Roberts Jackson R, Halanych Kenneth M, Arias Cova R, Folt Brian, Goessling Jeffrey M, Bullard Stephen A
Aquatic Parasitology Laboratory, School of Fisheries, Aquaculture, and Aquatic Sciences, College of Agriculture, Auburn University, 203 Swingle Hall, Auburn, AL 36849, USA.
Department of Biological Sciences and Molette Biology Laboratory for Environmental & Climate Change Studies, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL 36830, USA.
Parasitol Int. 2017 Dec;66(6):748-760. doi: 10.1016/j.parint.2017.09.001. Epub 2017 Sep 8.
Hapalorhynchus Stunkard, 1922 is emended based on morphological study of existing museum specimens (type and voucher specimens) and newly-collected specimens infecting musk turtles (Testudines: Kinosternidae: Sternotherus spp.) from rivers in Alabama and Florida (USA). Hapalorhynchus conecuhensis n. sp. is described from an innominate musk turtle, Sternotherus cf. minor, (type host) from Blue Spring (31°5'27.64″N, 86°30'53.21″W; Pensacola Bay Basin, Alabama) and the loggerhead musk turtle, Sternotherus minor (Agassiz, 1857) from the Wacissa River (30°20'24.73″N, 83°59'27.56″W; Apalachee Bay Basin, Florida). It differs from congeners by lacking a body constriction at level of the ventral sucker, paired anterior caeca, and a transverse ovary as well as by having a small ventral sucker, proportionally short posterior caeca, nearly equally-sized anterior and posterior testes, a small cirrus sac, and a uterus extending dorsal to the ovary and the anterior testis. Specimens of Hapalorhynchus reelfooti Byrd, 1939 infected loggerhead musk turtles, stripe-necked musk turtles (Sternotherus peltifer Smith and Glass, 1947), Eastern musk turtles (Sternotherus odoratus [Latreille in Sonnini and Latreille, 1801]), and S. cf. minor. Those of Hapalorhynchus cf. stunkardi infected S. minor and S. odoratus. Sternothorus minor, S. peltifer, and S. cf. minor plus S. minor and S. odoratus are new host records for H. reelfooti and H. cf. stunkardi, respectively. This is the first report of an infected musk turtle from the Coosa and Tallapoosa Rivers (Mobile-Tensaw River Basin), Pensacola Bay Basin, or Apalachee Bay Basin. Sequence analysis of the large subunit rDNA (28S) showed a strongly-supported clade for Hapalorhynchus.
基于对现有博物馆标本（模式标本和凭证标本）的形态学研究以及新采集的感染美国阿拉巴马州和佛罗里达州河流中麝香龟（龟鳖目：动胸龟科：麝香龟属物种）的标本，对1922年的哈氏吸虫属（Hapalorhynchus Stunkard）进行了修订。新种康内库恩哈氏吸虫（Hapalorhynchus conecuhensis n. sp.）是从一只无名麝香龟（近似小麝香龟，Sternotherus cf. minor，模式宿主）中描述的，该龟采自蓝泉（北纬31°5'27.64″，西经86°30'53.21″；阿拉巴马州彭萨科拉湾流域），以及蠵龟麝香龟（Sternotherus minor (Agassiz, 1857)），采自瓦西萨河（北纬30°20'24.73″，西经83°59'27.56″；佛罗里达州阿巴拉契科拉湾流域）。它与同属其他物种的区别在于，腹吸盘水平处无体缢缩、无前侧盲肠对、无横向卵巢，并且具有小的腹吸盘、相对较短的后侧盲肠、前后睾丸大小几乎相等、小的阴茎囊，以及子宫延伸至卵巢和前睾丸的背侧。1939年的里氏哈氏吸虫（Hapalorhynchus reelfooti Byrd）的标本感染了蠵龟麝香龟、条纹颈麝香龟（Sternotherus peltifer Smith和Glass，1947）、东部麝香龟（Sternotherus odoratus [Latreille in Sonnini和Latreille，1801]）以及近似小麝香龟。近似斯氏哈氏吸虫（Hapalorhynchus cf. stunkardi）的标本感染了小麝香龟和东部麝香龟。小麝香龟、条纹颈麝香龟和近似小麝香龟分别以及小麝香龟和东部麝香龟分别是里氏哈氏吸虫和近似斯氏哈氏吸虫的新宿主记录。这是首次报道在库萨河和塔拉波萨河（莫比尔 - 滕索河流域）、彭萨科拉湾流域或阿巴拉契科拉湾流域发现感染的麝香龟。大亚基核糖体DNA（28S）的序列分析显示哈氏吸虫属有一个得到有力支持的分支。
