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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.

Palcohelicina
BPBM 119280
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Rennell, Solomon Islands

Paleohelicina
BPBM 119301
Crocker Expedition [=Zaca Expedition]; Barker, George T.
Guadalcanal Island, Solomon Islands

Paleohelicina
BPBM 119302
Crocker Expedition [=Zaca Expedition]; Barker, George T.
Guadalcanal Island, Solomon Islands

Paleohelicina
BPBM 119303
Crocker Expedition [=Zaca Expedition]; Barker, George T.
Guadalcanal Island, Solomon Islands
