gen. nov., a new Asian lineage of marpissine jumping spiders (Araneae, Salticidae, Marpissina).

The genus Maddison & Ruiz, , is described for a lineage of bark-dwelling Asian marpissine jumping spiders that represent a dispersal to Eurasia separate from that of the - lineage, according to the phylogeny recovered from analysis of four gene regions. All species of are new to science except (Simon, 1901), , which is transferred from Simon, 1901. is known from Hong Kong, Guangdong, Guangxi, and likely Taiwan.

A phylogenetic and taxonomic review of baviine jumping spiders (Araneae, Salticidae, Baviini).

The systematics and taxonomy of the tropical Asian jumping spiders of the tribe Baviini is reviewed, with a molecular phylogenetic study (UCE sequence capture, traditional Sanger sequencing) guiding a reclassification of the group's genera. The well-studied members of the group are placed into six genera: Simon, 1877, Caleb & Sankaran, 2019, Simon, 1901, Thorell, 1895, Simon, 1885, and one new genus, Maddison, The identity of is clarified, and Kanesharatnam & Benjamin, 2018 synonymized with it. Strand, 1911 is synonymized with .

Geosesarma spectrum, a new species of semiterrestrial vampire crab (Crustacea: Decapoda: Brachyura: Sesarmidae) from Brunei Darussalam, Borneo.

A new semiterrestrial vampire crab from the family Sesarmidae, Geosesarma spectrum n. sp., is described from Brunei Darussalam (Borneo).

The freshwater crabs of Danum Valley Conservation Area in Sabah, East Malaysia, with a description of a new species of Bott, 1969 (Crustacea, Brachyura, Gecarcinucidae, Potamidae, Sesarmidae).

Seven species of freshwater crabs from three families are recorded from and around the Danum Valley Conservation Area in Sabah, Malaysian Borneo: , Ng & Stuebing, 1990, Ng, 1991, Ng & Tan, 2015, Ng & Goh, 1987 (new record) (Gecarcinucidae); Ng & Tan, 1998 (Potamidae); and Ng, 2002 (Sesarmidae). The new species of Bott, 1979, can be distinguished from all congeners by a unique combination of morphological features, most notably the presence of dense patches of short setae on the fingers of the adult male chelipeds, as well as the structure of the male first gonopod. is confirmed to be a phytotelm species.