Size:
Opisthostoma (Plectostoma) laemodes from Batu Tai Gadjah – “Dimensions: Height 2.4-2.5, Breadth 2.4-2.5, Diam. apert. 1.0 mm.” (Benthem-Jutting, 1961); Opisthostoma (Plectostoma) laemodes from Ulu Kenyam Kechil – “Dimensions: Height 2.6-3.0, Breadth 2.6-2.7, Diam. apert. 0.9-1.0 mm.” (Benthem-Jutting, 1961); Opisthostoma (Plectostoma) laemodes from Batu Che Derani – “Dimensions: Height 2.6-2.8, Breadth 2.6-2.7, Diam. apert. 1.0-1.1 mm.” (Benthem-Jutting, 1961)
Taxonomic name: