2023-08-21 ミュンヘン大学(LMU)
◆新種の特徴には、他の種とは異なる舌の色や体のサイズが含まれます。この発見は、リーフテールヤモリの多様性と進化についての理解を深め、今後の研究の出発点となる可能性があります。
<関連情報>
- https://www.lmu.de/en/newsroom/news-overview/news/master-of-disguise-new-species-of-leaf-tailed-gecko-discovered-in-madagascar.html
- https://www.researchgate.net/publication/373118974_A_new_large-sized_species_of_leaf-tailed_gecko_Uroplatus_from_northern_Madagascar
マダガスカル北部産の大型新種リーフテールヤモリ(Uroplatus) A new large-sized species of leaf-tailed gecko (Uroplatus) from northern Madagascar
Frank Glaw,Jörn Köhler,Fanomezana Mihaja Ratsoavina,Achille Philippe Raselimanana
Salamandra Accepted: 7 July 2023
Abstract
We describe a large new species of leaf-tailed gecko endemic to northern Madagascar. Uroplatus garamaso sp. n. is the sister species of U. henkeli but differs by a genetic divergence > 8% in the mitochondrial 16S rRNA gene, by the absence of haplotype sharing in four nuclear-encoded genes analyzed, a smaller body size, slightly narrower tail, a more pronounced yellowish/reddish iris colour in most individuals, and lack of black pigmentation on the tip of the tongue. The new species also appears to consistently differ from U. henkeli in genital morphology, with the apex of the hemipenis ending in two terminal elements consisting of 4–5 rotulae and longitudinal rows of calyces (versus an apex with irregularly distributed calyces and ending in two symmetrical structures consisting of two broader serrated fleshy elements in U. henkeli). We genetically confirm the occurrence of U. henkeli over a rather wide area, ranging from Tsingy de Bemaraha in the West to Nosy Be in the Sambirano region of northern Madagascar. Both, U. henkeli and the new species contain several deep mitochondrial lineages that are considered as conspecific due to extensive haplotype sharing and lack of obvious morphological differences among them.
