| Author Title Journal |
Leidy J (1852) Helminthological contributions - No. 2. Proceed. Acad. nat. sc. Philadelphia. 1850-1851. 5: 224-227 |
Abstract / Notes
reference from Graff Lv 1904-08 (citation)- p 1759. Available on Web-a-ebscohost-com.wv-o-ursus; p 225 is on Planaria spp while rest is on Aspidogaster and oligochaetes.
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