A new marine diatom (Bacillariophyceae) species – Halamphora lombokensis sp. nov. and the first observation for H. banzuensis from Kuta Beach Lombok, West Nusa Tenggara, Indonesia

This paper describes a new species of Halamphora - <i>Halamphoralombokensis</i> <b>sp. nov.</b> and records for the first time <i>Halamphorabanzuensis</i> for the coasts of Indonesia. The study utilized light and scanning electron microscopy to meticulously examine the morphology. These species were found at Kuta Beach on the island of Lombok in Indonesia in highly saline sandy environments. The newly identified species, <i>H.lombokensis</i> <b>sp. nov.</b>, is characterized by its semi-lanceolate to narrowly semi-elliptic shape with a straight ventral and convex dorsal margin. The study contributes to our understanding of marine diatom flora in Indonesia's coastal regions.