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

Trochus maculatus
BPBM 204678
Daniel B. Langford; Ditlev Due Thaanum, 1949
Kayangel, Palau

Trochus maculatus gibberulus
BPBM 227236
D. B. Langford; Thaanum, 1946
Kayangel, Palau

Trochus maculatus verrucosa
BPBM 227324
D. B. Langford; Thaanum
Kayangel, Palau

Monodonta labio
BPBM 227384
D. B. Langford; Thaanum
Kayangel, Palau
