New Host Record for the Marine Leech, Pontobdella macrothela (Hirudinida: Piscicolidae) from Sicklefin Lemon Sharks, Negaprion acutidens (Chondrichthyes: Carcharinidae) in St. Joseph Atoll, Republic of Seychelles, West Indian Ocean

Two specimens of the marine leech Pontobdella macrothela were found parasitizing the carcharhinid shark, Negaprion acutidens, at St. Joseph Atoll, Amirantes, Republic of Seychelles. This report presents the first record of this piscicolid leech from N. acutidens and is one of the few records of P. macrothela in the West Indian Ocean.