Folia Parasitologica, vol. 55 (2008), issue 3

Folia Parasitologica 55[3] 171-179 (2008) | 10.14411/fp.2008.024

New species of Diplectanum (Monogenoidea: Diplectanidae), and proposal of a new genus of the Dactylogyridae from the gills of gerreid fishes (Teleostei) from Mexico and Panama

Edgar F. Mendoza Franco1,2, Dominique G. Roche1,3, Mark E. Torchin1
1 Smithsonian Tropical Research Institute, Apartado Postal 0843-03092 Balboa, Ancon, Panamá, Republic of Panama
2 Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Branišovská 31, 370 05 České Budějovice, Czech Republic
3 Department of Biology, McGill University, 1205 Avenue Doctor Penfield, Montreal, Quebec, H3A 1B1, Canada

While investigating the parasites of several marine fishes from the Western Atlantic, the Southern Gulf of Mexico and Central America (Panama), the following monogenoidean species from the gills of gerreid fishes (Gerreidae) were found: Diplectanum gatunense sp. n. (Diplectanidae) and Octouncuhaptor eugerrei gen. et sp. n. (Dactylogyridae) in Eugerres brasilianus (Cuvier) from Gatun Lake in the Panama Canal Watershed, and Diplectanum mexicanum sp. n. in Diapterus rhombeus (Cuvier) from the coast of Campeche State, Mexico. New diplectanid species are distinguished from other species of the genus by the general morphology of the copulatory complex and by the shape of the anchors and bars on the haptor. Octouncuhaptor gen. n. is proposed for its new species having slightly overlapping gonads (testis posterodorsal to the ovary), a dextrolateral vaginal aperture, a copulatory complex consisting of a coiled male copulatory organ with counterclockwise rings with the base articulated to the accessory piece, 8 pairs of hooks and the absence of anchors and bars on haptor. Our analysis of morphological features of Diplectanum species on gerreids evidences that these parasites more closely resemble each other than the known species from sciaenids suggesting that split between gerreids and sciaenids resulted in parasite speciation.

Keywords: Monogenoidea, Diplectanidae, Dactylogyridae, Diplectanum, Octouncuhaptor, Diplectanum gatunense, Diplectanum mexicanum, Octouncuhaptor eugerrei, Eugerres brasilianus, Diapterus rhombeus, Panama, Mexico

Received: March 4, 2008; Accepted: April 28, 2008; Published: September 1, 2008


References

  1. AGUIRRE-MACEDO M.L., VIDAL-MARTINEZ V., GONZALEZSOLIS D., CABALLERO P.I. 2007: Helminth communities of four commercially important fish species from Chetumal Bay, Mexico. J. Helminthol. 81: 19-31 Go to original source... Go to PubMed...
  2. BOEGER W.A., FEHLAUER K.H., MARQUES E.E. 2006: Neotropical Monogenoidea. 49. Four new species of the Diplectanidae (Dactylogyrinea) from the gills of some pachyurines (Teleostei: Sciaenidae) from the Rio Tocantins and Rio Doce Basins, with the proposal of Anoplectanum n. g. and Spinomatrix n. g. Syst. Parasitol. 64: 57-68 Go to original source... Go to PubMed...
  3. CHEN W.J., RUIZ-CARUS R., ORTI G. 2007: Relationships among four genera of mojarras (Teleostei: Perciformes: Gerreidae) from the western Atlantic and their tentative placement among percomorph fishes. J. Fish Biol. 70 (Suppl. B): 202- 218 Go to original source...
  4. DECKERT G.D., GREENFIELD D.W. 1987: A review of the Western Atlantic species of the genera Diapterus and Eugerres (Pisces: Gerreidae). Copeia 1: 182-194 Go to original source...
  5. DOMINGUES M.V. 2004: Filogenia e taxonomia de Diplectanidae Monticelli, 1903 (Platyhelminthes; Monogenoidea). Ph.D. Thesis, Universidade Federal do Parana, Brazil, 217 pp
  6. DOMINGUES M.V., BOEGER W.A. 2003: Neotropical Monogenoidea. 43. Diplectanum monticellii n. sp. (Diplectanidae) from the gills of Cynoscion leiarchus (Perciformes: Sciaenidae) in Brazil. J. Parasitol. 89: 698-700 Go to original source... Go to PubMed...
  7. FISCHTHAL J.H., ALLISON L.N. 1942: Acolpenteron catostomi n. sp. (Gyrodactyloidea: Calceostomatidae), a monogenetic trematode from the ureters of suckers, with observations on its life history and that of A. ureteroecetes. Trans. Am. Microsc. Soc. 61: 53-56 Go to original source...
  8. FROESE R., PAULY D. (Eds.) 2008: FishBase. World Wide Web electronic publication. www.fishbase.org, version (03/2008)
  9. FUENTES-ZAMBRANO J.L. 1997: Dos especies nuevas de monogeneos (Diplectanidae) parasitos de peces marinos de la Laguna de la Restinga. An. Inst. Biol., UNAM, Ser. Zool. 68: 225-236
  10. HAYWARD C.J. 1996: Revision of the monogenean genus Polylabris (Microcotylidae). Invertebr. Taxon. 10: 995-1039 Go to original source...
  11. KOHN A., COHEN S.C. 1998: South American Monogenea. List of species, hosts and geographical distribution. Int. J. Parasitol. 28: 1517-1554 Go to original source... Go to PubMed...
  12. KOHN A., COHEN S.C., SALGADO-MALDONADO G. 2006: Checklist of Monogenea parasites of freshwater and marine fishes, amphibians and reptiles from Mexico, Central America and Caribbean. Zootaxa 1289: 3-114
  13. KRITSKY D.C., GALLI P. 2007: Dactylogyrids (Monogenoidea) parasitizing the gills of spinefoots (Teleostei: Siganidae): revision of Pseudohaliotrema, with redescriptions of P. sphincteroporus and P. molnari from the great barrier reef Australia. Comp. Parasitol. 74: 9-22 Go to original source...
  14. KRITSKY D.C., THATCHER V.E. 1984: Neotropical Monogenea. 6. Five new species of Diplectanum (Diplectanidae) from freshwater teleosts, Plagioscion spp. (Sciaenidae), in Brazil. Proc. Biol. Soc. Wash. 97: 432-441
  15. KRITSKY D.C., BOEGER W.A., THATCHER V.E. 1985: Neotropical Monogenea. 7. Parasites of the pirarucu Arapaima gigas (Cuvier), with descriptions of two new species and redescription of Dawestrema cycloancistrium Price and Nowlin, 1967 (Dactylogyridae: Ancyrocephalinae). Proc. Biol. Soc. Wash. 98: 321-331
  16. KRITSKY D.C., JIMENEZ-RUIZ F.A., SEY O. 2000: Diplectanids (Monogenoidea: Dactylogyridea) from the gills of marine fishes of the Persian Gulf off Kuwait. Comp. Parasitol. 67: 145-164
  17. KRITSKY D.C., LEIBY P.D., SHELTON M.E. 1972: Studies on helminths of North Dakota. IV. Parasites of the river carpsucker, Carpiodes carpio, with descriptions of three new species (Monogenea). J. Parasitol. 58: 723-731 Go to original source... Go to PubMed...
  18. MIZELLE J.D. 1936: New species of trematodes from the gills of Illinois fishes. Am. Midl. Nat. 17: 785-806 Go to original source...
  19. MIZELLE J.D., BLATZ V. 1941: Studies on monogenetic trematodes. VI. Two new dactylogyrid genera from Florida fishes. Am. Midl. Nat. 26: 105-109 Go to original source...
  20. OLIVER G. 1987: Les Diplectanidae Bychowsky, 1957 (Monogenea, Monopisthocotylea, Dactylogyridea). Systematique. Biologie. Ontogenie. Ecologie. Essai de phylogenese. DSc Thesis, Universite des Sciences et Techniques du Languedoc, Montpellier, 433 pp
  21. OLIVER G. 1993: Les Diplectanidae Bychowsky, 1957 (Monogenea, Monopisthocotylea, Dactylogyridea) marqueurs biologiques, temoins de la biogeographie et de l'evolution de leurs hotes. Bull. Soc. Zool. Fr. 118: 25-36
  22. ROGERS W.A. 1967: Studies on Dactylogyrinae (Monogenea) with descriptions of 24 new species of Dactylogyrus, 5 new species of Pellucidhaptor, and the proposal of Aplodiscus gen. n. J. Parasitol. 53: 501-524 Go to original source... Go to PubMed...
  23. RUIZ-CARUS R., URIBE-ALCOCER M. 2003: Phylogenetic assessment of Eucinostomus gula, Eugerres plumieri, and Diapterus auratus (Pisces: Gerreidae) based on allozyme and mtDNA analyses. Caribb. J. Sci. 39: 109-115
  24. SANTOS C.P., TIMI J.T., GIBSON D.I. 2002: Diplectanum squamatum n. sp. (Monogenea: Diplectanidae) from the gills of Cynoscion guatucupa (Sciaenidae) in Southwest Atlantic waters. Syst. Parasitol. 52: 199-204 Go to original source... Go to PubMed...
  25. VINSON C., GOMES G., SCHNEIDER H., SAMPAIO I. 2004: Sciaenidae fish of the Caete River estuary, Northern Brazil: mitochondrial DNA suggests explosive radiation for the Western Atlantic assemblage. Gen. Mol. Biol. 27: 174-180 Go to original source...