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Quietula guaymasiae O. P. Jenkins and B. W. Evermann, 1889
GUAYMAS GOBY
Life   Vertebrata   Fish   Gobiidae   Quietula

Quietula guaymasiae
© Copyright Photographer/SFTEP, 2002 · 0
Quietula guaymasiae

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Quietula guaymasiae
© Copyright Photographer/SFTEP, 2002 · 0
Quietula guaymasiae

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IDnature guide
Overview
Main identification features
  • head narrow; knob on snout
  • white spot behind eye
  • back: 6 double white spots
  • top jaw ~reaches gill opening
Elongate, slender (depth 14% of total length), little compressed; head long (28% total length), narrow, not depressed; knob on snout; eye above mid-line, 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 rakers on 1st gill arch; pelvics fused to form disc, about equal pectoral length; dorsal V + I, 14; 2 dorsals separated by length of snout, rays of 2nd dorsal about equal lengths; anal I, 12-15, long base; pectorals not reaching end of pelvics, ~23 rays; pelvics relatively long, reaching nearly to anus; scales small, imbedded, slightly visible only on sides; no lateral line.

Adult: 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).


Attributes

Abundance: Common.

Cites: Not listed.

Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap).

Depth Range Max: 5 m.

Depth Range Min: 0 m.

Diet: mobile benthic worms; mobile benthic gastropods/bivalves; mobile benthic crustacea (shrimps/crabs).

Eastern Pacific Range: Northern limit=32; Southern limit=25; Western limit=-115; Eastern limit=-111; Latitudinal range=7; Longitudinal range=4.

Egg Type: Benthic; Pelagic larva.

Feeding Group: Carnivore.

FishBase Habitat: Demersal.

Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.

Habitat: Estuary; Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Sand & gravel.

Inshore Offshore: Inshore; Inshore Only.

IUCN Red List: Not evaluated / Listed.

Length Max: 8.5 cm.

Regional Endemism: Continent only; Continent; TEP endemic; Continental TEP endemic; Cortez province endemic; All species.

Residency: Resident.

Salinity: Brackish; Non Marine.

Water Column Position: Bottom; Bottom only;

Links to other sites


References
  • Birdsong , R. S. , Murdy , E. O. and Pezold, F. L., 1988., A study of the vertebral column and median fin osteology in gobioid fishes with comments on gobioid relationships., Bull. Mar. Sci., 42:174-214.
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • Jenkins , O.P. and Evermann, B.W., 1889., Description of eighteen new species of fishes from the Gulf of California., Proc. U.S. Nat. Mus., 11:137-158.


Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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