THE FORAMINIFERA OF THE TROPICAL PACIFIC 

 COLLECTIONS OF THE "ALBATROSS," 1899-1900 



Part 2. — Lagenidae to Alveolinellidae 



By Joseph Augustine Cushman 



Director, Cushman Laboratory for Foraminiferal Research, Sharon, Massachusetts 



INTRODUCTION 



This paper is the second part of a work the intent of which is to 

 describe and illustrate the foraminifera of the tropical Pacific col- 

 lected by the United States Bureau of Fisheries steamer Albatross, 

 together with certain other related material from shallow water of 

 the same region. Part 3 will take up in systematic order the rest of 

 the families after the Alveolinellidae. Readers are referred to Part 

 1 ^ (p. 3) for a map showing the general route of the Albatross through 

 the South Pacific. 



It has become evident from our study of the shallow-water foram- 

 inifera from about the various oceanic islands that many species 

 are very localized in their distribution, and probably a careful survey 

 of the different island groups will show that there are many of these 

 isolated species or varieties that have not yet been recognized. 

 Where these occur, they are often to be found in great numbers, as is 

 frequently the case with such localized species in other groups. 



Table 1. — Abbreviations used in the tables in this report to denote the character of 



the bottoms of the stations 



' The foraminifera of the tropical Pacific collections of the Albatross, 1899-1900. Astrorhlzidae to Tro- 

 chamminidae. U. S. Nat. Mus. Bull. 161, pt. 1, 84 pp., 1 flg., 17 pis., June 18, 1932, 



