New records of freshwater mussels (Unionida, Unionidae and Mycetopodidae) from rivers, lakes, and lagoons in Honduras 

Freshwater mussels were surveyed in 32 sites across rivers, lakes, and lagoons in Honduras and five species (two Unionidae and three Mycetopodidae) confirmed. Anodontites tortilis and Mycetopoda subsinuata are reported for the first time from the country. Mussel distributions were patchy, with Caribbean drainages harboring only Nephronaias hjalmarsoni , while up to four species co-occurred in Pacific drainages. Phylogenetic analyses revealed polyphyly in Nephronaias and Anodontites , highlighting unresolved taxonomy. These results provide critical baseline data on species diversity, distributions, and conservation priorities for Honduras’ understudied freshwater mussel fauna.