Caetano, C. H. S., Scarabino, V., & Absalão, R. S. (2006).

Scaphopoda (Mollusca) from the Brazilian continental shelf and upper slope (13º to 21ºS) with descriptions of two new species of the genus Cadulus Philippi, 1844

. Zootaxa, 1267(1), 1–47. https://doi.org/10.11646/zootaxa.1267.1.1