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The ALFALFA (Arecibo Legacy Fast ALFA) blind survey is providing a census ofHI in galaxies of all types in a range of environments. Here we report onALFALFA results for Virgo Cluster early-type dwarfs between declinations of 4and 16 degrees. Less than 2% of the Virgo early-type dwarf population isdetected, compared to 70-80% of the Im/BCD dwarf population. Most of the dwarfsdetected in HI show evidence for ongoing or recent star formation. Early-typegalaxies with HI tend to be located in the outer regions of the cluster and tobe brighter. Early-type dwarfs with HI may be undergoing morphologicaltransition due to cluster environmental effects.

ALFALFA HI Content and Star Formation in Virgo Cluster Early-Type Dwarfs