FishBase | Search | All Living Things

Gobulus hancocki Ginsburg, 1938
Sand-top goby

Life   Vertebrata   Fish   Gobiidae   Gobulus

Gobulus hancocki
© Copyright Ross Robertson, 2006 · 12
Gobulus hancocki

Click on map for details about points.

IDnature guides


    We parsed the following live from the Web into this page. Such content is managed by its original site and not cached on Discover Life. Please send feedback and corrections directly to the source. See original regarding copyrights and terms of use.
  • FishBase

80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2
Set display option above.
Click on images to enlarge.
Gobulus hancocki
© Copyright Photographer/SFTEP, 2002 · 0
Gobulus hancocki
Gobulus hancocki
© Copyright Photographer/SFTEP, 2002 · 0
Gobulus hancocki

Gobulus hancocki
© Copyright Photographer/SFTEP, 2002 · 0
Gobulus hancocki

Main identification features
  • upper 1/3 white + dark spots , lower 2/3 dark brown
  • tail fin base - dark crescent;fins clear
  • dorsal fin fins separate
Head noticeably flattened; head pores absent; body slender, compressed; eye small (<80% of snout length); dorsal rays VII + I, 10-11(usually 11), two fins separate; anal rays I, 9-10 (usually 10); pectoral rays 15-17 (usually 16); pelvic fins fused to form flat, plate-like structure, with a small membrane between the pelvic spines; scales entirely absent on head and body.

Dark brown lower 2/3 of head and body, dark pigment reaches well above midline of body; whitish above mottled with brown spots; whitish on belly; dark crescent shaped bar on base of tail fin in most specimens; dorsal, anal and pelvic fins clear.

Size: attains 2.5 cm.

Inhabits sand-rubble bottoms close to reefs.

Depth: 1-20 m.

Central Gulf of California to Colombia, Cocos Island.

Abundance: Common.
Cites: Not listed.
Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 20 m.
Depth Range Min: 1 m.
Diet: mobile benthic worms; mobile benthic crustacea (shrimps/crabs); mobile benthic gastropods/bivalves.
Eastern Pacific Range: Northern limit=29; Southern limit=3; Western limit=-112; Eastern limit=-78; Latitudinal range=26; Longitudinal range=34.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Reef associated (reef + edges-water column & soft bottom); Sand & gravel; Corals; Reef and soft bottom; Reef (rock &/or coral).
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 2.5 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); TEP endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;

Scientific source:

Links to other sites

  • 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.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • Galván-Magaña, F., Gutiérrez-Sánchez, F., Abitia-Cárdenas, L.A., Rodríguez-Romero, J., 2000., The distribution and affinities of the shore fishes of the Baja California Sur lagoons. In Aquatic Ecosystems of Mexico: Status and Scope. Eds. M. Manuwar, S.G. Lawrence, I.F. Manuwar & D.F. Malley. Ecovision World Monograph Series., Backhuys Publishers:383-398.
  • Ginsburg, I., 1933., Descriptions of new and imperfectly known species and genera of gobioid and pleuronectid fishes in the United States National Museum., Proc. U.S. Nat. Mus., 82(20):1-23.
  • Ginsburg, I., 1938., Eight new species of gobioid fishes from the American Pacific coast., Allan Hancock Pacific Expeditions, 2(7):109-121.
  • Hoese , D. F. and Reader, S., 2001., Revision of the eastern Pacific species of Gobulus (Perciformes: Gobiidae), with description of a new species., Revista de Biologia Tropical, 49(Supplement 1):169-176.
  • Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26.
  • Rubio, E.A., 1986., Notas sobre la ictiofauna de la Isla de Gorgona, Colombia., Boletin Ecotropica. Univ. Bog. Jorge Tadeo Lozano, 13:86-112.
  • Thomson , D.A. , Findley , L.T. and Kerstitch, A.N., 2000., Reef fishes of the Sea of Cortez., University of Texas Press(Revised Ed.):353.
  • Van der Heiden , A. M. and Findley, L. T., 1988., Lista de los peces marinos del sur de Sinaloa, México., Anales del Centro de Ciencias del Mar y Limnologia de la Universidad Autonoma Nacional de Mexico, 15:209-224.


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

Supported by
go to Discover Life's Facebook group

Following modified from FishBase
   Top | See original

&pull 20q v5.145 20180528: Error 301 Moved Permanently

Updated: 2021-03-05 11:10:12 gmt
FishBase | Search | All Living Things | Top
© Designed by The Polistes Corporation