This issue of BioInvasions Records includes 20 rapid communications and research articles...

First overview of animal invasions in Armenia, with a comprehensive list of the documented invasive animal species. This list includes their range in the country and the introduction pathway.

Update of the distribution and status of Arctotheca calendula (L.) Levyns (Asteraceae, Cichorioideae) in continental North Africa (Algeria and Tunisia).

Identification of the habitat status, host plants, and ecological characteristics of Melanoplus differentialis, a pest native to the Americas, in South Korea.

New distributions of invasive and cryptogenic Vespidae in the Galapagos Islands.

Up-to-date distribution and expansion of the invasive brown anole lizard (Anolis sagrei) in continental Ecuador, from 2015 to 2023 taking in account sampling data and iNaturalist observations.

Morphological and molecular analyses showed the misidentification of several Pseudopolydora specimens in the French coast. According to the samples examined, P. kempi ssp. japonica has been present in European waters since 2004.

A rapid assessment in Tunisian marinas detected a total of twenty NIS and cryptogenic species with six new records in Tunisia.

Morphological and molecular analyses confirmed the presence of the Pacific oyster Crassostrea gigas in El Vizcaino Biosphere Reserve, Mexico.

A well-established population of Parathelphusa convexa, a freshwater crab species with negative impacts on rice crops, in Sumatra (Indonesia).

Use of morphology DNA barcoding to differentiate Carassius species in Canada, with some insights about their entry pathway.

An assessment on fecundity, growth, and body condition of black bullhead, Ameiurus melas, in Hungary confirms its phenotypic plasticity out of its native range.

And, several new records worldwide: first European record of Sagina maxima in Italy, three exotic termite species in Belgium, first morphologically and genetically confirmed observation of the brown seaweed Rugulopteryx okamurae in Italy, first report on the presence and structure of the Mytilopsis sallei population in Indonesia, first record of Palaemon macrodactylus in Iranian waters of the Caspian Sea, first record of Misgurnus anguillicaudatus and Misgurnus dabryanus in France, northward range expansion of the threadfin shad (Dorosoma petenense) in the Delaware River (US), and the vermiculated sailfin catfish Pterygoplichthys disjunctivus is recorded for the first time in Nepal.

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