Bigelow, H.B. & Schroeder, W.C. (1962)
New and little known batoid fishes from the Western Atlantic.
Bulletin of the Museum of Comparative Zoology at Harvard College, 128(4), 161–244
Bigelow, H.B. & Schroeder, W.C. (1965)
A further account of batoid fishes from the western Atlantic.
Bulletin of the Museum of Comparative Zoology at Harvard College, 132(5), 443–477