Gobius geniporus Valenciennes, 1837

Common names: English: Slender goby
German: Schlankgrundel

Common synonyms:
Gobius arenae
Bath, 1972.

Length: 12 - 16 cm.

Sandy colored with a row of large dark spots. Dark spot on cheek. Pupil often appears greenish. Male dark during spawning season but not black like G. niger.
Juveniles (5 - 6 cm): Brown line from snout through the eyes and beyond (similar to G. gasterveni). 3 dark rectangular patterns around the eyes. They were described as G. arenae.

D1 rounded, rays little longer than membrane. Pelvic disk truncate. Similar to G. niger but slender.
Praedorsal area and nape scaled.
50-55 scales in lateral series.
Fins: D1 VI; D2 I+12-14; A I+11-12; P 17-19.


Spawning season: April and May.

1 - 30 m. Sandy bottoms. Usually rests near of its cavity. Juveniles on open sand without protection. Avoids polluted areas and brackish waters. Quite common.

Gobius geniporus
Photograph: Robert A. Patzner ©
Ibiza, Baleares, 12 m depth, September 1995


Species list
General info


Mediterranean; probably not in southern part.




Literature on Gobius geniporus

Bath H., 1972: Gobius arenae, eine neue Meergrundel aus dem Mittelmeer. Senckenb. Biol. 53(5/6) 349-355

Bilecenoglu M., Taskavak E., Mater S. 6 Kaya M., 2002: Checklist of the marine fishes of Turkey. Zootaxa 113: 1-194.

Francour P., Bodilis P., Cottalorda J.M., Seytre C. 2010. Inventaire des Gobiidae dans la Réserve Naturelle de Scandola (Corse) et à proximité de ses limites. Contrat Parc Naturel Régional de la Corse. Université de Nice-Sophia Antipolis, ECOMERS publ., Nice: 1-54.

Kovacic M., 2005: An annotated checklist of the family Gobiidae in the Adriatic Sea. Annales Ser. hist. nat. 15: 1-24.

Kovacic M., 2020: Checklist of gobies (Teleostei: Gobiidae) of the Mediterranean Sea and a key for species identification. Zootaxa 4877: 075-101.

Kovacic M., Miletic M. & Papageorgiou N., 2011: A first checklist of gobies from Crete with ten new records. Cybium 35: 245-253.

Kovacic M. & Patzner R.A., 2011: North-Eastern Atlantic and Mediterranean Gobies. In: The Biology of Gobies. (Eds: Patzner R.A. et al.) Science Publishers: 177-206.

Lombarte A., Miletic M. & Kovacic M. et al., 2014: Identifying Mediterranean Sea gobies using otoliths. 5th Int. symp. fish otolith res. appl., Peguera, Mallorca: Poster.

Louisy P., 2002: Meeresfische, Westeuropa, Mittelmeer. Ulmer, Stuttgart.

Miller P.J., 1986: Gobiidae. In: Fishes of the North-eastern Atlantic and the Mediterranean. Volume III. (Eds.: Whitehead P.J.P. et al.) pp. 1019-1085. UNESCO, Paris.

Padoa E., 1953: Sottordine Gobiiformes. Famiglia Gobiidae in uova, larve e stadi giovanili di Teleostei. Fauna Flora Golfo Napoli, 38: 648-678.

Patzner R.A. & H. Moosleitner, 1997: Die Grundeln des Mittelmeeres. Teil 2. Große Grundeln des Weichbodens 1. Das Aquarium 342: 43-46.

Valenciennes A., 1837: Ichthyologie des Iles Canaries, ou histoire naturelle des poissons rapportes par MM. Webb et Berthelot. In: P. B. Webb et S. Berthelot, Histoire naturelle des Iles Canaries. Paris 2: 1-109, (plates: 1, 3-4, 8, 11-12).



Photographs of Gobius geniporus

Gobius geniporus
Ibiza, Baleares, 18 m depth, September 1990
Photograph: Robert A. Patzner ©
Gobius geniporus
Italy, Thyrhennian Sea, 12 m depth, September 1998
Photograph: Robert A. Patzner ©
Gobius geniporus
Adriatic Sea, Croatia, 8 m depth, June 1998
Photograph: Robert A. Patzner ©
Gobius geniporus
Southern France, Banyuls,  8 m depth,Sept. 1990, during night
Photograph: Robert A. Patzner ©




Drawings of Gobius geniporus

Drawings from Miller (1986)



Copyright © 2016 - Robert A. Patzner, Department of Ecology and Evolution, Univ. Salzburg, Austria.
State: 2016-04-17
E-mail: robert.patzner@sbg.ac.at