Metaporcelaimus

  

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Rev 05/14/2025

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Metaporcelaimus Menu Ecosystem Functions and Services
Distribution Management
Return to Aporcelaimidae Menu Feeding  References
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Classification:

Enoplea
Dorylaimia
      Dorylaimida
                        Aporcelaimidae

Metaporcelaimus Lordello, 1965

Type species of the genus: Metaporcelaimus mombucae Lordello, 1965

Metaporcelaimus was erected by Lordello (1965), in his doctoral thesis, as a member of the family Dorylaimidae. Several authors overlooked the existence of the genus when reviewing and revising the Aporcelaimidae even though it later appeared in a, perhaps somewhat obscure, journal article (Lordello (1967) (see Alvarez-Ortega et al. (2013) for details). Andrassy (1976) recognized the genus as part of the Aporcelaimidae but as a junior synonym of Aporcelaimellus.  Later he re-established the genus Metaporcelaimus (Andrassy, 2001).
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Morphology and Anatomy:

Metaporcelaimus generally resembles Aporcelaimellus but  differs mainly in the morphology of the tail region and sometimews in the body width..  In Metaporcelaimus the ratio a (length/width) is usually > 30, that is, most of these species are quite slender.  In Aporcalaimellus the ratio a is more variable, ranging from 19 to 49; that is, some species are slender, others quite robust. In Metaporcelaimus the tail is conoid with a rounded tip and longer than the abd; it is shorter and more rounded in Aporcelaimellus. It is also similar to Aporcella except that it is more slender and the  pars refringens vaginae is usually present.

 Ref: Alvarez-Ortega et al., 2013

 

 

 

 

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 Female:  
Males:

 
Body size range for the species of this genus in the database - Click:
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Distribution:

 

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Feeding:

Food Sources and Feeding strategies for the genus Metaporcelaimus

  Probably similar to Aporcelaimellus: predators and omnivores (Yeates et al., 1993)  
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Biology and Ecology:

  Most species have been reported from undisturbed soils in natural areas,often in the rhizosphere of trees.

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Life Cycle:

For Ecophysiological Parameters for this genus, click 
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Ecosystem Functions and Services:

Predation and regulation of opportunistic species.

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Management:

 

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References:

Alvarez-Ortega, S., Subbotin, S., Pena-Santiago, R. 2013. Morphological and molecular characterisation of California species of Metaporcelaimus Lordello, 1965 (Dorylaimida, Aporcelaimidae), with a new concept of the genus.  Nematology 15:251-278.

Andrassy, I. 1976. Evolution as a basis for the systemization of nematodes. Pitman Publishing, London UK.

Andrassy, I. 2001. A taxonomic review of the genera Aporcelaimus Thorne & Swanger, 1936 and Metaporcelaimus Lordello, 1965 (Nematoda: Aporcelaimidae) Opuscula Zoologica Budapestinensis 33:7-47.

Lordello, L.G.E. 1965. Contribucao parao conhecimiento dos nematoides brasileiros da familia Dorylaimidae. Tese Escola Superior de Agricultura 'Luiz de Queiroz' Piracicaba, Brazil.

Lordello, L.G.E. 1967. Sobre um genero e tres especies da nematoides de familia Dorylaimidae. Anais da EscolaSuperior de Agricultura de Queiroz 14:401-409.

 

 

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Copyright © 1999 by Howard Ferris.
Revised: May 14, 2025.