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Ultra-diffuse galaxies have generated significant interest due to their largeoptical extents and low optical surface brightnesses, which challenge galaxyformation models. Here we present resolved synthesis observations of 12HI-bearing ultra-diffuse galaxies (HUDs) from the Karl G. Jansky Very LargeArray (VLA), as well as deep optical imaging from the WIYN 3.5-meter telescopeat Kitt Peak National Observatory. We present the data processing and images,including total intensity HI maps and HI velocity fields. The HUDs show orderedgas distributions and evidence of rotation, important prerequisites for thedetailed kinematic models in Mancera Pi\~na et al. (2019b). We compare the HIand stellar alignment and extent, and find the HI extends beyond the alreadyextended stellar component and that the HI disk is often misaligned withrespect to the stellar one, emphasizing the importance of caution whenapproaching inclination measurements for these extreme sources. We explore theHI mass-diameter scaling relation, and find that although the HUDs have diffusestellar populations, they fall along the relation, with typical global HIsurface densities. This resolved sample forms an important basis for moredetailed study of the HI distribution in this extreme extragalactic population.

VLA Imaging of HI-bearing Ultra-Diffuse Galaxies from the ALFALFA Survey