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Published: 2023-03-15

Additions to earthworms (Annelida, Crassiclitellata) from Aragua and Miranda states, Venezuela

Postgraduate Program in Agroecology, Maranhão State University (UEMA), Avenida Lourenço Vieira da Silva 1000, Jardim São Cristovão, 65055-310 São Luís, Maranhão, Brazil.
Postgraduate Program in Agroecology, Maranhão State University (UEMA), Avenida Lourenço Vieira da Silva 1000, Jardim São Cristovão, 65055-310 São Luís, Maranhão, Brazil.
◊Biology Deparment, Maranhão State University (UEMA), Avenida Lourenço Vieira da Silva 1000, Jardim São Cristovão, 65055-310 São Luís, Maranhão, Brazil.
Annelida Oligochaeta Megadrili Rhinodrilidae Onychochaeta Pontoscolex


Two new species of the earthworm genus Pontoscolex found in San Casimiro County, northern Venezuela are described. Because of some morphological variability, and to improve the previous description, we redescribe Onychochaeta windlei and Rhinodrilus fuenzalidae collected at La Cortada settlement, Miranda state. Pontoscolex (Mesoscolex) juanae sp. n. and Pontoscolex (Nulloscolex) hugoi subgen. n., sp. n have three pairs of tiny calciferous glands in 7th to 9th segments, with a simple tubular structure similar to that of the genus Onychochaeta; however, testes and funnels are enclosed in sacs in the 11th segment similar to the Pontoscolex. We also report the occurrences of Pontoscolex (Pontoscolex) corethrurus Müller, 1857, Metaphire houlleti (Perrier, 1872), Perionyx excavatus Perrier, 1872, Dichogaster bolaui (Michaelsen, 1891), and Eisenia fetida (Savigny, 1826).



  1. Araujo, Y. & López-Hernández, D. (1999) Earthworm populations in a savanna-agroforestry system of Venezuelan Amazonia. Biology and Fertility of Soils, 29 (4), 413–418.
    Anderson, J.M. & Ingram, J.S.I. (1993) Tropical Soil Biology and Fertility: a Handbook of Methods. 2ed Edition. C.A.B International, Oxford, 221 pp.
    Bauer, A.M., Parham, J.F., Brown, R.M., Stuart, B.L., Grismer, L., Papenfuss, T.J., Böhme, W., Savage, J.M., Carranza, S., Grismer, J.L., Wagner, P., Schmitz, A., Ananjeva, N.B. & Inger, R.F. (2011) Availability of new Bayesian-delimited gecko names and the importance of character-based species descriptions. Proceedings of the Royal Society B: Biological Sciences, 278 (1705), 490–492.
    Beddard, F.E. (1890) On the structure of a species of earthworm belonging to the genus Diachaeta. Quarterly Journal of Microscopical Science, 31, 159–174.
    Beddard, F.E. (1891) The classification and distribution of earthworms. Proceedings of the Royal Physical Society of Edinburgh, 10 (2), 235–525.
    Blakemore, R.J. (2002) Cosmopolitan Earthworms –an Eco-Taxonomic Guide to the Peregrine Species of the World. VermEcology, Kippax, ACT, Australia, 506 pp.
    Cordero, E.H. (1944) Oligoquetos sudamericanos de la familia Glossoscolecidae. IV- Sobre algunas especies de Venezuela. Comunicaciones de Zoologia, Museo Historia Natural de Montevideo, 1 (14), 1–6.
    Cordero, E.H. (1945) Oligoquetos sudamericanos de la familia Glossoscolecidae. VI- Los géneros de la Subfamilia Glossocolecinae, sus probables relaciones fileticas y su distribución geográfica actual. Comunicaciones de Zoologia, Museo Historia Natural de Montevideo, 1 (22), 1–28, 1 pl.
    Easton, E.G. (1976) Taxonomy and distribution of the Metapheretima elongata species-complex of Indo Australasian earthworms (Megascolecidae: Oligochaeta). Bulletin of the British Museum (Natural History) Zoology, 30, 31–53.
    Feijoo-Martínez, A., Pena-Venegas, C.P. & Zuluaga, L.F. (2020) New species of earthworms (Oligochaeta: Rhinodrilidae) from the Colombian Amazonia region. Revista mexicana de biodiversidad, 91, e913085.
    Grube, E. (1879) Annelids. In: An account of the petrological, botanical and zoological collection made in Kergelen`s Land and Rodríguez during the Transit of Venus Expedition carry out by order of Her Majestry`s Government in the years 1874-75. Philosophical Transactions of the Royal Society of London, 168, 554–556.
    James, S.W. (2012) Re-erection of Rhinodrilidae Benham, 1890, a senior synonym of Pontoscolecidae James, 2012 (Annelida: Clitellata). Zootaxa, 3540 (1), 67–68.
    Michaelsen, W. (1891) Oligochaeten des Naturhistorischen Museums in Hamburg. IV. Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten, 8, 1–42.
    Müller, F. (1857) Description of a new species of earthworm (Lumbricus corethrurus). Annals and Magazine of Natural History, 20, 13–151.
    Nemeth, A & Herrera, R. (1982) Earthworm populations in a Venezuela tropical rain forest. Pedobiologia, 23, 437–443.
    Pacheco-Angulo, C., Vilanova, E., Aguado, I., Monjardin, S. & Martinez, S. (2017) Carbon emissions from deforestation and degradation in a forest reserve in Venezuela between 1990 and 2015. Forests, 8 (8), 291.
    Perrier, E. (1872) Recherches pour servir a l’histoire des Lombriciens terrestres. Nouvelles Archives du Muséum d’Histoire Naturelle, 8, 5–198.
    Pey, B, Nahmani, J., Auclerc, A., Capowiez, Y., Cluzeau, D., Cortet, J., Decaëns, T., Deharveng, L., Dubs, F., Joimel, S., Briard, C., Grumiaux, F., Laporte, M.A., Pasquet, A., Pelosi, C., Pernin, C., Ponge, J.F., Salmon, S., Santorufo, L. & Hedde. M. (2014) Current use of and future needs for soil invertebrate functional traits in community ecology. Basic and Applied Ecology, 15, 194–206.
    QGIS Development Team. (2018) QGIS Geographic Information System. Open Source Geospatial Foundation Project. Available form: (accessed 12 Ocotber 2022)
    Righi, G. (1971) Sobre a Familia Glossoscolecidae (Oligochaeta) no Brasil. Arquivos de Zoologia, São Paulo, 20, 1–96.
    Righi, G. (1985) Sobre Rhinodrilus e Urobenus (Oligochaeta, Glossoscolecida). Boletim de Zoologia, Universidade de São Paulo, 9, 231–257.
    Savigny, J.C. (1826) Analyses des travaux de l’Académie Royale des Sciences pendant l’annee 1821, partie physique.Mémoirs d’Académie Royale des Sciences Institute de France, 5, 176–184.
    Sims, R.W. & Easton, E.G. (1972) A numerical revision of the earthworm genus Pkeretima auct. (Megascolecidae: Oligochaeta) with the recognition of new genera and an appendix on the earthworms collected by the Royal Society North Borneo Expedition. Biological Journal of the Linnean Society. 4 (3), 169–268.
    Sims, R.W. & Gerard, B.M. (1985) Earthworms: keys and notes for the identification and study of the species. Synopsis of the British Fauna (New Series) No. 31. Brill Archive. The Pitman Press, 171 pp.
    Sruthi, S.N. & Ramasamy, E.V. (2018) Enrichment of soil organic carbon by native earthworms in a patch of tropical soil, Kerala, India: First report. Scientific reports, 8 (1), 1–7.