  The location of two nearby galaxy groups within ~20 Mpc in the Leo region
allows for a detailed study of low-mass galaxies. A catalog of HI line
detections in Leo (9h36m < RA <11h36m, +8deg < dec < +16deg) has been made from
the blind HI survey ALFALFA. More sensitive single-pixel Arecibo observations
targeted Leo dwarf candidates noted optically by Karachentsev et al 2004 (K04)
to determine group members and allow for a comparison of HI and
optically-selected samples. This presentation highlights the differences
between the two samples and the significant contribution blind HI surveys can
make to the missing satellites problem.
