Some cold-blooded vertebrates of the Florida Keys. Proceedings of the Academy of Natural Sciences of Philadelphia, 58: 77–113, 2 pis.
The Plagiostomia (Sharks, Skates and Rays). Memoirs of the Museum of Comparative Zoology at Harvard College, 36: 528 p., 77 pl.
The sharks and rays of Beaufort, North Carolina. Bulletin of the United States Bureau of Fisheries, 34: 239–284