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The identity of Barbus johorensis Duncker, 1904 (Teleostei: Cyprinidae).

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RAFFLES BULLETIN OF ZOOLOGY 1992 40(2)
Fig. I. Puntiusjohorensis, ZMH H 371,lectotype, 25.8 mm SL.
a
Fig.
2. Simple dorsal rays of: a, Puntius johorensis, CMK 8163, 31.7 mm SL; b, P. hexazona, CMK
S162, 24.7 mm SL. Tracing from radiographs. Scale bar 1 mm.
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... Taki et al. (1978), based on colour pattern, divided the 23 species of Southeast Asian cyprinids they studied into seven groups. Two groups of tiger barbs as fi rst recognised by Kottelat (1992), the subspecies proposed by Alfred (1963) are recognised as full species by Kottelat (1992) and followed herein. Group 1 possesses a deep rhomboidal, usually yellow body with intense black bars and a complete or incomplete lateral line, occurring in swamps, streams, and along river margins. ...
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A deep-bodied tiger barb with broad black bars is described from hill stream habitats in the headwaters of the Katingan River in Central Kalimantan, Borneo. Systomus navjotsodhii differs from other tiger barbs in having four complete broad black bars and the deepest body (body depth at dorsal-fi n origin 53.6–59.2 % SL). The species is named in memory of Navjot Sodhi.
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The striped Puntius consisting of four species, these are P. johorensis, P. gemellus, P. trifasciatus, and P. lineatus. This group marked by longitudinal stripe on body, and these varieties. The three species first of them have four long barbells, originally describe by Puntius eugrammus, and the last species has barbells 0-2 (short when present). The strange species was described from Central Mahakam areas, East Kalimantan. It’s named by Puntius sp., predicted new species but specifically study is needed. This species differ from its congener by the half stripe (+1) above the midlateral stripe on the anterior half of the body.
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Two hundred and twelve fish species are recorded from the Kapuas Lakes Area (western Borneo). One hundred and forty six species are definitively recorded from within Danau Sentarum National Park (DSNP) boundaries; 43 (29 %) of them have been recorded for the first time during the present survey. Eleven species new to science have been discovered and nine additional species are either new or require further study before their identity can be cleared. Taxonomy of Chitala, Scleropages and Parachela are briefly discussed. The published data do not justify recognising more than one Southeast Asian species of Scleropages. Macrognathus tapirus is proposed as a new replacement name for Mastacembelus paucispinis Fowler, 1939. A neotype is designated for Ophidium aculeatum Bloch. A large number of fish species migrate upriver to headwaters or downriver to the Kapuas main river at some time of the year; in addition there are lateral movements between the rivers and lakes and the flooded forest during the wet season.
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The tropical Asian cyprinid genus Puntius, which contains some 120 valid species, has long been suspected to be polyphyletic. Here, through an examination of external morphology, osteology, and analysis of 16S ribosomal RNA and cytochrome b gene fragments from 31 South Asian species hitherto referred to Puntius, we show that these fishes represent at least five lineages recognisable as genera. Puntius sensu stricto has the rostral barbels absent; last unbranched dorsal-fin ray weak or strong, smooth; and lateral line complete, with 22-28 pored scales. Systomus possesses maxillary and rostral barbels; last unbranched dorsal-fin ray stiff (‘osseous’), serrated; and lateral line complete, with 27-34 scales. Three new genera are proposed: Dawkinsia (type species Leuciscus filamentosus) is distinguished by lacking rostral barbels; having the last unbranched dorsal-fin ray smooth; lateral line complete, with 18-22 scales; and a juvenile colour pattern that includes three black bars on the body. Dravidia (type species Cirrhinus fasciatus) is distinguished by having both rostral and maxillary barbels present; lateral line complete, with 18–26 pored scales; dorsal fin with 4 unbranched and 8 branched rays, last unbranched dorsal-fin ray smooth; infraorbital 3 deep, partly overlapping the preoperculum; and free uroneural and postepiphysial fontanelle absent. Pethia (type species Barbus nigrofasciatus) is distinguished by having the last unbranched dorsal-fin ray stiff, serrated; infraorbital 3 deep, partially overlapping preoperculum; rostral barbels absent; maxillary barbels absent or minute; a black blotch on the caudal peduncle; and frequently, black blotches, spots or bars on the side of the body. The identities of Puntius sophore and Systomus immaculatus are clarified through the designation of neotypes; a lectotype is designated for Neolissochilus bovanicus; and precedence is given to the spelling bovanicus over bovianicus.
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One of the most extreme freshwater habitats in Peninsular Malaysia is the peat swamp forest, with dark-coloured and highly acidic waters. Surprisingly, little is known about blackwater fishes in Peninsular Malaysia. Until 1968, only 26 fish species were known from blackwaters throughout Peninsular Malaysia, of which only one can be regarded as stenotopic. A recent intensive survey of part of the North Selangor peat swamp forest yielded 47 species, of which 14 are probably stenotopic taxa. These include four undescribed species and several new records for western Peninsular Malaysia. These discoveries are significant in that they include the family Chaudhuriidae which until 1985, was not reported from Sundaic Southeast Asia, and the rare genus Encheloclarias which had not been encountered for over 50 years. The rapid rate of destruction of the peat swamp forest owing to development, forestry and agricultural activities must be halted or slowed significantly to enable the proper zoological surveys and studies to be conducted. Conservation plans and environmental impact assessments based on inadequate sampling and knowledge of species present is acutely dangerous. There are no longer substantial undisturbed blackwater peat swamp forests left in most of Peninsular Malaysia. Conservation of the remaining blackwater biotopes is critically important if extinction of many species, here regarded as economically valuable renewable resources, is to be prevented.
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