Euzet Louis, de Buron Isaure
Station Méditerranéenne de l'Environnement Littoral, 2 rue des Chantiers, Université Montpellier 2, Sète, 34200, France.
J Parasitol. 2010 Oct;96(5):1010-3. doi: 10.1645/GE-2521.1. Epub 2010 May 28.
The study of 4 dasyatid stingrays- Dasyatis centroura (Mitchill, 1815), D. americana Hildebrand and Schroeder, 1928, D. say (Lesueur, 1817), and D. sabina (Lesueur, 1824)-from the northwestern Atlantic and the Gulf of Mexico showed the presence of monocotylid monogeneans Thaumatocotyle Scott, 1904 in their nasal fossae. Specimens collected from D. centroura from the northern Atlantic were identified as T. dasybatis (MacCallum, 1916). This confirmed the incorrect type host attribution of D. pastinaca (Linnaeus, 1758), which does not occur in the geographic area where T. dasybatis was described. Monogeneans collected from D. americana and D. say in the western Atlantic and the Gulf of Mexico were identified as T. longicirrus Hargis, 1955 and T. retorta Hargis, 1955, respectively, which corresponds to the opposite hosts attributed for each parasite species compared with their original description in the Gulf of Mexico. The species T. roumillati de Buron and Euzet, 2005 described from D. sabina in the northwestern Atlantic is reported for the first time in D. sabina from the Gulf of Mexico. Results clarify confusion in the literature regarding the hosts and habitats of Thaumatocotyle from dasyatids of the western Atlantic and Gulf of Mexico and support the oioxenous specificity of these monogeneans as well as their specificity for the nasal fossae of their hosts.
对来自大西洋西北部和墨西哥湾的4种黄貂鱼——即美洲黄貂鱼（Dasyatis centroura，米契尔，1815年）、美洲达斯黄貂鱼（D. americana，希尔德布兰德和施罗德，1928年）、萨伊黄貂鱼（D. say，勒叙厄尔，1817年）和萨宾黄貂鱼（D. sabina，勒叙厄尔，1824年）——的研究表明，在它们的鼻窝中存在单殖吸虫纲的奇异单殖吸虫（Thaumatocotyle Scott，1904年）。从北大西洋的美洲黄貂鱼采集的标本被鉴定为达斯黄貂鱼单殖吸虫（T. dasybatis，麦卡勒姆，1916年）。这证实了欧洲黄貂鱼（D. pastinaca，林奈，1758年）的错误模式宿主归属，该物种并不出现在描述达斯黄貂鱼单殖吸虫的地理区域。从西大西洋和墨西哥湾的美洲达斯黄貂鱼和萨伊黄貂鱼采集的单殖吸虫分别被鉴定为长环奇异单殖吸虫（T. longicirrus，哈吉斯，1955年）和扭曲奇异单殖吸虫（T. retorta，哈吉斯，1955年），与它们在墨西哥湾的原始描述相比，这与为每种寄生虫物种归因的相反宿主相对应。2005年从大西洋西北部的萨宾黄貂鱼描述的鲁米拉蒂奇异单殖吸虫（T. roumillati，德布龙和厄泽特）首次在墨西哥湾的萨宾黄貂鱼中被报道。结果澄清了文献中关于西大西洋和墨西哥湾黄貂鱼的奇异单殖吸虫的宿主和栖息地的混淆，并支持了这些单殖吸虫的宿主专一性以及它们对宿主鼻窝的专一性。
