New additions in the 2006 update

There were 179 species added to the database in the 2006 update. In 2004 there were 5,743 species listed, and in 2006 this increased to 5,918. Not all of these additional species were new species descriptions; a few were sub-species recently elevated to species status, or species removed from synonymy. See Table 1 for a summary of these additions.


Origin of additional species Number of species
New species description 160
Removed from synonymy 13
Elevated from subspecies status 6
Table 1. Summary of new species additions in the 2006 update.


Not surprisingly, most of these additional species are considered Data Deficient, as there is not enough information currently known to make an assessment of their conservation status. A summary of the IUCN Red List categories assigned to the 179 additional species is given in Table 2 and Figure 1.


Legend Key Red List Category Number of species Percentage in category
  Extinct (EX) 0 0.0
  Extinct in the Wild (EW) 0 0.0
  Critically Endangered (CR) 9 5.0
  Endangered (EN) 17 9.5
  Vulnerable (VU) 12 6.7
  Near Threatened (NT) 5 2.8
  Least Concern (LC) 29 16.2
  Data Deficient (DD) 107 59.8
  TOTAL 179  
Table 2. Summary of IUCN Red List categories for new species additions in the 2006 update.


Summary of IUCN Red List categories for new species additions in the 2006 update
Figure 1. Summary of IUCN Red List categories for new species additions in the 2006 update.


Species that were no longer included

Three species were synonymised in the 2006 update that were previously listed in 2004.

Scinax trachythorax (Müller and Hellmich, 1936) and S. megapodius (Miranda-Ribeiro, 1926) are treated as separate species by some authors, but the most recent review of Hylidae considers them both to be a synonym of S. fuscovarius (Faivovich, et al., 2005), and the assessment adopted this new taxonomic assignment.

Phrynobatrachus tokba was known only from the type locality, but the more widespread Phrynobatrachus alticola (Guibé and Lamotte, 1962) was recently determined to be a synonym (Rödel et al., 2005). The type specimen of P. alticola has been lost, hence the synonymy had previously been difficult to confirm.

One species was relegated to subspecies status from species status. Rana holtzi Werner, 1898 is now regarded a subspecies of Rana macrocnemis according to Veith et al., 2003.


Faivovich, J., Haddad, C.F.B., Garcia, P.C.A., Frost, D.R., Campbell, J.A. and Wheeler, W.C. 2005 Systematic review of the frog family Hylidae with special reference to Hylinae: phylogenetic analysis and taxonomic revision. Bulletin of the American Museum of Natural History 294: 1-240.

Rödel, M.-O., Kosuch, J., Kouamé, N.G., Ernst, R. and Veith, M. 2005. Phrynobatrachus alticola Guibé & Lamotte, 1961 is a junior synonym of Phrynobatrachus tokba (Chabanaud, 1921). African Journal of Herpetology 54(1): 93-98.

Veith, M., Kosuch, J. and Vences, M. 2003. Climatic oscillations triggered post-Messinian speciation of Western Palearctic brown frogs (Amphibia, Anura, Ranidae). Molecular Phylogenetics and Evolution 26:310-327.