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

Rissoina
BPBM 228925
Thanum; Thaanum, 1920
Hawaiʻi Island

Cerithium mutatum
BPBM 229672
Thanum; Thaanum, 1922
Palmyra Atoll

Cerithium mutatum
BPBM 229673
Thanum; Thaanum, 1922
Kingman Reef

Cerithium mutatum
BPBM 229674
Thanum; Thaanum, 1923
Wake Island

Nerita japonica
BPBM 228052
Langford & Thanum; Thaanum, 1925
Ryukyu Islands

Cypraea chinensis
BPBM 232256
Langford & Thanum; Thaanum, 1928
Ryukyu Islands

Cypraea chinensis
BPBM 232257
Langford & Thanum; Thaanum, 1928
Ryukyu Islands

Cypraea cladestina
BPBM 232285
Langford & Thanum; Thaanum, 1925
Ryukyu Islands
