Pastinachus gracilicaudus
| Pastinachus gracilicaudus | ||||||||||||
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| Scientific name | ||||||||||||
| Pastinachus gracilicaudus | ||||||||||||
| Last & Manjaji-Matsumoto , 2010 |
Pastinachus gracilicaudus is a species of stingray . It lives in the Malay Archipelago mainly off the northern coasts of Borneo , but also further west off the east coasts of Java and Sumatra .
features
Pastinachus gracilicaudus has a diamond-shaped pectoral fin disc with a rounded snout. The disc can reach a diameter of 75 cm and is slightly longer than it is wide. The whip-like tail is about twice as long as the disc diameter. The back is gray-brown, often with a tinge of red, the tail is slightly darker. The ventral side is white with a narrow dark border. The species can weigh up to 12 kg.
Systematics
Pastinachus gracilicaudus was first in 2010 as part of a research project of the Australian CSIRO described . Together with two other within the project types described advanced until then with Sephen pastinachus as monotypic viewed genus pastinachus . Based on phylogenetic studies, a species described by Macleay in 1883 as Pastinachus atrus was also assigned to the genus. The latter is also the genetically closest relative of Pastinachus gracilicaudus .
literature
- PP Last, BM Manjaji-Matsumoto: Description of a new stingray, Pastinachus gracilicaudus sp. nov. (Elasmobranchii, Myliobatiformes), based on material from the Indo-Malay Archipelago. In: PP Last, WT White, JJ Pogonoski (Ed.): Descriptions of new sharks and rays from Borneo. CSIRO Marine and Atmospheric Research Paper no. 32; Pp. 115–128, 2010 ( full text , 7.24 MB)
Web links
- Pastinachus gracilicaudus on Fishbase.org (English)