Maybe someday Microsoft releases some kind of Taxonomic spelling corrector,
but in the meanwhile, I have come over a bunch of alternative name
transcriptions, most of them probably erratas or typos. If somebody could
help me to choose the correct one, it would be very acnowledged. Thanks in
advance.

The troubles are:

metcalfei or metcalfi ? (Marginella)
crescera or crescere ? (Marginella)
baylei or baylii ? (Balanetta)
largillieri or largillierti ? (Bullata)
matthewsi or mathewsi ? (Bullata)
mancelli or manceli ? (Closia)
dianae or diana ? (Dentimargo)
lantzii or lantzi ? (Dentimargo)
smithii or smithi ? (Dentimargo)
teramachii or teramachi ? (Dentimargo)
walkieri or walkeri ? (Dentimargo)
hematita or haematita ? (Marginella)
spinacia or spinacea ? (Marginella)
schoutanica or shoutanica ? (Mesoginella)
pattersoni or pattisoni ? (Mesoginella)
baudensis or baudinensis (Protoginella)
dawabrinkae or dawnbrinkae ? (Prunum)
redfieldi or redfieldii ? (Prunum)
walvisianum or walvisanum ? (Prunum)
panchia or pachia ? (Triginella)
agatha or agata ? (Volvarina)
coelata or caelata ? (Volvarina)
pauli or paula ? (Volvarina)