1899.] NATURAL SCIENCES OF THILADELPHIA. 145 



DESCRIPTIONS OF NEW SPECIES OF TURBONILLA OF THE WESTERN 



ATLANTIC FAUNA, WITH NOTES ON THOSE 



PREVIOUSLY KNOWN. 



BY KATHARINE JEANNETTE BUSH. 



The present article is based on a smalJ, but very interesting, 

 collection of gastropods belonging to the genus Turhonilla, which, 

 through the courtesy of Mr. Pilsbry, was recently loaned to the 

 writer for study. 



With few exceptions the specimens had been labelled as known 

 southern species and in a few instances had been figured in Try on' s 

 Manual, but a careful comparison with the original descrii^tions 

 and figures showed that these names were incorrectly applied. 

 Most of the species are now described and figured as new. That 

 so many personal names have been adopted for them is, to a great 

 extent, due to the almost overwhelming confusion existing in 

 the names of the hundreds of already described living species (&till 

 more increased among fossil forms), by their dupUcation and, in some 

 instances, reduplication, especially due to the lax usage of some au- 

 thors in respect to the two genera, Turhonilla and Odostomia.^ 



During the past few mouths the writer, jointly with Prof. A. E. 

 Verrill, has arranged and studied the many hundreds of specimens 

 belonging to these genera, dredged by the U. S. Fish Commission 

 from 1871-1887, and also those in the Yale University Museum. 

 The larger part of them represent unknown forms, fine figures of 

 which have been prepared, and, as soon as practicable, Avill be 

 published with their descriptions. 



The acknowledgments of the writer are here expressed to JNIr. 

 Pilsbry for the privilege of publishing the following descriptions, 

 and especially to Prof. Verrill, to whose generosity the drawings 

 for the accompanying plates are wholly due. 



List of Localities with the Species found at each. 



Coast of North and South Carolina. William Stimpson; R. 

 Swift. 

 No. 72,042. Turbonilla Stimpsoni, new species— not T. interrupta (Totten). 1 specimen 



South Carolina. AVilliam Stimpson ; R. Swift. 



^Tryon's Manual, viii. 

 10 



