General description:
To be added
Conservation status:
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Diagnostic description:
To be added
Morphology:
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Taxon biology:
From a conchological point of view, this species is related to Plectostoma charasense. Both are thought to be affiliated with the Plectostoma species from North Borneo. Plectostoma tohchinyawihas a high conical spire, thick and projected radial ribs, and a long detached tuba. These are the typical characteristics for dozens of Plectostoma species in North Borneo. In addition, Plectostomatohchinyawi and Plectostoma charasense live on the five lenticular limestone outcrops that are the easternmost outcrops of the Malay Peninsula, thus closest geographically to Borneo (Figure 18B).
Distribution:
To be added