Acta Parasitologica, Vol. 52, No. 3, 2007, 273–277. DOI: 10.2478/s11686-007-0035-y Paola E. Braicovich* and Ana J. Alarcos –
Redescription of Brasilochondria riograndensis (Copepoda, Chondracanthidae) parasitic on flounder,
Paralichthys orbignyanus (Actinopterygii, Pleuronectiformes) from South American Atlantic waters
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. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
*Corresponding author: braicovi@mdp.edu.ar
ABSTRACT
Brasilochondria riograndensis Thatcher et Pereira, 2004 (Copepoda, Chondracanthidae) is redescribed based on newly collected
material from the branchial cavity of flounder, Paralichthys orbignyanus (Valenciennes, 1842), from the coasts of Buenos
Aires Province, Argentina. A number of details were overlooked and some appendages were misidentified in original description
and are included herein. These are: the distribution and the number of setae and spines in the antennule, the armature and
segmentation of mandible, maxillule, maxilla, and maxilliped, pedigerous segments and genitoabdomen, in both, females and
males. Moreover, the geographical distribution of this parasite species is broadened.
KEY WORDS:
Brasilochondria riograndensis, Copepoda, redescription, Paralichthys orbignyanus, Pleuronectiformes