Download or read book The Opalinid Ciliate Infusorians written by Maynard Mayo Metcalf and published by . This book was released on 1923 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bulletin investigates the life histories and structure of various members of the family Opalinidae infesting Anurans (frogs). The author studied European specimens Protoopalina ["Opalina'] intestinalis and P. caudata, before making collections of Opalinids from America and the West Indies. In this bulletin, the author provides a dense treatise on this group of organisms.