IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Description

  Common names: mud-sucker (English), chupalodo (Espanol), gobio-chupalodo (Espanol)
 
Gillichthys mirabilis Cooper, 1864


Long-jawed mud-sucker


Moderately elongate, body compressed; head large (> 25% TL) broad, depressed; sensory papillae on head small, crowded, númerous; eyes small, far apart; jaws very long - lower extends ½ way to gill opening, upper to pectoral fin; preopercle covered with skin; teeth small, conical, 4-5 rows on each jaw; first dorsal fin low and rounded, VI (IV-VIII) spines; anal fin with short base; pectoral broad, rounded,  top ray not partly free from fin; pelvics form disc, membrane between pelvic fin spines without side lobes; tail rounded; scales small (~ 90 rows along side), imbedded, rough in juveniles, mainly smooth in adults;  narrow strip of scales on top of nape; skin covered with thick mucous.

Brown to blue-black, mottled above, yellowish below; diffuse dark stripe along cheek, dark blotch on operculum; a row of dark blotches midlaterally from operculum to tail base; soft dorsal fine oblique bars, other fins unmarked. Juveniles - 8 bars on body, black blotch at rear of first dorsal fin.

        Size: 21 cm.

        
        Habitat: burrows in shallow mud bottoms in tidal flats and bays, coastal lagoons.

        
        Depth: 0-5 m.

        California to central Baja and the upper and central Gulf of California.
   

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