A type of spiral galaxy with characteristics intermediate between gas-rich star-forming spirals and gas-poor lenticular galaxies. They are seen most frequently in rich clusters of galaxies. Examples are NGC 4941 and 4866 in the Virgo Cluster, and NGC 4921 in the Coma Cluster. An alternative name is ‘red spirals’ from their lack of significant current star formation, which leaves the long-lived red dwarfs as their main component.