ABSTRACT.—Forty-six new records of marine fishes to the Puerto Rican Plateau are reported here with
notes on their habitat and life history. The lack of previous reports of many of these species is due to three
main reasons: poorly sampled habitats, improved taxonomy, and being a part of a waif fauna. Twenty-one
taxa are reported from previously inadequately sampled deep water (>20 m) habitats. Twelve additional
species are reported from shallow water in poorly sampled habitats, such as mangroves, soft bottom, or rocky
shores. Revision in taxonomy and careful examination revealed seven taxa that are taxonomically distinct
from forms previously reported from the area. Finally six rare forms may comprise a waif fauna that infrequently
colonizes the region.