1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
4 specimens
Siphonaria normalis
BPBM 259118
Thaanum, DitlevMidway Atoll
BPBM 259127
D.B. Langford; Thaanum, Ditlev, 1940Midway Atoll
Williamia radiata
BPBM 259137
Eugene S. Kuhns & D.B. Langford; Thaanum, Ditlev, 1924Midway Atoll
Siphonaria
BPBM 66304
D. Thaanum, 1923Midway Atoll