(Günther 1868) Kottelat, Whitten, Kartikasari and Wirjoatmodjo 1993
Whether this species is troglobitic, or not, is not confirmed (see discssion below).
Barbus microps Günther 1868
Puntius microps (Günther 1868) Weber and De Beaufort 1916
Common name is Wader Goa
Syntypes: BMNH 1818.104.22.1684–336, 1822.214.171.1241–342
Type locality: Java (?)
Known also from:
Yawa Island (Doi 1997)
Originally placed in the genus Barbus (Gunther 1868), and later moved to Puntius (Weber and De Beaufort 1916), a revision in 1993 placed it firmly in the genus Barbodes (Kottelat et al. 1993). A member od the subfamily Smiliogastrinae.
Barbus microps was described by Günther (1868) and said to be closely allied to Barbus maculatus but with much smaller eyes. This species was from “Java (?)”. Jacobson (1912) reported on a visit to Java in February and March of 1911 and entitled his article “Iets over blinde visschen” which translates as “About blind fishes”. Specimens he collected were examined by Weber and DeBeaufort (1916) who decided that they were the same as Günther’s microps but they placed this species in the genus Puntius. The provenance of these specimens is given as “Java (subterraneous river in cave Djomblang near Gunung Sewu in Djocja !)”. They make the very significant remark that “some of the specimens from the above named cave, collected by Mr. E. Jacobson, have lost one or both eyes, probably through mutilation by crustacea”. Thines (1955:56-57, 1969:88) includes this species as one of his “poissons cavernicoles” but adds no further information.
In more recent times British cavers have explored many caves in the Gunung Sewu area of Java (see Waltham et al. (1983) for details of the area). In the same cave as that mentioned by Weber and DeBeaufort (1916), Gua Djomblang, Willis, Boothroyd and Briggs (1984) discovered and collected a number of small light coloured fishes. These were sent to the Natural History Museum in London where Keith Banister identified them as Barbus microps which he described as “quite widespread”. Some of the fishes have reduced eyes, some asymmetrically. Maurice Kottelat has examined these same specimens and is of the opinion that they are actually Puntius binotatus (pers. comm. 1998). The specimens are retained in the collection of Maurice Kottelat (accession number CMK 15108). It is possible that this is an incipient troglobitic population. Kottelat et al. (1993) placed microps in the genus Barbodes.
Tan and Husana (2021:309), in their description of Barbodes pyrpholeos, mention B. microps as follows: "Amongst the Sundaic populations of Barbodes, there is one cave-dwelling (troglobitic) species known from Java — B. microps. This poorly known species was described by Günther (1868) from the Gunung Sewu cave system, Central Java (according to Weber and de Beaufort 1916:186). Barbodes microps apparently exhibits a complete lack of pigmentation (see Kottelat et al. 1993:plate 16) and a variation in eye size and eye presence (eyes absent in some individuals). Haryono (2006) reported on the morphometry and meristics of 10 specimens of B. microps, and demonstrated morphometric differences between B. microps and B. binotatus (based on individuals from Sumatra, Kalimantan, and Java).
In tentative conclusion we can probably say the following about this species: It is known from at least three epigean locations and at least one hygean location. Strictly, therefore, it is at most a troglophile and not a troglobite. In Gua Jomblang are found individuals that are generally lightly pigmented and have eyes which are smaller than other species and often asymetrical. These are characteristic of fishes in early troglomorphy. It is at least possible that the Gua Jomblang fishes are isolated from epigean fishes (if they exist in the area of the cave) and form a troglobitic population. Further studies are needed to confirm or refute this possibilty. If confirmed it may be desireable to consider the cave population as a separate species.
Barbodes microps is protected under legislation within Indonesia (Iskander et al. 2020).
Juriani et al. (2020) assessed the conservation statis of B. microps within Way Sindalapai River, Liwa Botanical Garden, West Lampung as LC.
As above plus: CMK 15108
- Gunther, A. (1868)
- Jacobson, E. (1912)
- Weber, M. and de Beaufort, M.L. (1916)
- Waltham, A.C., Smart, P., Friederich, H., Eavis, A.J. and Atkinson, T.C. (1983)
- Willis, R. G., Boothroyd, C. and Briggs, N. (1984)
- Kottelat, M., Whitten, A.J., Kartikasari, S.N. and Wirjoatmodjo, S. (1993)
- Doi, A. (1997)
- Haryono, E. (2006)
- Kottelat, M. (2013)
- Nuryanto, A., Bhagawati, D., Nadjmi Abulias, M. and Indarmawan (2016)
- US Fish and Wildlife Service (2019)
- Iskandar, A., Muslim, M., Hendriana, A. and Wiyoto, W. (2020)
- Juriani, Susanto, G.N., Kanedi, M. and Suratman (2020)
- Natarina, D. and Sachari, A. (2021)
- Ng, C.K-C. and Tan, J. (2021)
- Tan, H.H. and Husana, D.E.M. (2021)
- Haryono, E., Adji, T.N., Cahyadi, A., Widyastuti, M., Listyaningsih, U. and Sulistyowati, E. (2022)
|Gunther, A.||Book||1868||Catalogue of fishes in the British Museum, Vol 7|
|Jacobson, E.||Journal Article||1912||Een paar bekende zeeschelpen en hunne onmiddellijke voorouders|
|Weber, M. and de Beaufort, M.L.||Book||1916||Indo-Australian fishes. Volume 3|
|Waltham, A.C., Smart, P., Friederich, H., Eavis, A.J. and Atkinson, T.C.||Journal Article||1983||The caves of Gunung Sewu, Java|
|Willis, R. G., Boothroyd, C. and Briggs, N.||Journal Article||1984||The caves of Gunung Sewu, Java|
|Kottelat, M., Whitten, A.J., Kartikasari, S.N. and Wirjoatmodjo, S.||Book||1993||Freshwater fishes of Western Indonesia and Sulawesi|
|Doi, A.||Journal Article||1997||A review of taxonomic studies of cypriniform fishes in Southeast Asia.|
|Haryono, E.||Journal Article||2006||Studi morfometri ikan wader goa (Puntius microps Gunther, 1868) yang unik dan dilindungi undang-undang|
|Kottelat, M.||Book||2013||The Fishes of the Inland Waters of Southeast Asia: A catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries|
|Nuryanto, A., Bhagawati, D., Nadjmi Abulias, M. and Indarmawan||Journal Article||2016||Ichtyofauna at Cijalu River, Cilacap regency central Java Province, Indonesia|
|US Fish and Wildlife Service||Report||2019||Barbodes microps (a fish, no common name) Ecological Risk Screening Summary|
|Iskandar, A., Muslim, M., Hendriana, A. and Wiyoto, W.||Journal Article||2020||Jenis-jenis ikan Indonesia yang kritis dan terancam punah|
|Juriani, Susanto, G.N., Kanedi, M. and Suratman||Journal Article||2020||The diversity of freshwater fish species in Way Sindalapai River, Liwa Botanical Garden, West Lampung|
|Natarina, D. and Sachari, A.||Journal Article||2021||Jomblang cave's contextual diversity in supporting adventure experience tourism as a sustainable creative economy|
|Ng, C.K-C. and Tan, J.||Journal Article||2021||Cryptic species and grey zone speciation of the Barbodes binotatus complex (Teleostei, Cyprinidae) in Sundaland|
|Tan, H.H. and Husana, D.E.M.||Journal Article||2021||Barbodes pyrpholeos, new species, the first cave-dwelling cyprinid fish in the Philippines, with redescription of B. montanoi (Teleostei: Cyprinidae)|
|Haryono, E., Adji, T.N., Cahyadi, A., Widyastuti, M., Listyaningsih, U. and Sulistyowati, E.||Book Section||2022||Groundwater and livelihood in Gunung Sewu karst area, Indonesia|