THE NAUTILUS. 39 



NEW ENGLAND PYRAMIDELLID^, WITH DESCRIPTION OF A NEW 



SPECIES. 



BY HENRY AY. AYINKLEY. 



A very excellent work on the New England Pyramidellidce by 

 Mr. Paul Bartsch has just been published by the Boston Society of 

 Natural History. Specimens from the writer's cabinet were used in 

 compiling this work. Unfortunately there are some omissions. I 

 can blame no one but myself. My excuse is that my specimens were 

 packed and stored, and a few collected later had not been worked 

 up. Hence this supplement. 



Turbonilla {Ptycheulimelld) polita Verrill. Four specimens (de- 

 termined by Verrill) are in the author's cabinet. The tw-o best ones 

 have ten whorls, and measure 7.5 mm. They are from Eastport, 

 Maine. 



Five specimens of Odostomia, collected at Provincetown, have the 

 many lines of trifida hedequensis. They are about the size and 

 shape of the P. E. I. specimens, and probably of that variety. 



Odostomia {Odostomia) modesta ^UTa\>^o-a. Two excellent speci- 

 mens of this species were found at Provincetown. They are slightly 

 larger than the specimen used to illustrate Bartsch's article. 



Odostomia bisuturalis. An interesting variety lacking the revolv- 

 ing line, occurs at Provincetown. Mention may be made of three 

 pathological specimens of this species found at the same place. Deep 

 sutures and everted lip, they are one of nature's jokes. 



Pyramidella (Sulcorinella) bartschi n. sp. Fig. 



Shell broadly conic, semi-transparent, vitreous. Nuclear whorls 

 small, deeply obliquely immersed in the first of the succeeding turns, 



