![Media type: image, MCZ:Mala:183526 Identified as Vertigo (Ptychochilus) quadrasi type status [type status needs research] of Vertigo (Ptychochilus) quadrasi. Aspect: lateral](https://mczbase.mcz.harvard.edu/specimen_images/malacology/large/183526_Vertigo_quadrasi_LAT.jpg)
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Oceania: Guam: Guam
A. Oberwimmer [no verbatim date data]
[type status needs research] of Vertigo (Ptychochilus) quadrasi in Quadras, J. F. and von Möllendorff 1894
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![Media type: image, MCZ:Mala:183526 Identified as Vertigo (Ptychochilus) quadrasi type status [type status needs research] of Vertigo (Ptychochilus) quadrasi. Aspect: lateral](https://mczbase.mcz.harvard.edu/specimen_images/malacology/large/183526_Vertigo_quadrasi_DOR.jpg)
2![Media type: image, MCZ:Mala:183526 Identified as Vertigo (Ptychochilus) quadrasi type status [type status needs research] of Vertigo (Ptychochilus) quadrasi. Aspect: lateral](https://mczbase.mcz.harvard.edu/specimen_images/malacology/large/183526_Vertigo_quadrasi_APT.jpg)
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