HI observations of galaxies in between the Local and the Hydra/Centaurus superclusters.

H I observations obtained with the 300-ft NRAO and 100-m Effelsberg radio telescopes in 1984-1985 are reported for 440 galaxies, of morphological types S0/a or later and diameter at least 2 arcmin in the catalog of de Vaucouleurs et al., 1976, from the region between the Local and Hya/Cen superclusters. The data are compiled in tables along with published data on 310 galaxies to form a data base for studies of filamentary structures in the intercluster region. More than 50 percent of the galaxies are detected in H I, and the redshift distribution is found to be consistent with the existence of filaments.