Rasboroides
| Rasboroides | ||||||||||||
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Mother-of-pearl harlequin ( rasboroides vaterifloris ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Rasboroides | ||||||||||||
| Brittan , 1954 |
Rasboroides is a genus of the danioninae . The freshwater fish live in shaded rainforest streams and rivers between the Kalu and Walawe in the southwest of Sri Lanka .
features
Rasboroides species reach body lengths of 2.5 to 4 cm and have a moderately high back, laterally flattened body, which can reach a height of 26.9 to 33% of the standard length. From the genus Rasbora , to which Rasboroides was initially counted as a subgenus, the fish differ in their incomplete sideline , the higher-backed body, an eye diameter that is larger than the interpupillary distance, and an irregular arrangement of scales. From its sister genus Horadandia that occurs in the waters of coastal plains in the west Sri Lanka, as well as in Southern India is different rasboroides by a Tuberkelreihe at the front edge of the pectoral fins in the males (missing at Horadandia ) and by three rows of pharyngeal teeth (two in Horadandia ).
- Scale formula : QR ½6½ - ½8½, SL 20-28.
species
There are two valid types:
- Rasboroides pallidus Deraniyagala, 1958
- Mother-of-pearl harlequin ( Rasboroides vaterifloris (Deraniyagala, 1930) )
supporting documents
- ↑ Sudesh Batuwita, Madura de Silva & Udeni Edirisinghe (2013): A review of the danionine genera Rasboroides and Horadandia (Pisces: Cyprinidae), with description of a new species from Sri Lanka . Ichthyol. Explor. Freshwaters, Vol. 24, No. 2, pp. 121-140, November 2013 © 2013 by Verlag Dr. Friedrich Pfeil, Munich, Germany - ISSN 0936-9902
- ↑ Hiranya Sudasinghe, Jayampathi Herath, Rohan Pethiyagoda and Madhava Meegaskumbura. 2018. Undocumented Translocations Spawn Taxonomic Inflation in Sri Lankan Fire Rasboras (Actinopterygii, Cyprinidae). PeerJ. 6: e6084. DOI: 10.7717 / peerj.6084