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1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
333 specimens · page 4
Alvania alaskana
BPBM 254973
Ditlev Due Thaanum
Alaska
Alvania carpenteri
BPBM 254974
Ditlev Due Thaanum
Alaska
Alvania compacta
BPBM 254975
Ditlev Due Thaanum
Alaska
Alvania compacta
BPBM 254976
Ditlev Due Thaanum
California
Alvania cosmia
BPBM 254977
Ditlev Due Thaanum
California
Alvania montereyensis
BPBM 254978
Ditlev Due Thaanum
California
Cingula kurilensis
BPBM 254980
Daniel B. Langford; Ditlev Due Thaanum, 1936
Japan
Subonaba candidissima
BPBM 255100
Ditlev Due Thaanum
New Zealand
Mollusca
BPBM 256065
A.J. Ostheimer III; R.T. Abbott, ANSP {=Academy Of Natural Sciences, Philadelphia}, 1955
Malakal Island, Palau
Rissoa neozelandica
BPBM 256165
Thaanum, Ditlev
New Zealand
Subonoba foveauxiana
BPBM 256167
Thaanum, Ditlev
New Zealand
Rissoa atropurpurea
BPBM 256168
Thaanum, Ditlev
Australia
Lucidestea atkinsoni
BPBM 256169
Thaanum, Ditlev
Australia
Rissoa cyclostoma
BPBM 256172
Thaanum, Ditlev
Australia
Rissoa olivacea
BPBM 256177
Thaanum, Ditlev
Australia
Rissoa perexigua
BPBM 256178
Thaanum, Ditlev
Australia
Alvania strangei
BPBM 256179
Thaanum, Ditlev
Australia
Austronoba oliveri
BPBM 256182
Thaanum, Ditlev
Kermadec Island
Rissoa woodsi
BPBM 256183
Thaanum, Ditlev
Australia
Rissoa ciranata
BPBM 256186
Thaanum, Ditlev
Natal
Rissoa abyssicola
BPBM 257380
Thaanum, Ditlev
France
Rissoa membranacea
BPBM 257381
Thaanum, Ditlev
France
Rissoa parva
BPBM 257382
Thaanum, Ditlev
France
Rissoa semitriata
BPBM 257383
Thaanum, Ditlev
France