Blanchard, Emile. (1849). Fauna Chilena. Anulares. IN: Gay, Claudio (Ed.). Historia fisica y politica de Chile. Segun documentos adquiridos en esta republica durante doce anos de residencia en alla. [Book, 8 volumes]. Volume 3 Zoologia, 5-52, & 3 Atlas plates, Paris.
World Polychaeta Database (WPolyDb). There are 2 digitizations at BHL, one is complete with plates atlas and better labelled than the other. Blanchard is not overtly named as author of the annelids text, but he is indicated as author of the species names in the plates. Plates were published later in 1854