Ancilla brassica Maury, 1925 † (additional source)
Ancilla caroniana Maury, 1925 † (basis of record)
Ancilla caroniana springvalensis Mansfield, 1925 † (original description)
Ancilla lamellata (Guppy, 1866) † (basis of record)
Ancilla paralamellata Mansfield, 1925 † (original description)
Cancellaria bullbrooki Mansfield, 1925 † (original description)
Cancellaria springvaleensis Mansfield, 1925 † (original description)
Conus manzanillaensis Mansfield, 1925 † (original description)
Conus springvaleensis Mansfield, 1925 † (original description)
Conus trinitatensis Mansfield, 1925 † (original description)
Cylichnella ovumlacerti (Guppy, 1867) † (basis of record)
Drillia daditrina Mansfield, 1925 † (original description)
Drillia inadrina Mansfield, 1925 † (original description)
Drillia inniadda Mansfield, 1925 † (original description)
Drillia manzanillaensis Mansfield, 1925 † (original description)
Drillia nitrina Mansfield, 1925 † (original description)
Drillia pennyi Mansfield, 1925 † (original description)
Drillia pennyi acaria Mansfield, 1925 † (original description)
Drillia tridadina Mansfield, 1925 † (original description)
Glyphostoma addrina Mansfield, 1925 † (original description)
Glyphostoma caronensis Mansfield, 1925 † (original description)
Glyphostoma triniada Mansfield, 1925 † (original description)
Marginella calypsonis Maury, 1925 † (additional source)
Marginella guaica Maury, 1925 † (additional source)
Marginella guppyana Mansfield, 1925 † (original description)
Marginella solitaria montserratensis Mansfield, 1925 † (original description)
Marginella springvalensis Maury, 1925 † (additional source)
Metulella caronensis Mansfield, 1925 † (original description)
Microdrillia propetrina Mansfield, 1925 † (original description)
Microdrillia trina Mansfield, 1925 (original description)
Phos bullbrooki Mansfield, 1925 † (original description)
Phos trinitatensis Mansfield, 1925 † (original description)
Pseudoliva guppyi Mansfield, 1925 † (original description)
Strombina walli Mansfield, 1925 † (original description)
Turris brassoensis Mansfield, 1925 † (original description)
Typhis sawkinsi Mansfield, 1925 † (original description)
Vexillum bristoli (Maury, 1925) † (basis of record)