title: A new species of Dichelyne (Nematoda: Cucullanidae) parasitizing Pogonias cromis (Pisces: Sciaenidae) from Mar Chiquita coastal lagoon, Argentina.
abstract: A new nematode species Dichelyne (Cucullanellus) mariajuliae n. sp., is described based on specimens collected from the black drum, Pogonias cromis (Linnaeus, 1766), from Mar Chiquita coastal lagoon, Buenos Aires Province, Argentina (37 degrees 32'S, 57 degrees 19'W) (prevalence 75%, mean intensity 3.75). Among Dichelyne (Cucullanellus), the new species is unique in having the papillae 2 situated at the level of ventral sucker in males and bearing subcuticular ornamentation in the female tail.
authors.affiliation: Laboratorio de Parasitología, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata. Funes 3350, 7600 Mar del Plata, Argentina. jalarcos@mdp.edu.ar
authors.forename: Ana J
authors.initials: AJ
authors.lastname: Alarcos
authors.forename: Juan T
authors.initials: JT
authors.lastname: Timi
authors.forename: Jorge A
authors.initials: JA
authors.lastname: Etchegoin
authors.forename: Norma H
authors.initials: NH
authors.lastname: Sardella
mesh_terms: D000818:Animals; D001118:Argentina; D005260:Female; D005393:Fish Diseases / Q000469:parasitology*; D008297:Male; D008855:Microscopy, Electron, Scanning / Q000662:veterinary; D009348:Nematoda / Q000033:anatomy & histology / Q000145:classification* / Q000648:ultrastructure; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D010473:Perciformes / Q000469:parasitology*; D012623:Seawater