You have requested access to download the full text of the source (SourceID: 51079):
Monro, Charles Carmichael Arthur. (1933). The Polychaeta Errantia collected by Dr. C. Crossland at Colón, in the Panama region, and the Galapagos Islands during the Expedition of the S.Y. 'St. George'. Proceedings of the Zoological Society of London. 103(1): 1-96.