Guide to the aquatic Heteroptera of Singapore and Peninsular Malaysia. IX. Infraorder Nepomorpha, families Ochteridae and Gelastocoridae
Guide to the aquatic Heteroptera of Singapore and Peninsular Malaysia. VIII. Leptopodomorpha, families Saldidae, Leptopodidae, and Omaniidae
Review of Microcoryphia fauna from Vietnam, with new subgenus, new species of Machilontus Silvestri (Machiloidea: Meinertellidae), and new data for sexual dimorphism in the order
Tylopus millipedes in Vietnam (Diplopoda: Polydesmida: Paradoxosomatidae: Sulciferini), with descriptions of five new species
Taxonomic revision of Dyakia janus from Peninsular Malaysia (Pulmonata: Dyakiidae), with notes on other sinistrally coiled helicarionoidsq
A new species of semi-aquatic freshwater earthworm of the genus Glyphidrilus Horst, 1889 from the Mekong River (Oligochaeta: Almidae)