The historical records of the genus Marchantia in Singapore are reviewed. A recent collection and identification of historical unidentified herbarium specimens reveal two distinct native species occurring in Singapore, namely Marchantia acaulis Stephani and Marchantia emarginata Reinw., Blume & Nees. Unintentional destruction and extermination threatens the one surviving population of each of the two Marchantia species. Conservation efforts by the authorities are called upon to prevent the local extinction of both species.

The “bullseye” or “cobra” snakehead is a large, predatory freshwater fish of South Asian origin. Until recently, only one bullseye species has been recognised, Channa marulius, but new studies on the ‘Marulius group’ have revealed that there are at least four species with different native ranges in rivers of mainland South Asia, as well as Channa marulioides (the “emperor snakehead”) from Sundaland. New data, generated as part of this wider taxonomic investigation and reported here for the first time, reveal that Marulius group specimens collected in the Mae Khlong Basin of Western Thailand are similar genetically and in appearance to the recently revalidated Channa aurolineata, that occurs in Myanmar’s Salween, Sittang and Ayeyarwady River Basins. Thus, the Mae Klong bullseye snakehead should now rightly be referred to by the scientific name C. aurolineata. Furthermore, C. aurolineata from western Thailand are a direct DNA barcode match to publicly available data for the feral bullseye snakehead population in Florida, North America. This identifies the Mae Khlong Basin as the probable source for the feral population in Florida. Identifying Thailand as the likely origin for the feral North American population.