). Reported from rivers in Luzon, Mindanao, Panay, Negros, Mindoro, Busuanga, and Sulu (Ref. 280). Type locality of Vaimosa piapensis: Piapi Creek, Dumaguete, Negros Oriental (Ref. 43716). Also Ref. 94476.

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

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