|Red List Category & Criteria:
||FishBase team RMCA & Sparks, J.S.
||Raminosoa, N., Rasoloariniaina, R, Ravelomanana, T. & Velosoa, J.
||Geelhand, D., Musschoot, T., Boden, G., Participants of the CBSG/ANGAP CAMP "Faune de Madagascar" workshop, Mantasoa, Madagascar 2001 & Loiselle, P.V.
This species is endemic to southwestern Madagascar and occurs throughout the southern portion of the Mahafaly Plateau, south of the Onilahy River. It has a restricted range and a patchy distribution, given it only occurs in subterranean habitats and isolated locations such as caves, sinkholes and wells. For this species, the estimated extent of occurrence (EOO) is 300 km2. It is also only found at two locations and the habitat is declining. On this basis this species is assessed as Endangered. However, if further research finds these caves to hold numerous species with allopatric distributions in the region (e.g. the population near Toliara) then the assessment may need to be raised to Critically Endangered as the distribution range for each species will be lower than originally thought. Taxonomic work is required before such an assessment can be made.
|Previously published Red List assessments:|
- 2004 – Endangered (EN)
- 1996 – Vulnerable (VU)
|Range Description:||This blind and pigment-free obligate cave-dwelling species is endemic to Madagascar. It is restricted to subterranean habitats from near Ambilahilalika (approx. 23°52′S), located about midway between Soalara and Efoetse in the north, southward to the Nikotsy sinkhole, located just to the north of Itampolo (24°40′S) in southwestern Madagascar (Sparks and Chakrabarty 2012). Typhleotris madagascariensis is known from four sites within the Tsimanampetsotsa National Park: the Mitoho Cave tourist site, the Andranomalaza (Vintany) sinkhole, the Andranoilovy (Andranilove) Cave and the Andriamaniloke Cave (Sparks and Chakrabarty 2012). Elsewhere, it is found at following sites: the Mitoho sinkhole, located about one kilometre north of the Tsimanampetsotsa National Park, the Grotte de Lelia (Lalia) and the Nikotsy sinkhole, both just to the north of Itampolo, and near Tulear (Toliara) (Sparks and Chakrabarty 2012). Its presence just north of the Linta River needs to be confirmed (Sparks and Chakrabarty 2012).|
|♦ Number of Locations:||2||♦ Continuing decline in number of locations:||Unknown|
|♦ Extreme fluctuations in the number of locations:||No|
|♦ Upper elevation limit (metres):||10|
|Range Map:||Click here to open the map viewer and explore range.|