Transcriptome profiling of whole proboscis and body wall of the marine Polychaeta Eulalia sp. (Eulalia viridis), adults, wild population (sex undiscriminated), collected from the rocky intertidal at W Portugal (2018). Overall design: Three individuals (independent replicates) were analysed (either organ). Total RNA from Replicate 2 (EPR2 and EBW2) was used to build the main library. The target organ is the proboscis (eversible pharynx) were toxn-secreting cells as located. Body wall (skin plus body musculature) was included as reference to allow the detection the expression of putative toxins.