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

Trochomorpha
BPBM 119231
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Owaraha, Solomon Islands

Trochomorpha
BPBM 119232
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Owaraha, Solomon Islands

Trochomorpha
BPBM 119233
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Owaraha, Solomon Islands

Trochomorpha
BPBM 119234
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Owaraha, Solomon Islands

Trochomorpha
BPBM 119235
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Owaraha, Solomon Islands

Trochomorpha sanctaeannae
BPBM 119236
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Owaraha, Solomon Islands

Trochomorpha
BPBM 119257
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Malaita, Solomon Islands

Trochomorpha
BPBM 119267
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Malaita, Solomon Islands

Trochomorpha
BPBM 119268
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Malaita, Solomon Islands

Trochomorpha
BPBM 119269
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Malaita, Solomon Islands

Trochomorpha
BPBM 119311
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Uki Ni Masi, Solomon Islands

Lamellidea variabilis
BPBM 119315
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Palmyra Atoll

Lamellidea variabilis
BPBM 119316
Crocker Expedition [=Zaca Expedition]; Barker, George T., 1933
Palmyra Atoll
