Wilkingia terminale vs Wilkingia terminalis

[DPS Ammonite]

What is the proper ending for the specific name of Wilkingia terminale: terminale or terminalis? Allorisma was renamed Wilkingia in 1959 by Wilson. I suspect since the genus name was changed the ending of the specific name needed to change to match the case, gender and number of the genus name. Anyone fluent in Latin and good at matching their word endings? 

http://fossilworks.org/bridge.pl?a=taxonInfo&taxon_no=18845

 

http://entomology.ifas.ufl.edu/frank/KISS/kiss9.htm

 

 

 

[TqB]

I'm by no means fluent but (according to Roland Wilbur Brown's "Composition of scientific words"), a Latin nominative adjective ending -is can be masculine or feminine and -e neuter. I assume Wilkingia is feminine so it should be terminalis (its other species, where adjectival, all seem to end in -a).