IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Description

  Common names: goby (English), gobio (Espanol)
 
Gobiosoma paradoxum (Günther, 1861)


Paradox goby


Head rounded; mouth large, oblique, lower jaw heavy, slightly projecting; snout profile slopes abruptly down; narrow between eyes (< ½ eye diameter); no barbells on head; dorsal fin VII (1st  spine filamentous in male) + 12 (12-13) rays; anal fin 10-(10-11) rays; pectoral 18 (16-19) rays; pelvics fused in disc; male genital papilla slender, pointed; body scaly behind level of middle of soft dorsal, with triangular extension of scaly area forward along mid-flank to a level between the front of the soft dorsal & the middle of the spiny dorsal, usually an isolated oblong patch of scales under the pectoral; 13-20 rows of mid-lateral scales; 4-6 large, rough scales on base of tail fin.


Head and body dark grey-brown to reddish, with many small pale spots; head with 3 small black spots - behind eye, at top-rear of preopercle & of operculum); upper body with 5-8 faint bars; flank with series short black dashes; Male  fins dark to black, with 3 black bands & white 1st  spine on 1st  dorsal, 2 black bands on 2nd  dorsal, anal dark with white tip, pelvic margin white. Female 2 oblique black bands from eye down below bottom jaw, oblique black bands on lower preopercle and opercle to throat, dorsals with 3 lines of black spots; tail with 6-7 wavy dark bars, pectoral & pelvic with faint bars.

Size: 4.7 cm.

Habitat: rocky and rubble bottoms.

Depth: 0-5 m.

The mouth of the Gulf of California to Ecuador.
   

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© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

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