WBruceiella
WBruceiella globulusWBruceiella laevigata
WCallomphala
WChlorostoma lischkei
WChlorostoma xanthostigma
WCirsonella
WCirsonella consobrina
WCirsonella microscopia
WCirsonella naticoides
WCittarium maestratii
WDikolepsWDikoleps pruinosa
WDillwynella haptricola
WFucariaWFucaria mystax
WGanesa (gastropod)
WGaza olivacea
WGaza polychoronos
WHaplocochlias arrondoi
WHaplocochlias loperi
WHaplocochlias ortizi
WHaplocochlias pacorubioi
WLeucorhynchia
WLeucorhynchia gorii
WLeucorhynchia minor
WLeucorhynchia tricarinata
WLiocarinia
WLiotella crassicostata
WLissomphalia
WLodderena ornata
WLodderia lodderae
WMargarites ecarinatus
WMargarites olivaceus
WMargarites striatus
WMargarites vorticiferus
WMargaritidae
WMikro (gastropod)
WMunditiellaWMunditiella ammonoceras
WNorrisia
WOmphalius
WParviturbo fenestratus
WParviturbo weberi
WProtolira valvatoides
WSkenea valvatoides
WSkeneoidesWSkeneoides exilissima
WTectus elatus
WTectus magnificus
WTegula atra
WTegula aureotincta
WTegula ignota
WTegula picta
WTegula snodgrassi
WZalipais
WZalipais turneri