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Diplodus

From Wikipedia, the free encyclopedia

Not to be confused with Diplodocus.

Diplodus
Diplodus annularis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Spariformes
Family: Sparidae
Genus: Diplodus
Rafinesque, 1810
Type species
Sparus annularis
Linnaeus, 1758
Synonyms[1]

Diplodus is a genus of marine ray-finned fish belonging the family Sparidae, which includes the seabreams and porgies. These fishes are found in the Atlantic Ocean, the Mediterranean Sea and the western Indian Ocean.

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Transcription

Taxonomy

Diplodus was first formally proposed as a monospecific genus in 1810 by the French naturalist and polymath Constantine Samuel Rafinesque with Sparus annularis as its type species by monotypy.[1] S. annularis had been described in 1758 from the Mediterranean Sea by Carl Linnaeus in the 10th edition of his Systema Naturae.[2] This genus is placed in the family Sparidae within the order Spariformes by the 5th edition of Fishes of the World.[3] Some authorities classify this genus in the subfamily Sparinae,[4] but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae.[3]

Within the genus three clades have been identified, the first consists of D. annularis and D. bellottii, the second is made up of D. vulgaris and D. prayensis while the third splits into further clades, The first of these "sub-clades" comprises D. puntazzo and Oblada melanura, a second made up of D. fasciatus and D. cervinus sensu lato (including D. hottentotus, D. omanensis and the Mascarene endemic D. striatus) while the third consists of D, vulgaris (including D. prayensis) and the D. sargus species complex. This species complex is made up of the Western Atlantic species, D. argenteus, D. bermudensis D. caudimacula and D. holbrooki. the Red Sea endemic D. noct, the Indian Ocean D. kotschyi the eastern Mediterranean D. levantinus and the eastern Atlantic D. ascensionis, D. cadenati D. capensis, D. helenae, D. lineatus and D. sargus. It is also thought that the D. sargus species complex originated in the Cape Verde area and radiated and speciated from there.[5]

Etymology

Diplodus means "double toothed", an allusion Rafinesque did not explain but it may be a reference to the two types of teeth, incisor-like and molar-like, or to the double incisor-like teeth.[6]

Species

Diplodus contains the following extant valid species:[7]

Characteristics

Diplodus seabreams have deep bodies with an elongated ovate shape. There are between 8 and 12 incisor-like teeth in the front of the upper jaw, the rest of the teeth are molar like. The lateral line is made up of 60, or more, scales. There is a scaled sheath at the base of the dorsal and anal fins. The flange on the preoperculum has no scales. The bodies may be marked with dark vertical bars or is plain silvery with a black blotch or spot on the caudal peduncle.[9] The largest species in the genus with maximum published total lengths of 60 cm (24 in) are D. hottentotus and D. puntazzowhile the smallest is D. ascensionis which has a maximum published total length of 22 cm (8.7 in).[7]

Distribution

Diplodus seabreams are found in the Eastern and Western Atlantic Oceans, the Mediterranean Sea, the Black Sea and the Western Indian Ocean.[7]

References

  1. ^ a b Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Sparidae". Catalog of Fishes. California Academy of Sciences. Retrieved 18 January 2024.
  2. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Diplodus". Catalog of Fishes. California Academy of Sciences. Retrieved 18 January 2024.
  3. ^ a b Nelson, J.S.; Grande, T.C.; Wilson, M.V.H. (2016). Fishes of the World (5th ed.). Hoboken, NJ: John Wiley & Sons. pp. 502–506. doi:10.1002/9781119174844. ISBN 978-1-118-34233-6. LCCN 2015037522. OCLC 951899884. OL 25909650M.
  4. ^ Parenti, P. (2019). "An annotated checklist of the fishes of the family Sparidae". FishTaxa. 4 (2): 47–98.
  5. ^ M. Summerer; R. Hanel; C. Sturmbauer (2005). "Mitochondrial phylogeny and biogeographic affinities of sea breams of the genus Diplodus (Sparidae)". Journal of Fish Biology. 59 (6): 1638–1652. doi:10.1111/j.1095-8649.2001.tb00227.x.
  6. ^ "Order SPARIFORMES: Families LETHRINIDAE, NEMIPTERIDAE and SPARIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. 22 December 2023. Retrieved 18 January 2024.
  7. ^ a b c Froese, Rainer and Pauly, Daniel, eds. (2023). Species of Diplodus in FishBase. October 2023 version.
  8. ^ a b c d e f g h Fricke, R., Golani, D. & Appelbaum-Golani, B. (2016): Diplodus levantinus (Teleostei: Sparidae), a new species of sea bream from the southeastern Mediterranean Sea of Israel, with a checklist and a key to the species of the Diplodus sargus species group. Scientia Marina, 80 (3): 305-320.
  9. ^ Yukio Iwatsuki and Phillip C Heemstra (2022). "Family Sparidae". In Phillip C Heemstra; Elaine Heemstra; David A Ebert; Wouter Holleman; and John E Randall (eds.). Coastal Fishes of the Western Indian Ocean (PDF). Vol. 3. South African Institute for Aquatic Biodiversity. pp. 284–315. ISBN 978-1-990951-32-9.
This page was last edited on 2 February 2024, at 11:47
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