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

Helix melanostoma
BPBM 5912
A.W. Langdon; Garrett
France

Helix tourannensis
BPBM 5989
A.W. Langdon; Garrett
China

Helix ravida
BPBM 5990
A.W. Langdon; Garrett
China

Helix phlebophora
BPBM 5991
A.W. Langdon; Garrett
Madeira

Helix tranguebarica
BPBM 5993
A.W. Langdon; Garrett
India

Helix amoena
BPBM 5995
A.W. Langdon; Garrett
Philippines

Helix sirena
BPBM 5996
A.W. Langdon; Garrett
Philippines

Helix sanis
BPBM 6009
A.W. Langdon; Garrett
Indian Ocean

Helix gilua
BPBM 6021
A.W. Langdon; Garrett
Philippines

Helix porphyrea
BPBM 6029
A.W. Langdon; Garrett
Philippines

Helix melanotragus
BPBM 6034
A.W. Langdon; Garrett
Ceylon

Helix codia
BPBM 6041
A.W. Langdon; Garrett
Italy

Helix nilagirica
BPBM 6046
A.W. Langdon; Garrett
India

Helix frigida
BPBM 6048
A.W. Langdon; Garrett
Italy

Helix melitensis
BPBM 6050
A.W. Langdon; Garrett
Malta

Helix foetens
BPBM 6051
A.W. Langdon; Garrett
Austria {?}

Helix trochalia
BPBM 6052
A.W. Langdon; Garrett
Indian Ocean

Helix submaritima
BPBM 6053
A.W. Langdon; Garrett
Africa

Helix atkinsoni
BPBM 6056
A.W. Langdon; Garrett
Burma

Helix sylvatica
BPBM 6072
A.W. Langdon; Garrett
Germany

Helix setipila
BPBM 6073
A.W. Langdon; Garrett
Sicily

Helix kollari
BPBM 6074
A.W. Langdon; Garrett
Greece

Helix lens
BPBM 6303
A.W. Langdon; Garrett
Greece
