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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
Haminoea
BPBM 258666
Geo. Willett; Thaanum, Ditlev, 1913
Laysan
Placiphorella rufa
BPBM 225124
Geo. Willett; Thaanum, 1914
Alaska
Lepidochiton raymondi
BPBM 225148
Geo. Willett; Thaanum
Alaska
Schizoplax brandti
BPBM 225153
Geo. Willett; Thaanum, 1917
Alaska
Dentalium pretiosum
BPBM 225404
Geo. Willett; Thaanum
Alaska
Otopleura mitralis
BPBM 257108
Geo. Willett; Thaanum, Ditlev, 1913
Laysan
Williamia radiata
BPBM 259138
Geo. Willett; Thaanum, Ditlev
Laysan
Siphonaria thersites
BPBM 259238
Geo. Willett; Thaanum, Ditlev
Alaska
Siphonaria thersites
BPBM 259239
Geo. Willett; Thaanum, Ditlev
Alaska