Granosolarium excavatum Bieler, 1993
11.3 mm shell diameter (Severns, 2011).
a relatively small, flattened species with a broad
umbilicus and finely beaded spiral cords.
excavatum has been trawled from a depth of
338-364 m (1109-1194 ft). (Severns, 2011)
It was first found in Hawaii in trawls by the RV
Albatross in 1902.