Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter December 30, 2014

New morphological data and first description of gravid female of Cucullanus bagre Petter, 1974 (Seuratoidea: Cucullanidae) from Bagre bagre (Linnaeus, 1766) (Siluriformes: Ariidae) off Brazil

Felipe B. Pereira, Fabiano M. Vieira and José L. Luque
From the journal Acta Parasitologica


Cucullanus bagre Petter, 1974 (Cucullanidae) is redescribed based on the examination of newly collected material and the revaluation of type specimens, using light and for the first time scanning electron microscopy. Parasite specimens were collected from the intestine of the coco sea catfish Bagre bagre (Linnaeus) (Ariidae) off the South Atlantic coast, State of Rio de Janeiro, Brazil. Detailed morphological analysis revealed the presence of an unpaired papilla just anterior to the cloacal protrusion in male, that was overlooked in the original description. Descriptions of the adult female and eggs are provided for the first time; these gravid specimens have the general morphometry quite similar to that of juveniles. Additionally, detailed description and illustration of sclerotized plates present on the oesophastome is provided. The far posterior location of the excretory pore with thick-walled excretory duct, the conspicuous protrusions present on both anal and cloacal regions and the number and arrangement of caudal papillae in males are considered to be important diagnostic features for C. bagre. All the specimens from type material were together in one vial and not separated in two vials as stated in the original description, making it impossible to determine which is the holotype, allotype or paratypes. This is the first report of C. bagre in Brazil, which expands its geographical distribution to South Atlantic waters.


Aguirre-Macedo M.L., Vidal-Martinez V.M., Gonzalez-Solis D., Caballero P. I. 2007. Helminth communities of four commercially important fish species from Chetumal Bay, Mexico. Journal of Helminthology, 81, 19-31Search in Google Scholar

Berland B. 1970. On the morphology of the head in four species of the Cucullanidae (Nematoda). Sarsia, 43, 15-64Search in Google Scholar

Bharatha-Lakshmi B. 2000. A new parasite of the genus Cucullanus (Nematoda: Cucullanidae) from the fish Airus thalassinus. Boletín Chileno de Parasitologia, 55, 106-108Search in Google Scholar

Bilqees F.M., Fatima H. 1980. Marine fish nematodes of Pakistan. XII. Cucullanus quadrii, new species (Cucullanidae) from Arius serratus of Karachi coast. Pakistan Journal of Zoology, 12, 27-31Search in Google Scholar

Esch G., Bush A., Aho J. 1990. Parasite communities: patterns and process. Chapman and Hall, London, UK, 335 pp Search in Google Scholar

Figueiredo J.L., Menezes N.A. (Eds.). 1978. Manual de peixes marinhos do Sudeste do Brasil. II Teleostei (1). Museu de Zoologia da Universidade de Sao Paulo, Sao Paulo, BR, 110 pp.Search in Google Scholar

Froese R., Pauly D. (Eds.). 2014. FishBase. World Wide Web electronic publication,, version February/2014Search in Google Scholar

Janovy J. Jr., Clopton R. E., Percival T. J. 1992. The roles of ecological and evolutionary influences in providing structure of parasite species assemblages. Journal of Parasitology, 74, 630-640Search in Google Scholar

Lopez-Caballero J., Osorio-Sarabia D., Garcia-Prieto L. 2009. Cucullanus costaricensis n. sp. (Nematoda: Cucullanidae), a parasite of Bagre pinnimaculatus (Siluriformes: Ariidae) from Rio Tempisque, Costa Rica. Journal of Parasitology, 95, 413-423Search in Google Scholar

Mejia-Madrid H.H., Aguirre-Macedo M.L. 2011. Redescription and genetic characterization of Cucullanus dodsworthi (Nematoda: Cucullanidae) from the checkered puffer Sphoeroides testudineus (Pisces: Tetraodontiformes). Journal of Parasitology, 97, 695-706Search in Google Scholar

Mejia-Madrid H.H., Guillen-Hernandez S. 2011. A new cucullanid from the black grouper Mycteroperca bonaci (Osteichthyes: Serranidae) off the coast of Yucatan, Mexico. Journal of Parasitology, 97, 122-127Search in Google Scholar

Moravec F., Justine J.L. 2011. Cucullanid nematodes (Nematoda: Cucullanidae) from deep-sea marine fishes off New Caledonia, including Dichelyne etelidis n. sp. Systematic Parasitology, 78, 95-108Search in Google Scholar

Moravec F., Kohn A., Fernandes B.M.M. 1997. New observations on seuratoid nematodes parasitic in fishes of the Parana River, Brazil. Folia Parasitologica, 44, 209-223Search in Google Scholar

Moravec F., Lorber J., Konečny R. 2008. Cucullanus maldivensis n. sp. (Nematoda: Cucullanidae) and some other adult nematodes from marine fishes off the Maldive Islands. Systematic Parasitology, 70, 61-69Search in Google Scholar

Pereira F.B., Vieira F.M., Luque J.L. 2014. A new species of Cucullanus Muller, 1777 (Nematoda: Cucullanidae) parasitic in the grey triggerfish Balistes capriscus Gemlin (Osteichthyes: Balistidae) off Rio de Janeiro, Brazil. Systematic Parasitology, 87, 283-291Search in Google Scholar

Petter A.J. 1974. Deux nouvelles speces de Cucullanidae parasites de poissons en Guyane. Bulletin du Museum National d’Histoire Naturelle de Paris, 3a serie, n° 255, Zoologie, 177, 1459-1467Search in Google Scholar

Petter A.J., LeBell J. 1992. Two new species in the genus Cucullanus (Nematoda: Cucullanidae) from the Australian region. Memórias do Instituto Oswaldo Cruz, 87, 201-206Search in Google Scholar

Yamaguti S. 1954. Parasitic worms mainly from Celebes Part. 9. Nematodes of fishes. Acta Medicinae Okayama, 9, 122-133Search in Google Scholar

Yooyen T., Moravec F., Wongsawad C. 2011. Two new species of Cucullanus Muller, 1777 (Nematoda: Cucullanidae) from marine fishes off Thailand. Systematic Parasitology, 78, 139-14 Search in Google Scholar

Received: 2014-7-1
Revised: 2014-9-23
Accepted: 2014-10-10
Published Online: 2014-12-30
Published in Print: 2014-3-1

© 2015