Vidthayanon and Kottelat 2003
Schistura aff reidi Borowsky and Vidthayanon 2001
Holotype: NIFI 3150 male 98.4mm SL. Paratypes: NIFI 3151 (11 specimens, 45.3-119.1mm SL), CMK 17294 (2 specimens, 61.6-75.4mm SL), NIFI 3077 male 78.4mm SL, NIFI 3078 2 females and 1 juvenile, 30.2-79.6mm SL.
Known only from the type locality: Tham Phra Wang Daeng cave, Thung Salaeng Luang National Park, Noen Maprang District, Phitsanulok Province, Thailand (16o40’41”N, 100o41’24”E). This species co-exists with Neolissochilus subterraneus.
Found throughout the length of the cave, in all water depths, and with no substrate preference. Possibly feeds on bacteria and detritus trapped on the water surface film. The largest animals were found in the passages furthest from the entrance.
Vidthayanon and Kottelat (2003) suggest that S. spiesi and S. deansmarti are sister species, sharing a common epigean ancestor. They are similar in morphology and found in caves which are close together. S. desmotes, a species found in adjacent river basins, is a possible close relative. Borowsky and Vidthayanon (2001), using DNA markers, suggest a close relationship with S. reidi.
TLO [VU D2:3.1:2012]
(Kottelat, M. 2012. Schistura spiesi. The IUCN Red List of Threatened Species 2012: http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T169536A1278462.en. Downloaded on 14 July 2017). The species is only known from the Tham Prawangdaeng cave in Phitsanulok Province, northern Thailand. The length of the cave stream (based on the length of the cave itself) is estimated as 3.7 km (Ellis 2010). It is considered very likely that the range of the species does not extend beyond the Tham Prawangdaeng cave formation. The species is assessed as Vulnerable (D2) on the basis of a restricted Area of Occupancy (estimated at between 8-26 km2, 1 location). Although the species habitat is within a National Park, it is considered vulnerable to pollution from logging, water pollution, and impacts from tourist activities. Current and potential threats are tourism development and degradation of the surrounding watershed and water quality, and combined with a very restricted Extent of Occurrence, the species could easily qualify for a higher threatened category if further information becomes available on the scope and nature of threats. [DD:3.1:2009].
As above plus NIFI 2997.
- Deharveng, L. and Bedos, A. (2001)
- Borowsky, R.L. and Vidthayanon, C. (2001)
- Vidthayanon, C. and Kottelat, M. (2003)
- Ellis, M. (2010)
- Duboue, E.R. and Borowsky, R. (2012)
- Brancelj, A., Boonyanusith, C., Watiroyram, S. and Sanoamuang, L. (2013)
- Ellis, M. (2018)
- Ellis, M. (2020)
- Marak, W.K. and Singh, Y.L. (2023)
|Deharveng, L. and Bedos, A.||Book Section||2001||Thailande|
|Borowsky, R.L. and Vidthayanon, C.||Journal Article||2001||Nucleotide diversity in populations of balitorid cave fishes from Thailand|
|Vidthayanon, C. and Kottelat, M.||Journal Article||2003||Three new species of fishes from Tham Phra Wang Daeng and Tham Phra Sai Ngam caves in northern Thailand (Teleostei: Cyprinidae and Balitoridae)|
|Ellis, M.||Journal Article||2010||The caves of Phitsanulok|
|Duboue, E.R. and Borowsky, R.||Journal Article||2012||Altered rest-activity patterns evolve via circadian independent mechanisms in cave adapted balitorid loaches|
|Brancelj, A., Boonyanusith, C., Watiroyram, S. and Sanoamuang, L.||Journal Article||2013||The groundwater-dwelling fauna of Southeast Asia|
|Ellis, M.||Journal Article||2018||The recorded fauna of the limestone caves of Thailand to April 2018|
|Ellis, M.||Journal Article||2020||The caves of western and central Thailand|
|Marak, W.K. and Singh, Y.L.||Journal Article||2023||Osteology of incomplete lateral lined schisturid loaches of Meghalaya: a comparative account|