Slide showing diagram of a 'Polynoe Squamata.' Slide shows diagram of a 'Polynoe Squamata.' Diagram is labelled 'f', 'c','e','p','t'. Corresponding key reads as follows: 'Fig. 16. - Polynoe Squamata L. Nat. size. c, Notopodial cirrus; e, elytron; f, parapodium; p, palp; t, tentacle.' Late 19th to early 20th century