1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
3 specimens
Cerithium oshimanum
BPBM 204396
Daniel B. Langford; Ditlev Due ThaanumRyukyu Islands
BPBM 229697
Langford & Thaanum; Thaanum, 1925Ryukyu Islands
BPBM 254553
Daniel B. Langford & Ditlev Due Thaanum; Ditlev Due Thaanum, 1925Ryukyu Islands