Folia Parasitologica, vol. 56 (2009), issue 4

Folia Parasitologica 56[4] 284-294 (2009) | 10.14411/fp.2009.033

New name for Progrillotia dollfusi Carvajal et Rego, 1983 (Cestoda: Trypanorhyncha): description of adults from Squatina guggenheim (Chondrichthyes: Squatiniformes) off the coast of Argentina

Adriana Menoret1,2, Verónica A. Ivanov1,2
1 Laboratorio de Helmintología, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Natu- rales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, piso 4, Lab. 52, C1428EHA, Buenos Aires, Argentina
2 Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)

Examination of the type material of Progrillotia dollfusi Carvajal et Rego, 1983, and of new specimens recently collected off the coast of Argentina (including plerocerci from 10 species of teleosts and adults from Squatina guggenheim Marini), allowed a detailed redescription of this species and the evaluation of its current taxonomic status. The following characters that have been treated inconsistently by different authors have been herein corrected or confirmed: band of hooklets on external surface restricted to the base of the tentacle, external surface of metabasal region with 3-5 intercalary hooks arranged in a single row merging immediately to a cluster of 3-4 hooklets arranged in two rows; retractor muscle originating in the posterior third of the bulb, hollow hooks, and posterior margin of bothria notched. These features along with the presence of postovarian testes in the adults clearly confirm the placement of P. dollfusi in the genus Grillotia Guiart, 1927. In order to avoid the homonymy with Grillotia dollfusi Carvajal, 1971, a new name, Grillotia carvajalregorum nom. n., is proposed. This species differs from the 16 valid species in the genus in the combination of the following characters: number and morphology of hooks in principal rows in proximal metabasal region of the tentacle, number and distribution of intercalary hooks, presence of clusters of hooklets, extent of band of hooklets on external surface of basal armature, site of origin of the retractor muscle, and features of the terminal genitalia. The present study describes the plerocerci and adult worms, and provides detailed description of the microthrix pattern and histology of this species for the first time.

Keywords: Progrillotia dollfusi, new name, Trypanorhyncha, Grillotia carvajalregorum, Squatina guggenheim

Received: August 27, 2009; Accepted: November 3, 2009; Published: December 1, 2009


References

  1. Beveridge I., Campbell R.A. 2001: Grillotia australis n. sp. and G. pristiophori n. sp. (Cestoda: Trypanorhyncha) from Australian elasmobranch and teleost fishes. Syst. Parasitol. 49: 113-126 Go to original source... Go to PubMed...
  2. Beveridge I., Campbell R.A. 2007: Revision of the Grillotia erinaceus (van Beneden, 1858) species complex (Cestoda: Trypanorhyncha), with the description of G. brayi n. sp. Syst. Parasitol. 68: 1-31 Go to original source... Go to PubMed...
  3. Beveridge I., Neifar L., Euzet L. 2004: Review of the genus Progrillotia Dollfus, 1946 (Cestoda: Trypanorhyncha), with a redescription of Progrillotia pastinacae Dollfus, 1946 and description of Progrillotia dasyatidis sp. n. Folia Parasitol. 51: 33-44 Go to original source... Go to PubMed...
  4. Bicudo A.J.A., Tavares L.E.R., Luque J.L. 2005: Metazoarios parasitos da cabrinha Prionotus punctatus (Bloch, 1793) (Osteichthyes: Triglidae) do litoral do Estado do Rio de Janeiro, Brasil. Rev. Bras. Parasitol. Vet. 14: 27-33 Go to PubMed...
  5. Campbell R.A., Beveridge I. 1993: New species of Grillotia and Pseudogrillotia (Cestoda: Trypanorhyncha) from Australian sharks, and definition of the family Grillotiidae Dollfus, 1969. Trans. R. Soc. S. Aust. 117: 37-46
  6. Campbell R.A., Beveridge I. 1994: Order Trypanorhyncha Diesing, 1863. In: L.F. Khalil, A. Jones and R.A. Bray (Eds.), Keys to the Cestode Parasites of Vertebrates. Wallingford, UK, pp. 51- 148
  7. Carvajal J., Rego A.A. 1983: Progrillotia dollfusi sp. n. (Cestoda: Trypanorhyncha) parasito de pescada do litoral brasileiro. Mem. Inst. Oswaldo Cruz 78: 231-234 Go to original source...
  8. Chervy L. 2009: Unified terminology for cestode microtriches: a proposal from International Workshops on Cestode Systematics in 2002-2008. Folia Parasitol. 56: 199-230 Go to original source... Go to PubMed...
  9. Dollfus R.P. 1946: Notes diverses sur des tetrarhynques. Mem. Mus. Natl. Hist. Nat. 22: 179-220
  10. Keeney D.B., Campbell R.A. 2001: Grillotia borealis sp. n. (Cestoda: Trypanorhyncha) from five species of Bathyraja (Rajiformes: Arhynchobatidae) in the North Pacific Ocean with comments on parasite enteric distribution. Folia Parasitol. 48: 21-29 Go to original source... Go to PubMed...
  11. Knoff M., Sao Clemente S.C., Magalhaes Pinto R., Correa G omes D. 2002: Prevalencia e intensidade de infeccao de cestoides Trypanorhyncha de elasmobranquios nos estados do Parana e Santa Catarina, Brasil. Parasitol. Latinoam. 57: 149- 157 Go to original source...
  12. Knoff M., Sao Clemente S.C., Magalhaes P into R., Lanfredi R.M., Correa Gomes D. 2004: Taxonomic reports of Otoboth roidea (Eucestoda, Trypanorhyncha) from elasmobranch fishes of the southern coast off Brazil. Mem. Inst. Oswaldo Cruz 99: 31-36 Go to original source... Go to PubMed...
  13. Luque J.L., Poulin R. 2004: Use of fish intermediate hosts by helminth parasites: a comparative analysis. Acta Parasitol. 49: 353-361
  14. Nybelin O. 1940: Sur le Tetrarhynchus minutus P. J. van Beneden. Goeteborgs Kungl. Vetenskaps- och Vitterhets-Samhaelles Handlingar, Femte Foeljden, Ser. B, 15: 1-20
  15. Palm H.W. 1995: Untersuchungen zur Systematik von Ruesselbandwuermern (Cestoda: Trypanorhyncha) aus atlantischen Fischen. Berichte aus dem Institut fuer Meereskunde an der Christian-Albrechts-Universitaet, Kiel, No. 275, 239 pp
  16. Palm H.W. 2004: The Trypanorhyncha Diesing, 1863. PKSPL-IPB Press, Bogor, 710 pp
  17. Palm H.W., Caira J.N. 2008: Host specificity of adult versus larval cestodes of the elasmobranch tapeworm order Trypanorhyncha. Int. J. Parasitol. 38: 381-388 Go to original source... Go to PubMed...
  18. Pereira J. 1998: Trypanorhyncha (Cercomeromorphae, Eucestoda) nos Sciaenidae (Neopterygii, Perciformes) do litoral do Rio Grande do Sul: sistematica, estrutura das comunidades componentes e sua utilizcao indicatores da estructura trofica da assembleia hospedeira. PhD thesis, Universidade Federal do Parana, Brazil, 247 pp
  19. Pereira J., Boeger W.A. 2005: Larval tapeworms (Platyhelminthes, Cestoda) from sciaenid fishes of the southern coast of Brasil. Zoosystema 27: 5-27
  20. Sabas C.S.S., Luque J.J. 2003: Metazoan parasites of weakfish, Cynoscion guatucupa and Macrodon ancylodon (Osteichthyes: Sciaenidae), from the coastal zone of the State of Rio de Janeiro, Brazil. Rev. Bras. Parasitol. Vet. 12: 171-178
  21. Sao C lemente S.C., Knoff M., Padovani R.E.S., De Lima F.C., Gomes D.C. 2004: Cestoides Trypanorhyncha parasitos de congro-rosa, Genypterus brasiliensis Regan, 1903 comercializados nos municipios de Niteroi e Rio de Janeiro, Brasil. Rev. Bras. Parasitol. Vet. 13: 97-102
  22. Sao Clemente S.C., Knoff M., De Lima F.C., Del Giudice De Andrada C., Felizardo N.N., Padovani R.E.S., Gomes D.C. 2007: Cestoides Trypanorhyncha parasitos de peixes sapo-pescador Lophius gastrophysus Miranda-Ribeiro, 1915 comercializados no estado do Rio de Janeiro, Brasil. Rev. Bras. Parasitol. Vet. 16: 37-42 Go to PubMed...
  23. Tanzola R.D., Guagliardo S.E. 2000: Helminth fauna of the conger, Conger orbignyanus (Pisces: Anguilliformes). Helminthologia 37: 229-232
  24. Tanzola R.D., Guagliardo S.E., Brizzola S.M., Arias M.V. 1997: Helminth fauna of Porichthys porosissimus (Pisces: Batrachoidiformes) in the estuary of Bahia Blanca Argentina. Helminthologia 34: 221-227
  25. Tanzola R.D., Guagliardo S.E., Brizzola S.M., Arias M.V., Botte S.E. 1998: Parasite assemblage of Sympterygia bonapartei (Pisces: Rajidae), an endemic skate of the Southwest Atlantic. Helminthologia 35: 123-129
  26. Timi J.T., Luque J.L., Sardella N.H. 2005: Parasites of Cynoscion guatucupa along South American Atlantic coasts: evidence for stock discrimination. J. Fish Biol. 67: 1603-1618 Go to original source...
  27. Whittaker F.H., Carvajal J., Apkarian R. 1982: Scanning electron microscopy of the scolex of Grillotia dollfusi Carvajal 1971 (Cestoda: Trypanorhyncha). J. Parasitol. 68: 1173-1175 Go to original source...