The oceanic crabs of the genera DOI: info:10.5479/si.00963801.101-3272.65v. 101No. 327265–103, figures 1-8
Chace, Fenner Albert, Jr. 1951. "The oceanic crabs of the genera Planes and Pachygrapsus." Proceedings of the United States National Museum, 101, (3272) 65–103, figures 1-8. https://doi.org/10.5479/si.00963801.101-3272.65.