Three new Licmophora species (Bacillariophyta: Fragilariophyceae) from Guam, two with an axial wave in the valve

Background Diatoms in genus Licmophora are found as epiphytes on marine shores and are members of fouling communities. They can be abundant on natural coral reef substrates such as filamentous algae and as fringes on Halimeda. Biodiversity of benthic tropical diatoms is generally poorly known. Several new species of Licmophora have been reported from Guam but many are still undescribed.