Boulengerula denhardti Nieden, 1912

Denhardti’s caecilian



Taxonomy & Nomenclature



Conservation Status

Last record: 1912 or prior

Rediscovered in 2016

IUCN RedList status: Critically Endangered


This species was originally reported as rediscovered by (Measey et al., 2012), with a second population discovered in 2016 (Malonza et al., 2016). But the original rediscovery population was later described as a new species, Boulengerula spawlsi (Wilkinson et al., 2017).






Biology & Ecology










Original scientific description:

Nieden, F. (1912). Uebersicht über die afrikanischen Schleichenlurche (Amphibia apoda). Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1912: 186-214.

Other references:

Bauer, Aaron M., Good, David A. and Günther, Rainer. (1993). An Annotated Type Catalogue of the Caecilians and Salamanders (Amphibia: Gymnophiona and Caudata) in the Zoological Museum, Berlin. Mitt. Zool. Mus. Berl. 69(2): 285-306.

IUCN SSC Amphibian Specialist Group. (2021). Boulengerula denhardti. The IUCN Red List of Threatened Species 2021: e.T209039855A158471401. Accessed on 10 November 2022.

Loader, Simon P. and Wilkinson, Mark. (2004). Boulengerula denhardti. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. ( Downloaded on 12 February 2013.

Loader, Simon P. et al. (2011). Molecular phylogenetics of Boulengerula (Amphibia: Gymnophiona: Caeciliidae) and implications for taxonomy, biogeography and conservation. Herpetological Journal 21: 5-16.

Malonza, P. K., Wasonga, V. D. and Nyamache, J. O. (2016). Underground for a century: Rediscovery and re-description of Boulengerula denhardti Nieden, 1912 (Amphibia: Gymnophiona: Herpelidae) from Lower Tana, Kenya. Unpublished Report submitted to National Museums of Kenya.

Measey, G. John, Muchai, Vincent and Spawls, Stephen. (2012). Rediscovery of Boulengerula denhardti Nieden 1912 (Amphibia: Gymnophiona: Caeciliidae) in Meru County, Kenya. African Zoology 47(1): 187-191.

Wilkinson, Mark, Loader, Simon P., Müller, H. and Gower, D.J. (2004). Taxonomic status and phylogenetic relationships of Boulengerula denhardti Nieden, 1912 (Amphibia: Gymnophiona: Caeciliidae). Mitt. Mus. Nat.kd. Berl., Zool. Reihe 80(1): 41-51.

Wilkinson, Mark, Malonza, Patrick K., Campbell, Patrick and Loader, Simon P. (2017). A new species of Boulengerula Tornier, 1896 (Amphibia: Gymnophiona: Herpelidae) from Kenya and the “rediscovery” of Boulengerula denhardti. Zootaxa 4286(4): 525-534.


<< Back to the Gymnophiona (Caecilians) database