Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Studies on the genus Sectonema Thorne, 1930 (Dorylaimida: Aporcelaimidae). Redescription of S. ventrale Thorne, 1930, the type species of the genus

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Nematology
For more content, see Nematologica.

Sectonema ventrale, the type species of the genus, is redescribed on the basis of type material as well as other specimens originally examined by Thorne. Description, morphometrics and LM pictures are provided. An updated diagnosis is given and the identity of several (other than type) populations is discussed. It is characterised by its 7.09-10.42 mm long body, lip region offset by deep constriction and 25-27 μm broad, mural tooth 12-14 μm long ventrally, pharyngeal expansion occupying 68-73% of total neck length, uterus 2.5-4.2 times the corresponding body diam., pars refringens vaginae well developed, V = 48-56, female tail rounded conoid (47-71 μm, c = 117-174, c′ = 0.7-0.8), spicules 120 μm long, and eight or nine irregularly spaced ventromedian supplements with a hiatus. The nature of the stomatal protrusible structure is analysed and discussed, concluding that it is more a reduced odontostyle than a typical mural tooth, a point that should be the subject of further studies.

Affiliations: 1: Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus ‘Las Lagunillas’ s/n, Edificio B3, 23071-Jaén, Spain


Full text loading...


Data & Media loading...

1. Altherr E. ( 1958). "Nématodes du bassin inférieur de la Weser et des dunes d’Héligoland: espèces nouvelles ou incomplètement décrites". Mémoires de la Société Vaudoise des Sciences Naturelles Vol 12, 45- 63.
2. Altherr E. ( 1965). "La faune des sables submergés des rives du Rhin près de Krefeld. Nématodes". Gewässer und Abwässer, Düsseldorf Vol 39/40, 80- 101.
3. Andrássy I. ( 1982). "Újabb huszonöt Nematoda faj a magyar faunában. [Further twenty-five nematode species new to the fauna of Hungary.]" Állattani Közlemények Vol 69, 139- 146.
4. Andrássy I. ( 1990). "Szabadon élő fonálférgek (Nematoda) a magyar faunában. [Free-living nematoda in the Hungarian fauna.]" Állattani Közlemények Vol 76, 17- 38.
5. Andrássy I. ( 2000). "Four large-sized species of the family Aporcelaimidae (Nematoda, Dorylaimida) with proposal of a new genus, Epacrolaimusgen. n." Opuscula Zoologica Budapest Vol 32, 3- 26.
6. Andrássy I. ( 2009). " Free-living nematodes of Hungary, III( Nematoda errantia)". In: Csuzdi C. , Mahunka S. (Eds). Pedozoologica Hungarica No. 5. Budapest, Hungary, Hungarian Natural History Museum and Systematic Zoology Research Group of the Hungarian Academy of Sciences.
7. Baird S.M. , Bernard E.C. ( 1984). "Nematode population and community dynamics in soybean-wheat cropping and tillage regimes". Journal of Nematology Vol 16, 379- 386.
8. Goodey T. ( 1963). Soil and freshwater nematodes, 2nd edition revised by J.B. Goodey. London, UK, Methuen.
9. Heyns J. ( 1965). "On the morphology and taxonomy of the Aporcelaimidae, a new family of dorylaimoid nematodes". Entomology Memoirs, Department of Agricultural Technical Services, Republic of South Africa Vol 10, 1- 51.
10. Jairajpuri M.S. , Ahmad W. ( 1992). Dorylaimida. Free-living, predaceous and plant-parasitic nematodes. New Delhi, India, Oxford & IBH Publishing.
11. Kreis H. ( 1924). "Die Seen im Aela- und Tinzenhorngebiet. II. Nematoden". Jahresbericht der Naturforschende Gesellschaft Graubündens Vol 63, 23- 68.
12. Loof P.A.A. , Coomans A. ( 1970). On the development and location of the oesophageal gland nuclei in Dorylaimina. Proceedings of the IX International Nematology Symposium (Warsaw, Poland, 1967), pp. 79-161.
13. Peña-Santiago R. , Abolafia J. , Álvarez-Ortega S. ( 2014). "New proposal for a detailed description of male spicules in dorylaims (Nematoda, Dorylaimida)". Nematology Vol 16, 1091- 1095.
14. Siddiqi M.R. ( 1995). "Nematodes of tropical rainforests. 5. Seven new genera and forty two new species of dorylaims". Afro-Asian Journal of Nematology Vol 5, 72- 109.
15. Thorne G. ( 1930). "Predaceous nemas of the genus Nygolaimusand a new genus Sectonema ". Journal of Agricultural Research, USDA Vol 41, 445- 466.
16. Thorne G. ( 1939). "A monograph of the nematodes of the superfamily Dorylaimoidea". Capita Zoologica Vol 8, 1- 261.
17. Thorne G. , Swanger H.H. ( 1936). "A monograph of the nematode genera DorylaimusDujardin, Aporcelaimusn. g., Dorylaimoidesn. g. and Pungentusn. g." Capita Zoologica Vol 6, 1- 223.
18. Vinciguerra M.T. ( 2006). "Dorylaimida Part II: superfamilies Dorylaimoidea". In: Eyualem-Abebe , Transpurger W. , Andrássy I. (Eds). Freshwater nematodes: ecology and taxonomy. Wallingford, UK, CAB International, pp.  392- 467.
19. Williams J.R. ( 1959). "Studies on the nematode soil fauna of sugarcane fields in Mauritius. 3. Dorylaimidae (Dorylaimoidea, Enoplida)". Mauritius Sugar Industry Research Institute Occasional Paper Vol 3, 1- 28.

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Nematology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation