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Pesquisas sobre nematóides da família Mononchidae encontrados no Brasil

Resumos

A família Mononchidae de nematóides predadores encerra presentemente 16 gêneros, dos quais 7 foram encontrados no País. Tôdas as espécies referidas para a nossa fauna são alistadas, com observações sobre sua morfologia, hábitos, etc. É descrita uma espécie nova - Sporonchulus paucidentatus, e redescritas varias outras com base em espécimes brasileiros. O autor discute ainda a morfologia e o papel dos nematoides da família em causa como membros do complexo biótico do solo e dá chaves para auxiliar o reconhecimento dos gêneros e especies constatados no País.


The following items concerning Mononchid nematodes are dealt with in this paper: a) A historical review of the family Mononchidae from the establishment of the type genus Mononchus Bastian, 1865, to our present days. Sixteen genera are recognized in the family. Morphology, based particularly on species found in Brazil. c) A review of the role assumed by the Mononchidae as members of the biotic complex of soil, with observations on behavior of species found in Brazil. Two Mononchus papillatus females showed in the gut larvae apparently belonging to its own species, thus confirming occurrence of cannibalism. d) A description of a new species (Sporonchulus paucidentatus n. sp.) and redescriptions of a few other forms that the author found in the Country for the first time. These were: Sporonchulus dentatus, Mononchus papillatus, Mylonchulus incurvus and Mylonohulus sigmaturus. A species closely resembling M. incurvus is described and provisionaly named Mylonchulus sp. Diagnosis of S. paucidentatus n. sp. - A Sporonchulus having the dimensions cited in the description, an arcuated tail, and stoma armed with 4 subventral denticles only. e) A key for separating the genera known to occur in Brazil. f) A list of the species of Mononchidae found in Brazil, with citation of the pertinent literature and observations on distribution, morphology, habits, etc. g) Keys for separating the species of the genera found in the Country.


Pesquisas sobre nematóides da família Mononchidae encontrados no Brasil* * A literatura mencionada no capítulo: "Relação dos Mononchidae da fauna brasileira", sob os nomes das respectivas espécies, nao é repetida aqui.

Luiz Gonzaga E. Lordello

Departamento de Zoologia. ESALQ

RESUMO

A família Mononchidae de nematóides predadores encerra presentemente 16 gêneros, dos quais 7 foram encontrados no País. Tôdas as espécies referidas para a nossa fauna são alistadas, com observações sobre sua morfologia, hábitos, etc. É descrita uma espécie nova - Sporonchulus paucidentatus, e redescritas varias outras com base em espécimes brasileiros.

O autor discute ainda a morfologia e o papel dos nematoides da família em causa como membros do complexo biótico do solo e dá chaves para auxiliar o reconhecimento dos gêneros e especies constatados no País.

SUMMARY

The following items concerning Mononchid nematodes are dealt with in this paper:

a) A historical review of the family Mononchidae from the establishment of the type genus Mononchus Bastian, 1865, to our present days. Sixteen genera are recognized in the family.

Morphology, based particularly on species found in Brazil.

c) A review of the role assumed by the Mononchidae as members of the biotic complex of soil, with observations on behavior of species found in Brazil. Two Mononchus papillatus females showed in the gut larvae apparently belonging to its own species, thus confirming occurrence of cannibalism.

d) A description of a new species (Sporonchulus paucidentatus n. sp.) and redescriptions of a few other forms that the author found in the Country for the first time. These were: Sporonchulus dentatus, Mononchus papillatus, Mylonchulus incurvus and Mylonohulus sigmaturus. A species closely resembling M. incurvus is described and provisionaly named Mylonchulus sp.

Diagnosis of S. paucidentatus n. sp. - A Sporonchulus having the dimensions cited in the description, an arcuated tail, and stoma armed with 4 subventral denticles only.

e) A key for separating the genera known to occur in Brazil.

f) A list of the species of Mononchidae found in Brazil, with citation of the pertinent literature and observations on distribution, morphology, habits, etc.

g) Keys for separating the species of the genera found in the Country.

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LITERATURA CITADA

Entregue para publicação em 6/3/1970.

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  • *
    A literatura mencionada no capítulo: "Relação dos Mononchidae da fauna brasileira", sob os nomes das respectivas espécies, nao é repetida aqui.
  • Datas de Publicação

    • Publicação nesta coleção
      11 Jun 2012
    • Data do Fascículo
      1970
    Universidade de São Paulo, Escola Superior de Agricultura Av.Páduas Dias, 11, C.P 9 / Piracicaba - São Paulo, Brasil, tel. (019)3429-4486, (019)3429-4401 - Piracicaba - SP - Brazil
    E-mail: scientia@esalq.usp.br