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F. longirostris has a compressed yellow body with a black triangular region on its head, and as the name implies, a long, silvery snout. Usually 10 or 11 dorsal spines, a black spot on the anal fin, and rows of small black spots on the breast are found. The fish grows to about 22 cm (8.7 in) in length.
The dorsal fin contains 10 spines and 13 soft rays while the anal fin has 3 spines and 7 soft rays. This fish reaches a maximum total length of 13 centimetres (5.1 in). [7] There is a tuft of cirri at the tip of each dorsal fin spine. [8] The overall colour of the body is whitish overlain with a grid of red horizaontal and vertical lines. [9]
It has a bright yellow stripe on a mostly translucent first dorsal fin, and a block spot at the center of the base of the caudal fin. The rays of the second dorsal fin and the caudal fin are black and yellow striped like the color pattern along the lateral line. This fish can be characterized by a long, pointed snout that can be darker colored ...
Longnose gar have a typical lifespan of 15–20 years with a maximum reported age of 39. This long lifespan allows the female to sexually mature around 6 years old. Males mature sexually as early as 2 years of age. Longnose gar are sexually dimorphic; the females are larger than the males in body length, weight, and fin length.
In both fins, the anterior rays are somewhat longer than the posterior rays when depressed. The dorsal fin has 8 (7-8) rays and its origin is slightly anterior to the pelvic fin, which has 8 (7-8) rays. The pectoral fins have 14-15 (13-17) rays and the anal fins have 7 (6-8) rays. The breast is unscaled and the belly is scaled to partially scaled.
[11] [12] Bigmouth buffalo may also accrue unique black or orange pigmentation markings with age, [3] [12] and in some rare individuals, white-edged fins. [6] Like other catostomids it has a long dorsal fin, but unlike all other extant species it has a terminal (forward-facing) mouth reflecting its unique, pelagic feeding ecology.
The highfin carpsucker (Carpiodes velifer) is a freshwater fish found in the southeastern and midwestern United States. Its usual habitat is medium to large-size rivers where it is mostly found 1 to 3 metres (3 to 10 ft) beneath the surface. It is a silvery fish with a prominent dorsal fin, which grows to an average length of 26.5 centimetres ...
The shape, size, position and colour of the dorsal fin varies with the type of billfish, and can be a simple way to identify a billfish species. For example, the white marlin has a dorsal fin with a curved front edge and is covered with black spots. [4] The huge dorsal fin, or sail, of the sailfish is kept retracted most of the time. Sailfish ...