Amblygobius

Amblygobius
Brown striped goby ( Amblygobius phalaena )
Systematics
Acanthomorphata Spinefish (Acanthopterygii) Perch relatives (Percomorphaceae) Order : Gobies (Gobiiformes) Family : Gobies (Gobiidae) Genre : Amblygobius
Scientific name
Amblygobius
Bleeker , 1874

Amblygobius is a genus of the gobies (Gobiidae). The fish live near the coast in the tropical Indian Ocean and in the western Pacific in shallow water on sandy bottoms between coral reefs .

features

Amblygobius species are small or medium-sized gobies that reach lengths of up to 18 cm ( Amblygobius albimaculatus ). The dorsal and anal fin have not grown together with the caudal fin. The first dorsal fin is supported by six thin, flexible hard rays, the first ray of the second is unsegmented. The pelvic fins have grown together to form a suction disk. The body is covered with round or ridge scales, cheeks and gill covers are largely without scales. Both jaws have two to three rows of teeth. In the lower jaw there is a single, curved canine on both sides. On the head, the sensory pores are mainly arranged in oblique rows.

Amblygobius is closely related to the genera Valenciennea and Signigobius . The species of all three genera are territorial , form monogamous pairs and live as burrowing fish, sifting through the ground for food, picking up sand, chewing it through and filtering out the edible components with the gill pots, while the sand trickles out of the gill slits.

species

Within the genus Amblygobius , two groups of species can be distinguished according to their external appearance and the pattern of the scaling. The species of the Amblygobius sphynx species group are relatively large, strong and, above all, covered with comb scales. Round scales are only present on a median strip in front of the dorsal fin, the sides of the neck and in the upper area of ​​the gill cover. The four species of the Amblygobius nocturnus species group are smaller (usually less than 6 to 7 cm), slimmer, have only round scales and are scaly in the upper area of ​​the gill cover and in front of the dorsal fin.

Amblygobius sphynx , the type species of the genus

• Amblygobius sphynx species group
  • Amblygobius albimaculatus (Rüppell, 1830)
  • Amblygobius buanensis Herre, 1927
  • Amblygobius bynoensis Richardson, 1844
  • Amblygobius decussatus Bleeker, 1855
  • Amblygobius linki Herre, 1927
  • Amblygobius magnusi Klausewitz, 1968
  • Amblygobius perpusillus
  • Amblygobius phalaena Valenciennes in Cuvier & Valenciennes, 1837
  • Amblygobius semicinctus Bennett, 1833
  • Amblygobius sphynx Valenciennes in Cuvier & Valenciennes, 1837
  • Amblygobius stethophthalmus Bleeker, 1851
  • Amblygobius tekomaji Smith, 1959
• Amblygobius nocturnus species group
  • Amblygobius calvatus Allen & Erdmann, 2016
  • Amblygobius cheraphilus Allen & Erdmann, 2016
  • Amblygobius esakiae Herre, 1939
  • Amblygobius nocturnus Herre, 1945

literature

• Allen, GR & Erdmann, MV (2016): Descriptions of two new gobies (Gobiidae: Amblygobius ) from the tropical western Pacific Ocean. Journal of the Ocean Science Foundation, 24: 10-23. doi: 10.5281 / zenodo.167891

Web links

Commons : Amblygobius  - collection of images, videos and audio files

• Amblygobius on Fishbase.org (English)