1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
4 specimens
Ostrea denselamellosa
BPBM 260963
D.B. Langford & D. Thaanum; D. Thaanum, 1925Japan
BPBM 260964
D.B. Langford; D. Thaanum, 1924Japan
BPBM 260965
D. ThaanumJapan
BPBM 260966
D. Thaanum, 1926Koyazu