Arcygobius baliurus (Valenciennes, 1837)
Isthmus goby
Arcygobius baliurus
photo by Allen, G.R.

 Family:  Gobiidae (Gobies), subfamily: Gobiinae
 Max. size:  10.16 cm SL (male/unsexed)
 Environment:  demersal; depth range 3 - 15 m
 Distribution:  Indo-West Pacific.
 Diagnosis:  Dorsal spines (total): 6-7; Dorsal soft rays (total): 9-10; Anal spines: 1-1; Anal soft rays: 8-9. Characterized by semi-translucent grey body with brown and white spotting; lower side of body with row of double blackish spots; pelvic fins united and frenum present; rounded caudal fin, about equal to head length; longitudinal scale series 22-26; ctenoid body scales and on nape; predorsal scales 8-11; cheek and opercle without scales; depth of body 5.5-6.1 in SL (Ref. 90102).
 Biology:  Solitary or in small groups. Inhabits sand-rubble bottoms in 3-15 m (Ref. 90102).
 IUCN Red List Status: Data deficient  (Ref. 96402)
 Threat to humans:  harmless
 Country info:  Museum: Negros Oriental Province, USNM 51944 (holotype of Gnatholepis calliurus Jordan & Seale, 1905) (Ref. 50838).

 Entered by: Garilao, Cristina V. - 03.06.99
 Modified by: Capuli, Estelita Emily - 05.12.13

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