Proleptus acutus (Nematoda: Physalopteridae), a parasite from an Argentinian skate, Sympterygia bonapartei (Pisces: Rajidae).
Examination of the stomach and spiral valve contents of 41 Sympterygia bonapartei Müller and Henle, 1841 (Rajiformes: Rajidae) from the Bahía Blanca estuary (38 degrees 42'S, 62 degrees 28'W), revealed the presence of the nematode Proleptus acutus Dujardin, 1845. The prevalence was 34.1% and the mean intensity was 5.75. Sympterygia bonapartei is a new host and is endemic to southern Brazil, Uruguay, and Argentina. The occurrence of P. acutus constitutes the first finding in Argentinian waters.
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Departamento de Biología, Universidad Nacional del Sur, Bahía Blanca, Argentina.
D000818:Animals; D001118:Argentina; D005260:Female; D005393:Fish Diseases / Q000469:parasitology*; D008297:Male; D009348:Nematoda / Q000033:anatomy & histology*; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D012860:Skates, Fish / Q000469:parasitology*