2 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 



we have used the abbreviations U.S.N.M, for the U, S. National 

 Museum, Washington, D. C, B.M.N.H. for the British Museum 

 (Natural History), London, and M.N. H.N. for the Museum National 

 d'Histoire Naturelle, Paris, as nearly every type specimen figured and 

 discussed was from one of these institutions. 



ACKNOWLEDGMENTS 



We have for the past few years been restudying all type species of 

 genera available in this country or obtainable by loan or exchange 

 from other countries. As many genera were not available in this 

 country, approximately 10 months of the past year were spent in west- 

 ern Europe visiting museums and other institutions and searching for 

 and restudying the European types of Foraminifera. New descriptions 

 were written from the actual specimens and the types were refigured 

 by Helen Tappan Loeblich in these institutions. Other specimens 

 figured in the present paper, from the collections of the U. S. National 

 Museum in Washington, D. C, were illustrated by Lawrence Isham. 



In connection with the preparation of the present paper we wish to 

 acknowledge the invaluable assistance given to us by various institu- 

 tions and individuals. The British Museum (Natural History), in 

 London, very graciously allowed us unrestricted access to their fora- 

 miniferal collections, and v/e were personally aided there by Dr. H. W, 

 Parker, head keeper of zoology, Dr. Norman Tebble, and A. G. Davis. 

 We not only examined types in the collections of Brady, Heron-Allen 

 and Earland, Williamson, Sidebottom, Parker and Jones, and Carter, 

 but also examined the original faunal slides and samples in many 

 instances, and were allowed to designate lectotypes from the original 

 cotypes of many of these workers. 



In France, with the kind permission of M. Roger, we were allowed 

 to borrow types from the Museum National d'Histoire Naturelle, in 

 Paris, and to select lectotypes for species of d'Orbigny and of Terquem. 

 Other types were borrowed from the collections in the Sorbonne in 

 Paris. 



We are also grateful to the Bureau des Recherches Geologiques et 

 Geophysiques, in Paris, for allowing us to use their laboratory during 

 our stay in Paris, and to M. Pierre Marie, chief micropaleontologist 

 there, who aided us in locating and borrowing various type specimens 

 in Paris. 



LTnstitut Frangais du Petrole also allowed us to work in their 

 laboratory at Rueil-Malmaison and to examine and illustrate types in 

 their collection. We are especially grateful to Mme. Yvonne Gubler 

 and M. Lys for their assistance. 



