Flaming goby

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Flaming goby
male

male

Systematics
Spinefish (Acanthopterygii)
Perch relatives (Percomorphaceae)
Order : Gobies (Gobiiformes)
Family : Oxudercidae
Genre : Rhinogobius
Type : Flaming goby
Scientific name
Rhinogobius zhoui
Li & Zhong , 2009

The flame goby ( Rhinogobius zhoui ) is a small species of goby from the family Oxudercidae , which so far is only known from the rivers and streams of the Lianhua Mountains in Haifeng County in the Chinese province of Guangdong .

features

The gobies are very small, the males examined when they were first described had a standard length of 2.6 to 3.6 cm, the females were 3.0 to 3.2 cm long. Flame gobies have a typical goby shape with a cylindrical, elongated body, two clearly separated dorsal fins and a beefy head, the length of which is 26.8 to 31.5% of the standard length. The head of the male is slightly larger than that of the female in comparison to the body. The body height at the beginning of the anal fin is 13.6 to 17.4% of the standard length, the body width there is 10.6 to 13.7% of the standard length. The body is slightly higher at the beginning of the pelvic fins, which in gobies lie far in front just behind the head. There the fish have a height of 15.8 to 17.9% of the standard length. The tail stalk makes up 22.3 to 25.2% of the standard length and its height is 9.7 to 12.7% of the standard length. The length of the rounded caudal fin, which is not taken into account when determining the standard length, as it is often damaged when fishing, is 23.5 to 27.1 of the standard length. The length of the snout, which is the distance from the front edge of the eye to the tip of the mouth in a fish, accounts for 24.4 to 29.6% of the length of the head, the diameter of the eyes is 23 to 27.6% of the length of the head. The head is provided with numerous sensory pores arranged in lines .

In addition to the morphometric data mentioned above, the number of soft rays in the fins is also used to diagnose the species.

Flame gobies have a total of 26 vertebrae, 10 trunk vertebrae, and 16 tail vertebrae. On each side of the body there are 29 to 31 scales in a central longitudinal row, in a central line in front of the first dorsal fin there are 10 to 12 scales. Flame gobies are green-gray in color and show six to eight deep orange transverse bands on the sides of the body. The unpaired fins of adult males have wide white margins. This can be used as an easy distinguishing feature to other goby species. In addition, they lack the frequently occurring dark spot in the first dorsal fin and the Branchiostegal membranes are colorless.

literature

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