The Recently Extinct Plants and Animals Database


Rhinodrilus fafner Michaelsen, 1918

Giant Brazilian earthworm

 

 

Taxonomy & Nomenclature

Original description:

Michaelsen, Wilhelm. (1918). Die Lumbriciden, mit besonderer Berücksichtigung der bisher als Familie Glossoscolecidae zusammengefaßten Unterfamilien. In: Zoologische Jahrbücher. Vol. 41: 1-398, Abteilung für Systematik, Geographie und Biologie der Tiere, Gustav Fischer Verlag, Jena. [in German]

 

Conservation Status

Last record: 1912

At least two searches for this species, in 1967 and 1968, failed to find it (Righi & Maria, 1998). Rhinodrilus fafner was declared officially extinct by the Brazilian government in 2003 (Ministério do Meio Ambiente, 2003).

 

Distribution

Minas Gerais State, Brazil

 

Biology

 

Hypodigm

This species is only known from the holotype, collected on 5 May 1912 by F. Jikan (Michaelsen, 1918:195; Brown et al. 2012:141). The holotype is now highly fragmented, and only c.70cm of the original 1.4m portion of the animal preserved now survives (Brown et al. 2012:141).

 

Media

 

 

References

Original description:

Michaelsen, Wilhelm. (1918). Die Lumbriciden, mit besonderer Berücksichtigung der bisher als Familie Glossoscolecidae zusammengefaßten Unterfamilien. In: Zoologische Jahrbücher. Vol. 41: 1-398, Abteilung für Systematik, Geographie und Biologie der Tiere, Gustav Fischer Verlag, Jena. [in German]

 

Other references:

Brown, George G., James, Samuel W. and Marini-Filho, Onildo J. (2012). Avaliação do risco de extinção do minhocuçu Rhinodrilus fafner Michaelsen, 1918. BioBrasil 2(2): 140-144.

James, S. W. and Brown, G. G. (2006). Earthworm Ecology and Diversity in Brazil, pp. 56-116. In: Moreira, F. M. S., Siqueira, J. O. and Brussaard, L. Soil Biodiversity in Amazonian and Other Brazilian Ecosystems. Wallingford, Oxfordshire, U.K. & Cambridge, Massachusetts, USA: CABI Publishing. [Relevant page]

Ministério do Meio Ambiente. (2003). Instrução Normativa Nº 003, de 26 de maio de 2003. Diário Oficial da União. Nº 101, 28/05/03:88-97.

Righi, G. and de Maria, M. (1998). Oligoquetas, pp. 573-583. In: Machado, A.B.M, Fonseca, G.A.B., Machado, R.B., Aguiar, L.M.S. and Lins, L.V. (ed.). Livro vermelho das espécies ameaçadas de extinção da fauna de Minas Gerais. Belo Horizonte: Fundação Biodiversitas.

https://extinctanimals.proboards.com/thread/12656/rhinodrilus-fafner-giant-brazilian-earthworm

 

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