Mesoclemmys nasutus (=Phrynops nasutus, Batrachemys nasutus) 圭亞那側頸龜 x 1 (圖片聯結自reptilelovers.com)
所謂的圭亞納側頸龜因為有個超大的頭因此在寵物市場上一直深受囑目, 雖然不是什麼天價級的水龜, 但在側頸龜中大概還算是中高價位的龜種. Wermuth & Mertens (1977)首先把所謂的Phrynops (蛙龜屬)拆解為三個亞屬, 也就是Phrynops, Batrachemys與Mesoclemmys. Cabrera (1998)以及Georges et al. (1998)又將這三個亞屬提升為屬級地位. McCord et al. (2001)又把重新被提升為屬的Phrynops細分為四個屬, 也就是Bufocephala, Phrynops, Ranacephala與Rhinemys. 然Joyce et al. (2004)並不接受McCord et al. (2001)的分類處理. Bour & Zaher (2005)則建議將Bufocephala與Ranacephala將Mesoclemmys合併, 但承認Rhinemys屬的存在.
相關文章如下:
- BOUR, R., AND ZAHER, H. 2005. A new species of Mesoclemmys, from the open formations of northeastern Brazil (Chelonii, Chelidae). Papeis Avulsos de Zoologica 45:295–311.
- CABRERA, M.R. 1998. Las Tortugas Continentales de Sudamerica Austral. Córdoba: BR Copias, pp. 108.
- GEORGES, A., BIRRELL, J., SAINT, K., MCCORD, W.P., AND DONNELLAN, S. 1998. A phylogeny for side-necked turtles (Chelonia: Pleurodira) based on mitochondrial and nuclear gene sequence variation. Biological Journal of the Linnean Society 67:213-246.
- JOYCE, W.G., PARHAM, J.F., AND GAUTHIER, J.A. 2004. Developing a protocol for the conversion of rank-based taxon names to phylogenetically defined clade names, as exemplified by turtles. Journal of Paleontology 78:989-1013.
- McCORD, W.P., JOSEPH-OUNI, M., AND LAMAR, W.W. 2001. A taxonomic reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and species of Batrachemys. Revista de Biología Tropical 49:715-764.
- WERMUTH, H. AND MERTENS, R. 1977. Liste der rezenten Amphibien und Reptilien. Testudines, Crocodylia, Rhyncocephalia. Das Tierrech. Berlin: Walter de Gruyter, 100 pp.
