Peinaleopolynoe santacatalina specimens A SIO-BIC A8487, live dorsal view B Peinaleopolynoe santacatalina observed on the Rosebud Whalefall off the coast of San Diego, CA C SIO-BIC A8489, live dorsal view without elytra. Numbers next to the elytrophores indicate the pairs of elytra (ten total) D SIO-BIC A10927, live ventral view. Arrows indicate the four pairs of papillae on segments 12–15. Abbreviations: el, elytrophore; br, single large group of branchiae on elytrigerous segment; br1, branchiae small group 1 attached to dorsal tubercle on cirrigerous segment; br2, branchiae large group 2 attached near base of notopodium on cirrigerous segment. Scale bars: 5 mm (A, C, D); 10 mm (B).

 
 
  Part of: Hatch AS, Liew H, Hourdez S, Rouse GW (2020) Hungry scale worms: Phylogenetics of Peinaleopolynoe (Polynoidae, Annelida), with four new species. ZooKeys 932: 27-74. https://doi.org/10.3897/zookeys.932.48532