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home page > sezioni > Tribe Ectodini >
Tribe Ectodini Synopsis of Aulonocranus Regan, 1920 |
|
A cura di Thomas Andersen, 2007.
Ultimo aggiornamento in data01-Feb-2007 |
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Type species: Aulonocranus dewindti (Boulenger, 1899)
Aulonocranus dewindti male at Toby Veal’s Place, Zambia. Photo by Ad Konings. Determiner Ad Konings. |
Distinctive characters:
- Body moderately lengthened and compressed, approximately 3 times as long as high, with symmetrical dorsal and ventral profiles.
- Dorsal XI-XIII, 12-14. Anal III, 8-10. Ventral fins with a long first spine, more or less filamentous, reaching to the anal fin in adult males. Caudal cresentric.
- 33-36 scales along the longitudinal line.
- Sensory pores on the head region.
- Two lateral lines.
- Lower pharyngeal bone triangular, with very fine subconic teeth.
- Mouth final with the lower jaw a bit prominent. Teeth conical and very small, arranged in 2-3 rows on each jaw.
- The color of the body is silvery, with horizontal yellow lines in males.
- Total length 12 cm.
Species currently included:
Aulonocranus dewindti (Boulenger, 1899)
Type locality:
Moliro, D.R. Congo (former Zaire).
Taxonomic history:
- Aulonocranus dewindti (Boulenger, 1899) - by Regan 1920
- Paratilapia dewindti Boulenger, 1899
Synonyms:
- Paratilapia lukugae Boulenger, 1919
Link to Aulonocranus dewindti in the CRC Catalogue.
Remarks on taxonomic status:
The mono-typic genus Aulonocranus with the type-species A. dewindti stands out from all other species in the tribe Ectodini, by the presence of sensory pores in the head region. The molecular analyses of Koblmüller et al. (2004) showed that Aulonocranus form a subclade within the Ophthalmotilapia-clade, together with the genera Cunningtonia, Ectodus and Lestradea, and that Aulonocranus dewindti may form a species-pair together with Cunningtonia longiventralis.
Riferimenti:
- Boulenger, George Albert. 1899. "Second contribution to the ichthyology of Lake Tanganyika - On the fishes obtained by the Congo Free State Expedition under Lieut. Lemaire in 1898". Transactions of the Zoological Society of London. 28 (49); 15 (4/1); p 88 (crc00043).
- Koblmüller, Stephan & W. Salzburger & C. Sturmbauer. 2004. "Evolutionary relationships in the sand-dwelling cichlid lineage of Lake Tanganyika suggest multiple colonization of rocky habitats and convergent origin of bipartental mouthbrooding". Journal of Molecular Evolution. v. 58(n. 1), pp. 79-96 (crc01117) (riassunto).
- Poll, Max. 1986. "Classification des Cichlidae du lac Tanganika. Tribus, genres et especes". Academie Royale de Belgique, Mémoires de la Classe des Sciences. Collection in 8 - 2ème série; 45 (2); p 1-163 (crc00033).
- Regan, Charles Tate. 1920. "The Classification of the Fishes of the Family Cichlidae.-I. The Tanganyika Genera". Annals and Magazine of Natural History. (Ser. 9) v. 5; n. 25; pp. 33-53 (crc00028).
© Copyright 2007 Thomas Andersen, all rights reserved
Citazione:
Andersen, Thomas. (Febbraio 01, 2007). "Synopsis of Aulonocranus Regan, 1920". The Cichlid Room Companion. URL consultato in data Maggio 18, 2013, da: http://www.cichlidae.com/section.php?id=188&lang=it.
