K. J. Bash — Notes on the Family Pyrdmidellidee. 477 



In 1902, I visited the National Museum and found that Dr. 

 Dall had given the species from the west coast of America, 

 belonging to this group, to his assistant, Mr. Bartsch, to work 

 up, as I had those of the east coast. In this connection rare 

 species and types, both fossil and recent, were loaned by 

 foreign museums,* (especially the Berlin Museum, in which 

 were the collections of H. and A. Adams, Pastel, Dunker, and 

 Hilgendorf ; and the British Museum, where are the collection 

 of D'Orbigny and many others having species . belonging to 

 this group; as well as the Museum at Copenhagen.) Figures 

 were being made so that in the future there could, or rather 

 would, be but small chance for errors in the identification of 

 species. 



In 1903, an extensive report on fossils of California was 

 published by Mr. Arnold, in the California Academy of Sci- 

 ences. In this, Dr. Dall and Mr. Bartsch furnished the part 

 on mollusks, and the senior author credited the work on the 

 family Pyramidellidse to Mr. Bartsch. 



Also, in 1904, a " Synopsis of the Genera, Subgenera, and 

 Sections of the Family Pyramidellid as" was published by these 

 authors in the Bulletin of the Biological Society of Washing- 

 ton. f Quoting from the introductory remarks, " The synonymy, 

 which is very involved, is reserved for another paper in which 

 the species of the west coast of America will be monographi- 

 cally treated. It was thought best to put on record the classi- 

 fication adopted j so that before the paper referred to appears 

 the authors may have the benefit of criticism from other 

 students." 



Since the publication of my article in 1899, collectors of 

 mollusks from California, Florida, and various places along the 

 coast of New England have sent or brought their specimens to 

 me for the identification of the species. This has been a 

 source of great pleasure, as well as profit, as it enabled me, 

 not only to become acquainted with rare species, as there was 

 often but one specimen of a kind, but in instances where there 

 were several, duplicates were given me, which were placed in 

 our museum collection. When new forms appeared from the 

 west coast they were referred to Mr. Bartsch ; and those from 



type— C. mutinensis Sacco. V. & B., 1900 + D. & B.. 1904. Evalea A. 

 Adams, 1860 ; type— E. elegans A. Adams. Y. & B., 1900 + D. & B., 1904. 

 Cingulina A. Adams, I860 ; type — C. circinata A. Adams. V. & B., 1900 + 

 D. & B., 1904. Miralda A. Adams, 1864 ; type— M. diadema A. Adams. 

 V. & B., 1900 + D. & B., 1904. In three instances (Mumiofa, Mormula, and 

 Cingulina), although citing the same type, these authors differ in the inter- 

 pretation of the generic relations of these subgenera. 



*Dall, in Dall and Bartsch. Notes on Japanese, Indopacific, and Ameri- 

 can Pyramidellidae. Proceedings U. S. National Museum, vol. xxx, pp. 221- 

 269. pis. xvii-xxvi. Washington. 1906. 



f'Vol. xvii, pp. 1-16. 



