Leptobrama

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Leptobrama
Beach salmon (Leptobrama muelleri)

Beach salmon ( Leptobrama muelleri )

Systematics
Spinefish (Acanthopterygii)
Perch relatives (Percomorphaceae)
Carangaria
Order : Carangiformes
Family : Leptobramidae
Genre : Leptobrama
Scientific name of the  family
Leptobramidae
Ogilby , 1913
Scientific name of the  genus
Leptobrama
Steindachner , 1878

Leptobrama is a two species of fish found on the coasts of northern Australia from Queensland to Western Australia and in rivers in southern New Guinea .

features

Leptobrama species are silvery and have an elongated, laterally strongly flattened body with a curved back and stomach line. The maximum body height is at the beginning of the anal fin. The scales are small and sticky. The head length is 21.7 to 25.8% of the SL , the snout, in fish the area between the tip of the mouth and the front edge of the eyes, has a length of 16.9 to 24.5% of the head length. The mouth extends far behind the large eyes, which have a fat eyelid . A pseudo-branch exists. Both jaws are set with sharp, small, conically shaped teeth. The teeth of the innermost row of teeth are the largest, those in the lower jaw slightly larger than the teeth in the upper jaw. There is a small, toothless area at the top of both jaws. Areas on the palate ( palatine and vomer ), tongue and on some elements of the gill arches are also covered with conical teeth. The front nostrils are slightly smaller than the back. The gill cover is sawn, the gill cover has no spines. The dorsal fin is short, starts behind the center of the body and is supported by four closely spaced spines and 16 to 18 soft rays. The anal fin is long and has three fin spines and 26 to 30 soft rays. The lateral line organ extends in an arc above the pectoral fins. It has long and narrow pores. 75 to 77 scales are counted along the lateral line organ. Below the sideline, the leptobrama species have 13 to 18 rows of scales. Leptobrama species have 6 to 18 mostly short, rod-shaped or spatula-shaped gill rakes . The tips of the pectoral fins extend to the tips of the attached pelvic fins or slightly beyond.

Systematics

The genus Leptobrama was introduced in 1887 with the first description of Leptobrama muelleri by the Austrian zoologist Franz Steindachner . Two other fish species described under the generic name Neopempheris were later synonymous with Leptobrama muelleri . Over more than 100 years the genus remained monotypic until two ichthyologists three fish at the fish market of Ambon aufflielen that Leptobrama muelleri although similar but saw exhibited also significant differences. Together with a colleague, they then revalidated the fish species previously described as Neopempheris pectoralis as Leptobrama pectoralis . Leptobrama is the only genus in the Leptobramidae family. In the past the genus was also assigned to the Pempheridae . Within the group of perch relatives (Percomorphaceae), the Leptobramidae belong to the Carangaria , which also includes the jackfish (Carangidae), the swordfish-like (Istiophoriformes) and the flatfish (Pleuronectiformes).

species

supporting documents

  1. ↑ a b Seishi Kimura, Teguh Peristiwady & Ronald Fricke. (2016): Taxonomic review of the genus Leptobrama Steindachner 1878 (Perciformes: Leptobramidae), with the resurrection of Leptobrama pectoralis (Ramsay and Ogilby 1887). Ichthyological Research, February 9, 2016.
  2. ^ Joseph S. Nelson : Fishes of the World. Wiley, New York 2006, ISBN 0-471-25031-7 .
  3. ↑ Yoshiaki Tominaga. (1965). The internal morphology and systematic position of Leptobrama mulleri , formerly included in the family Pempheridae . Japanese Journal if Ichthyology, Vol XII, nos. 3/6. February 165.
  4. ↑ Ricardo Betancur-R, Edward O. Wiley, Gloria Arratia, Arturo Acero, Nicolas Bailly, Masaki Miya, Guillaume Lecointre and Guillermo Ortí: Phylogenetic classification of bony fishes . BMC Evolutionary Biology, BMC series - July 2017, DOI: 10.1186 / s12862-017-0958-3

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