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1
<<The>> Philippine land mollusks of the genus Opisthoporus
Published 1932“…US Gov. Print. Off.…”
Book -
2
<<The>> Philippine land mollusks Cochlostyla rufogaster and Obba marmorata and their races
Published 1932“…US Gov. Print. Off.…”
Book -
3
<<The>> land shells of the genus Obba from Mindoro Province Phillippine islands
Published 1933“…US Gov. Print. Off.…”
Book -
4
<<The>> tree snails of the genus Cochlostyla of Mindoro Province Philippine islands
Published 1938“…US Gov. Print. Off.…”
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5