Creator | Title | Description | Subject | Date | ||
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1 | Chamberlin, Ralph V. | New Genera and species of North American Paraiulidae | This paper presents briefly some results of a preliminary taxonomic study of North American millipeds of the family Paraiulidae in the author's collection. It is based primarily upon a study of the nude copulatory organs which offer the most convenient and dependable characters for the definitions b... | 1940-03-12 |