Lectotypes of type species of Agglutinated Foraminiferal Genera in the Collections of the Natural History Museum, London. Part 1. Astrorhizina and Saccamminina

We herein designate lectotypes for the type species of five genera belonging to the order Astrorhizina and seven genera of the suborder Saccamminina that are housed in the micropalaeontological collections of the Natural History Museum, London. These are the astrorhizids Diffusilina, Marsipella, Psammatodendron, Rhabdamminella, Sagenina and the saccamminids Aggerostramen, Sorosphaera, Cribrothalammina, Saccammina, Iridia, Masonella, and Pilulina. We also report on the status of type specimens (lectotypes and syntypes) of the type species of Halyphysema, Rhabdammina, Hippocrepinella, Schizammina, Technitella, Discobotellina and Thurammina and newly discovered syntypes of the type species of Thuramminopsis housed in the NHM collections.