Larvae of the tubeworm, Hydroides elegans, metamorphose in response to surface-bound bacteria. One bacterial factor known to induce tubeworm metamorphosis is an ordered assembly of phage tail-like structures known as a Metamorphosis Associated Contractile (MAC) arrays produced by the bacterium, Pseudoalteromonas luteoviolacea. To develop H. elegans as a model organism, we sequenced its genome and performed RNA-sequencing on five stages of development, including stages before and soon after the stimulation of metamorphosis by MACs.