Chapter 1, pages 1–17 in Marine Geophysics by E.J.W. Jones.
Pages 331–345 in Weatherall, P., Marks, K. M., Jakobsson, M., Schmitt, T., Tani, S., Arndt, J. E., Rovere, M., Chayes, D., Ferrini, V., and Wigley, R., 2015, A new digital bathymetric model of the world's oceans: Earth and Space Science, v. 2, no. 8, p. 331–345.
Guidelines and nomenclature of undersea feature names are contained in IHO-IOC Publication B-6 "Standardisation of Undersea Feature Names". This may be downloaded from GEBCOs web:
http://www.gebco.net/data_and_products/undersea_feature_names/
The document may serve as your future reference for how undersea features are defined and properly named. The section of specific interest begins at page 2–10 “UNDERSEA FEATURE TERMS AND DEFINITIONS” which define all major undersea features.