Three genera of small, attached, agglutinated foraminifers are studied under the scanning electron microscope. The genera Asterotrochammina and Rotaliammina are redescribed. A new species, Rotaliammina trumbulli, is described. Two and possibly three different groups of the now known species of Rotaliammina are recognized. Remaneica gonzalezi is redescribed. These three genera are included in the subfamily Remaneicinae.