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Opisthostoma mirabile Smith, 1893
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Opisthostoma decrespignyi (Adams)
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Opisthostoma everettii Smith, 1893
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Opisthostoma mirabile Smith, 1893
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Opisthostoma decrespignyi Adam, 1865
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Opisthostoma everetti Smith, 1893
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Opisthostoma mirabile Smith, 1893
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Opisthostoma decrespignyi (Adams)
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Opisthostoma everetti Smith, 1893
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Opisthostoma decrespignyi Adam, 1865
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Opisthostoma obtusum Van Benthem Jutting, 1952
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Opisthostoma otostoma Boettger, 1893
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Figure 13; A Opisthostoma fallax van Benthem Jutting, 1961 BOR/MOL 9755. Perak, Ipoh, Batu Kebelah Plot 4 B Opisthostoma gittenbergeri Vermeulen & Clements, 2008 BOR/MOL 10452. Perak, Ipoh, Gunung Datok C Opisthostoma ‘Kanthan 1’ BOR/MOL 9182. Perak, Ipoh, Gunung Kanthan Plot 3 D Opisthostoma megalomphalum van Benthem Jutting, 1952 BOR/MOL 10271. Perak, Ipoh, Gunung Rapat Plot C7 E Opisthostoma ‘mykarst-025 1’ BOR/MOL 12506. Perak, Ipoh, Mykarst-025 Plot 4.
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Opisthostoma linterae Sowerby, 1896
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Figure 12; A Opisthostoma castor van Benthem Jutting, 1952 BOR/MOL 10115. Perak, Ipoh, Gua Tok Giring Plot 1 B Opisthostoma cf. gittenbergeri BOR/MOL 9151. Perak, Ipoh, Gunung Kanthan Plot 4 C Opisthostoma cf. subconicum BOR/MOL 9183. Perak, Ipoh, Gunung Kanthan Plot 4 D Opisthostoma cf. vermiculum BOR/MOL 11400. Perak, Ipoh, Gunung Tempurung Plot 2.
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Figure 14; A Opisthostoma paulucciae ((Crosse and Nevill, in Crosse, 1879b)) BOR/MOL 9019. Perak, Ipoh, Gunung Kanthan B Opisthostoma ‘tempurung 1 detached’ BOR/MOL 12504. Perak, Ipoh, Gunung Tempurung Plot 4 C Opisthostoma trapezium van Benthem Jutting, 1952 BOR/MOL 9035. Perak, Ipoh, Gunung Kanthan D Opisthostoma vermiculum Clements and Vermeulen, in Clements et al., 2008 BOR/MOL 10242. Perak, Ipoh, Gunung Rapat.
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Opisthostoma linterae Sowerby, 1896
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Opisthostoma picsingense Smith, 1905
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Opisthostoma obtusum Van Benthem Jutting, 1952
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Opisthostoma smithi Fulton, 1901
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Opisthostoma michaelis Van Benthem Jutting
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Opisthostoma smithi Fulton, 1901
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Opisthostoma michaelis Van Benthem Jutting
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Opisthostoma grandispinosum G. Austen, 1889
