. Bulletin of the British Museum (Natural History) Zoology. 202 R. A. TRAVERS. Fig. 24 Misgurnus anguillicaudatus, lateral views (32-69 mm SL; BMNH : 1246-1285). specimens of the species included by Berg in his Deuterophysa ( Noemacheilus strauchi, or ) and their relationships to those distinct Noemacheilus lineages tentatively proposed by Sawada (1982: 193, fig. 99) must await future analyses. Noemacheilus strauchi (Kessler, 1874) Fig. 22 Material. RS 2, : 1169-1170 (26-30 mm); RS 3-4, : 1171-1178 (45-54 mm); RS 3-4, : 1179- 1187 (4


. Bulletin of the British Museum (Natural History) Zoology. 202 R. A. TRAVERS. Fig. 24 Misgurnus anguillicaudatus, lateral views (32-69 mm SL; BMNH : 1246-1285). specimens of the species included by Berg in his Deuterophysa ( Noemacheilus strauchi, or ) and their relationships to those distinct Noemacheilus lineages tentatively proposed by Sawada (1982: 193, fig. 99) must await future analyses. Noemacheilus strauchi (Kessler, 1874) Fig. 22 Material. RS 2, : 1169-1170 (26-30 mm); RS 3-4, : 1171-1178 (45-54 mm); RS 3-4, : 1179- 1187 (43-64 mm); RS 3-4, : 1188-1197 (39-51 mm); RS 3-4,: 1198-1208 (47-66 mm). Total 40 specimens. Variation. Lie within the range of the descriptions given by Berg (1948: 412), Holcfk & Pivnicka (1969: 12, figs. 4-7) and Shatunovskii (1983: 210). No specimens were found with a body length exceeding 70 mm. The large sizes recorded by Berg (1948: 412, for specimens from Malyi Saryehegan, Bay of Balkash) were not encountered during this survey. Geographical range. Holcfk & Pivnicka (1969) were first to discover this species in Mongolia and recorded it from '... the salt Sangin-dalai lake and Teisingol river'. This locality was also given by Shatunovskii (1983: 210). These isolated water bodies lie within the northern region of the west Mongolian Great Lakes Valley (see p. 179) of the Internal or Central Asian basin. The specimens listed above are the first of this species to be recorded from the Gobi Valley region of the Central Asian basin. Their presence adds support to the faunal uniformity of this zoogeographical province. Ecological notes. Noemacheilus strauchi was caught in the Tsagaan Gol and tributaries, before this freshwater stream entered the endorheic waters of Boon Tsagaan Nuur; no specimens were caught or observed in the lake waters. It is geographically isolated from the other member of this genus found in Mongolia ( toni) which


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