†Mactromeris albaria selbyensis Packard 1916 (clam)
Bivalvia - Cardiida - Mactridae
Alternative combination: Spisula selbyensis
Belongs to Mactromeris albaria according to E. J. Moore 2003
Sister taxa: Mactromeris albaria coosensis, Spisula (Mactromeris) albaria goodspeedi, Spisula albaria oregonensis, Spisula albaria ramonensis, Spisula albaria scapoosensis
Type specimen: UCMP 11483
Ecology: facultatively mobile infaunal suspension feeder
Distribution: there are no occurrences of Mactromeris albaria selbyensis in the database