Armbruster Jonathan W
Auburn University Museum of Natural History; 101 Life Sciences Building; Auburn University; AL 36849.
Zootaxa. 2024 Nov 4;5536(2):325-335. doi: 10.11646/zootaxa.5536.2.8.
Thoburnia atripinnis is more closely related to Hypentelium (hogsuckers) than it is to other Thoburnia, and its presence in the Barren River of Kentucky is disjunct from that of true Thoburnia. Its unique morphology is unlike that of the easily recognized hogsuckers, making placement of the species within Hypentelium untenable; thus, a new genus is described. The new genus can be separated from all other catostomids by the presence of thin, black, prominent stripes on the body, a large black mark on the anterodist al portion of the dorsal fin, presence of pads ventrally on the leading portion of the pectoral fin, lateral laminae of the dermethmoid angled anteriorly, and the base of the lateral ethmoid narrow.
黑鳍托布尼亚鱼与吸口鱼属（hogsuckers）的关系比与其他托布尼亚鱼更为密切，它在肯塔基州巴伦河的分布与真正的托布尼亚鱼相分离。其独特的形态与易于识别的吸口鱼属不同，这使得该物种归入吸口鱼属并不合理；因此，描述了一个新属。这个新属可以通过以下特征与所有其他亚口鱼科鱼类区分开来：身体上有细的黑色显著条纹，背鳍前远端有一个大的黑色斑，胸鳍前缘腹面有垫，筛骨侧板向前倾斜，以及外侧筛骨基部狭窄。
