02531cam a22003013u 450000100060000000300070000600500170001300600020003000700050003200800410003704000110007804100170008905000060010610000310011224502340014326400510037730000470042833600260047533700260050133800360052750000310056350802260059452012890082053400450210965300150215485600430216999900170221244526UtSlPG20260610134025.0mcr n260607r2013||||utu|||||o|||||||||||||| d aUtSlPG 7aen2iso639-1 4aQ1 aHaeckel, Ernst,d1834-191910aReport on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index :bReport on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIII 1aSalt Lake City, UT :bProject Gutenberg,c2013 a1 online resource :bmultiple file formats atextbtxt2rdacontent acomputerbc2rdamedia aonline resourcebcr2rdacarrier aRelease date is 2013-12-28 aE-text prepared by Charlene Taylor, Adrian Mastronardi, Keith Edkins, and the Online Distributed Proofreading Team (http://www.pgdp.net) from page images generously made available by Internet Archive (https://archive.org) a"Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-76" by Ernst Haeckel is a scientific publication written in the late 19th century. This work is a detailed examination of radiolarians, a group of protists characterized by their intricate silica-based skeletons, based on specimens collected during the celebrated Challenger expedition. Haeckel's comprehensive analysis includes descriptions of various genera and species, their morphology, and classifications within the broader context of zoological studies. The beginning of this publication presents extensive introductory material, laying the groundwork for understanding the findings regarding radiolarians. Haeckel describes the overall framework of the study, outlining the various subcategories of radiolarians and introducing the complex classification system he has developed. It delves into the nuances of their structural characteristics, such as the distinctive features of their skeletons, and establishes a categorized approach to exploring the diversity and evolutionary significance of the collected specimens. This opening serves as a precursor to the detailed accounts of specific radiolarian forms that follow in the subsequent chapters. (This is an automatically generated summary.) nOriginal publication data not identified aRadiolaria40uhttps://www.gutenberg.org/ebooks/44526 c85365d85365