TRANSLATOR'S PREFACE xi 



according to the appropriate British Admiralty chart of the area. Where the 

 name given in the "Times" Atlas differs greatly from that on the charts or 

 where the charts do not name a feature (this applies chiefly to the deep-sea 

 trenches) the Atlas name is given additionally or instead. The precise locality 

 of a few species is given in geographical coordinates. More usually the lati- 

 tude and longitude of a neighbouring named locality are given to the nearest 

 degree, in order that the reader may the more easily find it on the chart. 



When this edition was in page proof I received the descriptions of yet 

 more new species of pogonophores from Professor Ivanov. These arrived 

 too late for inclusion and their publication has been arranged in the Journal 

 of the Linnaean Society, together with revised keys. The description of 

 another European species of Siboglinum by Dr. Southward should appear in 

 the Journal of the Marine Biological Association of the U.K. at about the 

 time of publication of this monograph. 



In preparing this translation I have eschewed any attempt at a literal 

 translation, preferring more often to catch the sense. In the present tense a 

 Russian sentence, particularly if it is purely descriptive, may be complete 

 without a finite verb. Rather than supply the implied part of the verb "to be" 

 I have often chosen to translate a noun by a verb. Common Russian idiom 

 has usually been replaced by an English equivalent, but I have endeavoured 

 to retain idiom and turns of phrase which seem more personal to the author. 

 I have also tried to echo the balance in his choice between latinate and ver- 

 nacular expressions ("posterior" and "hind", "gut" and "alimentary canal", 

 for example). In creating an English terminology for Pogonophora I have 

 been guided by Dr. Eve C. Southward and we have agreed on a standard set 

 of terms. 



I should like to thank numerous publishers for permission to reproduce 

 text and illustrations: Messrs. Masson & Cie, who first published many of 

 Professor Ivanov's original figures. Messrs E. J. Brill (publishers of the 

 Siboga Reports), the Trustees of the South African Museum, the Council of 

 the Marine Biological Association of the United Kingdom, and the Editorial 

 Boards and Publishers of the Canadian Journal of Zoology, of Pacific Science, 

 and of Cahiers de Biologie Marine. Amongst individuals who have afforded 

 material or intangible help I would particularly like to thank Dr. F. S. 

 Russell, f.r.s., Dr. A. J. Southward (whose rude remarks I have sometimes 

 ignored, no doubt to my cost), Dr. L. H. N. Cooper, Mr. J. E. Moorhouse 

 (who has prepared the systematic index), and my wife. 



May 1963 d. в. с 



