Garman, S. (1911)
The Chismopnea (Chimaeroids).
Memoirs of the Museum of Comparative Zoology at Harvard College, 40(3), 81–101
Leigh-Sharpe, W.H. (1922)
The comparative morphology of the secondary sexual characters of elasmobranch fishes. Memoir III, IV, V
Journal of Morphology, 36, 191–243