First record of Multicalyx cristata (Aspidocotylea) in Sphyrna lewini (Elasmobranchii) in the southern Gulf of Mexico
Keywords: Sharks; Parasites; Trematoda; Aspidogastrea; Gallbladder; Tiburones; Parásitos; Trematoda; Aspidogastrea; VesÃcula biliar;