A new species of Branchellion Savigny, 1822 (Hirudinida: Piscicolidae), a marine leech parasitic on the giant electric ray Narcine entemedor Jordan & Starks (Batoidea: Narcinidae) off Oaxaca, Mexico. Systematic Parasitology, 96(7), 575–584
DOI: 10.1007/s11230-019-09872-w
