Category: Science - Biology

Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) Report on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIII

Haeckel, Ernst, 1834-1919· 15 chapters· 433,818 words

Prepared Under the Superintendence of the Late Sir C. Wyville Thomson, KNT., F.R.S., &c. Regius Professor of Natural History in the University of Edinburgh Director of the Civilian Scientific Staff on Board and Now of John Murray One of the Naturalists of the Expedition

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12. CHAPTER XI.--LITERATURE AND HISTORY.

1. 1834. MEYEN, F., Palmellaria (Physematium, Sphærozoum), in Beiträge zur Zoologie, gesammelt auf einer Reise um die Erde. _Nova Acta Acad. Cæs. Leop.-Carol._, vol. xvi., Suppl...

15. part 0.012, on the base 0.02; length of the apophyses 0.02 to 0.03.

Spines slender, four-sided prismatic, thin, of nearly equal breadth throughout the whole length. Base with small wing-cross. Four apophyses much nearer the proximal than the dis...

6. CHAPTER II.--THE CENTRAL CAPSULE.

51. _Components of the Central Capsule._--In all Radiolaria without exception, at some period of life or other, the central portion of the soft body is separated from the periph...

8. CHAPTER V.--ONTOGENY OR INDIVIDUAL DEVELOPMENT.

141. _Individual Developmental Stages._--The germinal history of the Radiolaria presents great obstacles to direct observation, and hence is very incompletely known. The fragmen...

7. CHAPTER IV.--THE SKELETON.

101. _The Significance of the Skeleton._--The skeleton of the Radiolaria is developed in such exceedingly manifold and various shapes, and exhibits at the same time such wonderf...

11. part ii. pp. 915-926); see also the earlier communications by John Murray

(1876, L. N. 27, pp. 518-537), and by Sir Wyville Thomson (The Atlantic, L. N. 31, vol. i. pp. 206-246). In the Narrative (_loc. cit._, p. 916) the following table of marine dep...

5. CHAPTER I.--THE UNICELLULAR ORGANISM.

1. _Definition of the Radiolaria._--RADIOLARIA are marine Rhizopoda, whose unicellular body always consists of two main portions, separated by a membrane; an inner _Central caps...

9. CHAPTER VII.--VEGETATIVE FUNCTIONS.

201. _Mechanism of the Functions._--The vital phenomena of the Radiolaria are dependent upon the mechanical functions of their unicellular body, and like those of all other orga...

10. CHAPTER IX.--GEOGRAPHICAL DISTRIBUTION.

226. _Universal Marine Distribution._--Radiolaria occur in all the seas of the world, in all climatic zones and at all depths. Probably under normal conditions they always float...

14. part 0.02 to 0.025.

Spines quadrangular, with four broad lamellar, concave, prominent edges, which from the smaller middle part are broadened towards the two emarginated ends; each end with a small...

1. Part II.

Prepared Under the Superintendence of the Late Sir C. Wyville Thomson, KNT., F.R.S., &c. Regius Professor of Natural History in the University of Edinburgh Director of the Civil...

13. part 0.004, in the distal part 0.008.

Spines short and thick, conical, gradually thinner from the thick conical base towards the simple apex. Central part of the base with a large fulcral pyramid, but without leaf-c...

4. Chapter IX. Geographical Distribution, cxlvi

2. Chapter I. The Unicellular Organism, i

3. Chapter V. Ontogeny (Individual Development), xciii