Branchiobdellida from crayfish host (Cambaridae) (scale 1 mm).
Part of: Worsham MLD, Gibson R, Huffman DG (2016) The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas. ZooKeys 618: 1-14. https://doi.org/10.3897/zookeys.618.8560