Southern Quahogs are sometimes observed at University Beach during low tide events. Note that Corpus Christi Bay is a microtidal system, so the tidal variation is usually less than one foot (30 cm). One specimen was dug up for photos then returned to its original position.
Large specimens (maybe about 100 mm, 4 in, in length) of the Southern Quahog are found buried in the muddy sediment. It is one of the largest and heaviest clams found in Texas. It can grow to just over 150 mm, 6 in, but very larges specimens are rare.
See more about this species at the Biodiversity of the Gulf of Mexico (BioGoMx) database at:
http://gulfbase.org/biogomx/biospecies.php?species=Spp-35-0406