Neoechinorhynchus pimelodi sp.n. (Eoacanthocephala, Neoechinorhynchidae) parasitizing Pimelodus maculatus Lacépède, "mandi-amarelo" (Siluroidei, Pimelodidae) from the basin of the São Francisco river, Três Marias, Minas Gerais, Brazil

Brasil-Sato, Marília de Carvalho; Pavanelli, Gilberto Cezar

doi:10.1590/S0101-81751998000400019

Abstract

Neoechinorhynchus pimelodi sp.n. is described as the first record of Acanthocephala in Pimelodus maculatus Lacépède. 1803, collected in the São Francisco river, Três Marias, Minas Gerais. The new species is distinguished from other of the genus by the three circles of hooks of different sizes, and by the eggs measurements. The hooks measuring 100-1 12 (105), 32-40 (36) and 20-27 (23) in length in the males and 102-142 (129), 34-55 (47) and 27-35 (29) in length in the females for the anterior, middle and posterior circles. The eggs measuring 15-22 (18) in length and 12-15 (14) in width, with concentric layers of texture smooth, enveloping the acanthor.

Acanthocephala; Neoechinorhynchidae; Neoechinorhynchus pimelodi sp.n.; Pimelodus maculatus; São Francisco river; Brazil

Neoechinorhynchus pimelodi sp.n. (Eoacanthocephala, Neoechinorhynchidae) parasitizing Pimelodus maculatus Lacépède, "mandi-amarelo" (Siluroidei, Pimelodidae) from the basin of the São Francisco river, Três Marias, Minas Gerais, Brazil

Marília de Carvalho Brasil-Sato^I; Gilberto Cezar Pavanelli^II

^IDepartamento de Biologia Animal, Universidade Federal Rural do Rio de Janeiro. Caixa Postal 74539, 23851-970 Seropédica, Rio de Janeiro, Brasil

^IIDepartamento de Biologia, Núcleo de Pesquisa em Limnología, Ictiología e Aquicultura, Universidade Estadual de Maringá. 87020-900 Maringá, Paraná, Brasil

ABSTRACT

Neoechinorhynchus pimelodi sp.n. is described as the first record of Acanthocephala in Pimelodus maculatus Lacépède. 1803, collected in the São Francisco river, Três Marias, Minas Gerais. The new species is distinguished from other of the genus by the three circles of hooks of different sizes, and by the eggs measurements. The hooks measuring 100-1 12 (105), 32-40 (36) and 20-27 (23) in length in the males and 102-142 (129), 34-55 (47) and 27-35 (29) in length in the females for the anterior, middle and posterior circles. The eggs measuring 15-22 (18) in length and 12-15 (14) in width, with concentric layers of texture smooth, enveloping the acanthor.

Key words: Acanthocephala, Neoechinorhynchidae, Neoechinorhynchus pimelodi sp.n., Pimelodus maculatus, São Francisco river, Brazil.

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ACKNOWLEDGEMENTS. The authors wish to thank the biologist Yoshimi Sato, CODE-VASF, Três Marias, Minas Gerais, Brazil, for the collection and identification of the hosts, and CODEVASF for logistic support during the study. Thanks are also due to Dr. James C. Chubb and Mr. C. J. Veltkamp, University of Liverpool, Liverpool, England, for the SEM photograph, to Dr. Celso Magalhães, curator of the Invertebrate Collection of INPA, Amazonas, Brazil, for the loan of the paratypes examined, to Dr. J. Ralph Lichtenfels, United States Department of Agriculture, Beltsville, Maryland, USA, for the loan of voucher specimens and for depositing type specimens at USNPC, and to Dr. Dely Noronha, Heiminthologic Collection of FIOCRUZ. Rio de Janeiro, Brazil, for depositing type specimens.

REFERENCES

AMIN, O.M. 1987. Key to the families and subfamilies of Acanthocephala with the erection of a new class (Polyacanthocephala) and a new order (Polyacanthorhy n-chida). Jour. Parasitol. 73: 1216-1219.

BRITSKI, H.A.; Y. SATO & A.B.S. ROSA. 1984. Manual de identificação de peixes da região de Três Marias (Com chaves de identificação para os peixes da bacia do rio São Francisco). Brasília, Câmara dos Deputados, Coordenação de Publicação - codevasf, Divisão de Piscicultura e Pesca, 143p.

GOL VAN, Y.J. 1994. Nomenclature of the Acanthocephala. Res. Rev. Parasit. 54: 135-205.

KOHN, A.; B.M.M. FERNANDES; B. MACEDO & B. ABRAMSON. 1985. Helminths parasites of freshwater fishes from Pirassununga, SP, Brazil. Mem. Inst. Oswaldo Cruz 80:327-336.

MACHADO FILHO, D.A. 1954. Uma nova espécie do gênero Neoechinorhynchus (Hamann) (Neoechinorhynchidae, Acanthocephala). Rev. Brasil. Biol. 14: 55-57.

______. 1959. "Neoechinorhynchus spectabilis" sp.n. (Neoechinorhynchidae, Acanthocephala). Rev. Brasil. Biol. 19: 191-194.

MARGOLIS, L.; G.W. ESCH; J.C. HOLMES; A.M. KURIS & G.A. SCHAD. 1982. The use of ecological terms in parasitology (report of an ad hoc committee of the American Society of Parasitologists). Jour. Parasitol. 68: 131-133.

NICKOL, B.B. & T.N. PADILHA. 1979. Neoechinorhynchus paraguayensis (Acanthocephala: Neoechinorhynchidae) from Brazil. Jour. Parasitol. 65: 987-989.

NICKOL, B.B. & V.E. THATCHER. 1971. Two new acanthocephalans from neotropical fishes: Neoechinorhynchusprochilodonim sp.n. and Goiytocephalus ple-costomorum gen. et sp.n. Jour. Parasitol. 57: 576-581.

NORONHA, D. 1984. Remarks on Neoechinorhynchus curemai Noronha, 1973 (Eoacanthocephala, Ncoechinorhynchidae). Mem. Inst. Oswaldo Cruz 79: 271.

SCHMIDT, G.D. & E.J. HUGGHINS. 1973. Acanthocephala of South american fishes. Part I. Eoacanthocephala. Jour. Parasitol. 59: 829-835.

THATCHER, V.E. 1981. Neoechinorhynchus pterodoridis n.sp. (Acanthocephala: Neoechinorhynchidae) do bacu liso (Pterodoras granulosus) da Amazônia Brasileira. Acta Amazônica 11: 445-448.

______. 1991. Amazon Fish Parasites. Amazoniana 11: 263-572.

VIZCAINO, S.I. 1992. Espécie nueva del gênero Neoechinorhynchus (Acanthocephala-Neoechinorhynchidae) parasita de peces de Argentina. An. Inst. Biol. Univ. Nac. Autón. México, Zool., 63: 179-184.

YAMAGUTI, S. 1963. Systema Helminthum. IV. Acanthocephala. New York, Interscience Publishers, John Wiley & Sons Inc., 423p. Zar, J.H. 1996. Biostatistical Analysis. New Jersey, Prentice Hall Inc., 3^rd ed., 662p.

Recebido em 01.VIII.1998; aceito em 24.XI.1998.

AMIN, O.M. 1987. Key to the families and subfamilies of Acanthocephala with the erection of a new class (Polyacanthocephala) and a new order (Polyacanthorhy n-chida). Jour. Parasitol. 73: 1216-1219.
BRITSKI, H.A.; Y. SATO & A.B.S. ROSA. 1984. Manual de identificação de peixes da região de Três Marias (Com chaves de identificação para os peixes da bacia do rio São Francisco). Brasília, Câmara dos Deputados, Coordenação de Publicação - codevasf, Divisão de Piscicultura e Pesca, 143p.
GOL VAN, Y.J. 1994. Nomenclature of the Acanthocephala. Res. Rev. Parasit. 54: 135-205.
KOHN, A.; B.M.M. FERNANDES; B. MACEDO & B. ABRAMSON. 1985. Helminths parasites of freshwater fishes from Pirassununga, SP, Brazil. Mem. Inst. Oswaldo Cruz 80:327-336.
MACHADO FILHO, D.A. 1954. Uma nova espécie do gênero Neoechinorhynchus (Hamann) (Neoechinorhynchidae, Acanthocephala). Rev. Brasil. Biol. 14: 55-57.
______. 1959. "Neoechinorhynchus spectabilis" sp.n. (Neoechinorhynchidae, Acanthocephala). Rev. Brasil. Biol. 19: 191-194.
MARGOLIS, L.; G.W. ESCH; J.C. HOLMES; A.M. KURIS & G.A. SCHAD. 1982. The use of ecological terms in parasitology (report of an ad hoc committee of the American Society of Parasitologists). Jour. Parasitol. 68: 131-133.
NICKOL, B.B. & T.N. PADILHA. 1979. Neoechinorhynchus paraguayensis (Acanthocephala: Neoechinorhynchidae) from Brazil. Jour. Parasitol. 65: 987-989.
NICKOL, B.B. & V.E. THATCHER. 1971. Two new acanthocephalans from neotropical fishes: Neoechinorhynchusprochilodonim sp.n. and Goiytocephalus ple-costomorum gen. et sp.n. Jour. Parasitol. 57: 576-581.
NORONHA, D. 1984. Remarks on Neoechinorhynchus curemai Noronha, 1973 (Eoacanthocephala, Ncoechinorhynchidae). Mem. Inst. Oswaldo Cruz 79: 271.
SCHMIDT, G.D. & E.J. HUGGHINS. 1973. Acanthocephala of South american fishes. Part I. Eoacanthocephala. Jour. Parasitol. 59: 829-835.
THATCHER, V.E. 1981. Neoechinorhynchus pterodoridis n.sp. (Acanthocephala: Neoechinorhynchidae) do bacu liso (Pterodoras granulosus) da Amazônia Brasileira. Acta Amazônica 11: 445-448.
______. 1991. Amazon Fish Parasites. Amazoniana 11: 263-572.
VIZCAINO, S.I. 1992. Espécie nueva del gênero Neoechinorhynchus (Acanthocephala-Neoechinorhynchidae) parasita de peces de Argentina. An. Inst. Biol. Univ. Nac. Autón. México, Zool., 63: 179-184.
YAMAGUTI, S. 1963. Systema Helminthum. IV. Acanthocephala. New York, Interscience Publishers, John Wiley & Sons Inc., 423p.
Zar, J.H. 1996. Biostatistical Analysis. New Jersey, Prentice Hall Inc., 3^rd ed., 662p.

Publication Dates

Publication in this collection
01 July 2009
Date of issue
Dec 1998

History

Accepted
24 Nov 1998
Received
01 Aug 1998

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] AMIN, O.M. 1987. Key to the families and subfamilies of Acanthocephala with the erection of a new class (Polyacanthocephala) and a new order (Polyacanthorhy n-chida). Jour. Parasitol. 73: 1216-1219.

[2] BRITSKI, H.A.; Y. SATO & A.B.S. ROSA. 1984. Manual de identificação de peixes da região de Três Marias (Com chaves de identificação para os peixes da bacia do rio São Francisco). Brasília, Câmara dos Deputados, Coordenação de Publicação - codevasf, Divisão de Piscicultura e Pesca, 143p.

[3] GOL VAN, Y.J. 1994. Nomenclature of the Acanthocephala. Res. Rev. Parasit. 54: 135-205.

[4] KOHN, A.; B.M.M. FERNANDES; B. MACEDO & B. ABRAMSON. 1985. Helminths parasites of freshwater fishes from Pirassununga, SP, Brazil. Mem. Inst. Oswaldo Cruz 80:327-336.

[5] MACHADO FILHO, D.A. 1954. Uma nova espécie do gênero Neoechinorhynchus (Hamann) (Neoechinorhynchidae, Acanthocephala). Rev. Brasil. Biol. 14: 55-57.

[6] ______. 1959. "Neoechinorhynchus spectabilis" sp.n. (Neoechinorhynchidae, Acanthocephala). Rev. Brasil. Biol. 19: 191-194.

[7] MARGOLIS, L.; G.W. ESCH; J.C. HOLMES; A.M. KURIS & G.A. SCHAD. 1982. The use of ecological terms in parasitology (report of an ad hoc committee of the American Society of Parasitologists). Jour. Parasitol. 68: 131-133.

[8] NICKOL, B.B. & T.N. PADILHA. 1979. Neoechinorhynchus paraguayensis (Acanthocephala: Neoechinorhynchidae) from Brazil. Jour. Parasitol. 65: 987-989.

[9] NICKOL, B.B. & V.E. THATCHER. 1971. Two new acanthocephalans from neotropical fishes: Neoechinorhynchusprochilodonim sp.n. and Goiytocephalus ple-costomorum gen. et sp.n. Jour. Parasitol. 57: 576-581.

[10] NORONHA, D. 1984. Remarks on Neoechinorhynchus curemai Noronha, 1973 (Eoacanthocephala, Ncoechinorhynchidae). Mem. Inst. Oswaldo Cruz 79: 271.

[11] SCHMIDT, G.D. & E.J. HUGGHINS. 1973. Acanthocephala of South american fishes. Part I. Eoacanthocephala. Jour. Parasitol. 59: 829-835.

[12] THATCHER, V.E. 1981. Neoechinorhynchus pterodoridis n.sp. (Acanthocephala: Neoechinorhynchidae) do bacu liso (Pterodoras granulosus) da Amazônia Brasileira. Acta Amazônica 11: 445-448.

[13] ______. 1991. Amazon Fish Parasites. Amazoniana 11: 263-572.

[14] VIZCAINO, S.I. 1992. Espécie nueva del gênero Neoechinorhynchus (Acanthocephala-Neoechinorhynchidae) parasita de peces de Argentina. An. Inst. Biol. Univ. Nac. Autón. México, Zool., 63: 179-184.

[15] YAMAGUTI, S. 1963. Systema Helminthum. IV. Acanthocephala. New York, Interscience Publishers, John Wiley & Sons Inc., 423p.

[16] Zar, J.H. 1996. Biostatistical Analysis. New Jersey, Prentice Hall Inc., 3^rd ed., 662p.