Angiostoma

  

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Rev 12/17/2024

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

Chromadorea

  Rhabditia

    Rhabditida

Tylenchina

      Rhabditoidea

        Angiostomatidae

 

        Angiostoma Dujardin, 1845

Type species of the genus: Angiostoma limacis Dujardin, 1845
Phylogenetic analyses using ribosomal genes have not been able to resolve the relationships between members of Angiostoma Dujardin, 1845 and Phasmarhabditis Andrassy, 1976 (Nermut et al., 2017; Ivanova and Spiridonov, 2018). Although mitochondrial COI genes have been proposed for this purpose by Singh et al. (2019), their potential will become more apparent when more data are collected (Ivanova and Spiridonov, 2022)
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Morphology and Anatomy:

Ref: Ivanova and Wilson, 2009

 

 

Female:

  •  Didelphic, amphidelphic. Uteri divergent; ovaries distally outstretched.
  • Large spherical oocytes arranged in rows.
  • Spermastheca in genital tube
  • Each uterus with eggs at different stages of development, including larvae ready to hatch.
  • Vulva near mid-body, slit-like; vulval lips inflated.

Male:

  • Monorchic.
  • Spermatocytes initially in 2 rows, then in single row,
  •  Bursa leptoderan or peloderan. Six to ten pairs of bursal pedunculate papillae.
  •  All rays reach edge of bursa,
  • Spicules equal size, arcuate and cephalate,gradually taper to rounded distal tips.
  • Gubernaculum small.
  • Phasmids at level of posterior third of tail.

 


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

 

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Feeding:

 Parasites mainly of terrestrial snails and slugs, also reptiles and amphibians.

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Biology and Ecology:

Paarasites of esophagus and intestine.

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Life Cycle:

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

 

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Management:

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References:

Ivanova, E.S. and Spiridonov, S.E. 2018. Angiostoma meets Phasmarhabditis: a case of Angiostoma kimmeriense Korol & Spiridonov, 1991. Russian Journal of Nematology 26: 77-85..

Ivanova, E.S., Spiridonov, S.E. 2022. Phasmarhabditis quinamensis sp. n. (Nematoda: Rhabditidae) from tropical terrestrial gastropods in southern Vietnam. Nematology 24:225-239.

Ivanova, E.S., Wilson, M.J. 2009. Two new species of Angiostoma Dujardin, 1845 (Nematoda: Angiostomatidae) from British terrestrial molluscs. Syst Parasitol 74:113-124. DOI 10.1007/s11230-009-9200-z

Nermut, J., Puza, V., Mekete, T. and Mracek, Z. 2017.  Phasmarhabditis bohemica n. sp. (Nematoda: Rhabditidae), a slug-parasitic nematode from the Czech Republic. Nematology 19, 93-107. DOI: 10.1163/15685411-00003034

Ross, J.L., Ivanova, E.S., Spiridonov, S.E., Waeyenberge, L., Moens, M., Nicol, G.W., Wilson, M.J. 2010. Molecular phylogeny of slug-parasitic nematodes inferred from 18S rRNA gene sequences. Molecular Phylogenetics and Evolution 55:738-743.

Singh, P.R., Couvreur, M., Decraemer, W. & Bert, W. 2019. Survey of slug-parasitic nematodes in East and West Flanders, Belgium and description of Angiostoma gandavensis n. sp. (Nematoda: Angiostomidae) from arionid slugs. Journal of Helminthology 94, e25. DOI: 10.1017/S0022149X19000105

Van Luc, P., Spiridonov, S.E. & Wilson, M.J. (2005). Aulachnema monodelphis n. g., n. sp. and Angiostoma coloaense n. sp. (Nematoda: Rhabditida: Angiostomatidae) from terrestrial molluscs of Vietnam. Systematic Parasitology 60, 91-97.

Waki, T., Hino, A. & Umeda, K. 2018. Angiostoma namekuji n. sp. (Nematoda: Angiostomatidae) from terrestrial slugs on Oshiba Island in the Seto Inland Sea, Japan. Systematic Parasitology 95, 913-920. DOI: 10.1007/s11230-018-9824-y

 

 
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Copyright © 1999 by Howard Ferris.
Revised: December 17, 2024.

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