Collin, R. 2004. Development of <i>Cerithiopsis gemmulosum</i> from Bocas del Toro, Panama. Caribbean Journal of Science. 40 (2): 192-197.

Collin, R. 2004. Phylogenetic effects, the loss of complex characters, and the evolution of development in calyptraeid gastropods. Evolution. 58 (7): 1488-1502.

Chaparro, O. R., C. L. Saldivia, S. V. Pereda, C. J. Segura, Y. A. Montiel and R. Collin. 2005. The reproductive cycle and development of <i>Crepipatella fecunda</i> (Gastropoda: Calyptraeidae) from sourthern Chile. Journal of the Marine Biological Association of the United Kingdom. 85: 157-161.

Collin, R. 2005. Development, phylogeny, and taxonomy of <i>Bostrycapulus</i> (Caenogastropoda: Calyptraeidae), an ancient cryptic radiation. Zoological Journal of the Linnean Society. 144: 75-101.

Kerr, K.A., A. Cornejo, F. Guichard, A. C. Crespi-Abril and R. Collin. 2015. Planktonic predation risk varies with life history stage. Journal of Plankton Research. doi: 10.1093/plankt/fbv006

Kopf, A. et al. 2015. Ocean Sampling Day Consortium. Giga Science. 4:27. DOI: 10.1186/s13742-015-0066-5

Collin, R., M. McLellan, K. Gruber, and C. Bailey-Jourdain. 2005.
Effects of conspecific associations on size at sex change in three
species of calyptraeid gastropods. Marine Ecology Progress Series
293: 89-97.

Collin, R. 2005. Ecological monitoring and biodiversity surveys at the Smithsonian Tropical Research Institute's Bocas Del Toro Research Station. Caribbean Journal of Science. 41(3): 367-373.

Collin, R. M. C. Diaz, J. Norenburg, R. M. Rocha, J. A. Sanchez, A. Schulze, M. Schwartz, and A. Valdes 2005. Photographic Identification guide to some common invertebrates of Bocas del Toro, Panama. Caribbean Journal of Science. 41(3): 638-707.

Voltzow, J. and R. Collin. 1995. Flow through mantle cavities revisited: Was sanitation key to fissurellid evolution? Invertebrate Biology. 114 (2): 145-151.