i6 Diirdor' s Ann^ial Report. 



cies were in our colledlion : Succinea lumbalis Gld., Leptachatina 

 striatula Gld., and Bifidaria pediculus var. nacca Gld. 



Those not in our colledlion were: Nesopupa lyrata Gld., 

 Kaliella subtilissima Gld:, and Opeas junceus Gld. The re.st of 

 Gould '.s types were seen in Washington. 



On returning to New York a careful list of all the descriptions 

 and of the j^apers relating to our land shells, and not in the library, 

 was made. 



Of the 202 papers, published up to 1906 and relating to our 

 shells, loS are in our library or have been sent to the writer by 

 their authors. All, but one or two of the remaining 94, were read 

 and, if important, copied or notes made of their contents. All 

 descriptions were copied, so that we now have practically all the 

 descriptions of the species of our land shells. 



With Dr. Pilsbry a paper was prepared on the Helicina of our 

 Islands. Another short paper was published in the Proceedings 

 of the Academy of Natural Sciences of Philadelphia "On Hawaiian 

 Species of Sphyradium." 



During this second visit to Philadelphia, Dr. Pilsbry suggested 

 that the writer work up, in conne(5lion with him, the genera Lepta- 

 chatina and Auriculella and the Hawaiian species of Tornatellina. 

 Permission was asked for and granted and all the specimens be- 

 longing to these genera in the Museum coUecflion were sent on for 

 study. The work on these genera occupied all the time from May 

 until tlie latter part of September, and the manuscripts are nearlj- 

 ready for publication. 



In closing the writer wishes to thank the Dire(5lor and the 

 Trustees for permission to take the trip; also Mr. Thaanum and 

 Mr. Ivy man for series of shells to be taken along. The writer also 

 wishes to thank the following gentlemen for their many kindnesses 

 and for permitting him to examine the shells belonging to them or 

 in their charge : Dr. William H. Dall, Dr. Bartsch, Prof. H. W. 

 Henshaw, M. C. F. Ancey, Mr. PCdgar Smith, Mr. E. R. Sykes, 

 Dr. Samuel Henshaw, Dr. Faxon, Dr. Alfred G. Mayer, Dr. C. W. 

 Johnson. Prof. H. S. Williams, Dr. J. M. Clarke, Mr. Vanatta, 

 and especially Dr. H. A. Pilsbry for his help, suggestions and 

 encouragfement. 



