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Species: Quietula guaymasiae, Guaymas goby

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head narrow; knob on snout
white spot behind eye
back: 6 double white spots
top jaw ~ reaches gill opening

Quietula guaymasiae Jenkins & Evermann, 1889

Guaymas goby

Elongate, slender (depth 14% of TL), little compressed; head long (28% TL), narrow, a little depressed; knob on snout; eye on top of head, a little shorter than snout; between eyes 2/3 eye diameter; upper profile gently convex from snout to nape, straight to dorsal origin, gently convex to tail base, lower profile straight; mouth large, upper jaw bone very long, nearly reaching gill opening, broadest in middle, tapering to blunt point at rear; teeth in single series, on lower jaw and front of upper, slightly curved; tongue round tip; 12 short, blunt gill rakers; dorsal V + I, 14, 2 dorsals separated by length of snout, rays of 2nd  dorsal about equal lengths; anal I, 12-15, long base; pelvics fused to form disc, relatively long, reaching nearly to anus; pectorals relatively short, not reaching end of pelvics, ~ 23 rays; scales small, smooth, imbedded, slightly visible only on sides, ~ 50 irregular rows along side.

Grey to mottled above, whitish below, 6 double white spots along side of back, alternating with about 7 blackish areas, last one on tail base; white spot behind eye; cheeks with 2 dark bands obliquely down and back from eye; dorsal fins with 4 longitudinal series of dark spots; tail with 5-6 wavy bars; pectorals and pelvics plain; anal plain, without dark band.

Size: 8.5 cm.

Habitat: lagoons and river mouths.

Depth: 0-5 m.

Endemic to the Gulf of California (west, north and central-east).


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Salinity
  • Non Marine
  • Brackish
Inshore/Offshore
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom only
  • Bottom
Habitat
  • Estuary
  • Soft bottom only
  • Sand & gravel
  • Mud
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Carnivore
Diet
  • Mobile benthic gastropods/bivalves
  • Mobile benthic worms
  • No Data
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Pelagic larva
  • Benthic
  • No data
Global Endemism
  • Tropical Eastern Pacific (TEP) endemic
  • All species
  • East Pacific endemic
Regional Endemism
  • TEP endemic
  • Continental TEP endemic
  • Cortez province endemic
  • Continent only
  • Continent
  • All species
Residency
  • Resident
Climate Zone
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • North Temperate (Californian Province &/or Northern Gulf of California)
IUCN Red List
  • Near threatened
  • Listed
CITES
  • Not listed
Length Max
  • 8.5
Depth Range Min
  • 0
Depth Range Max
  • 5