14 THE NAUTILUS. 



County, Indiana. Found only on gravel bars in swiftly running 

 water. 



Fourteen specimens were collected by the author in August, 1901, 

 while working for the Indiana State Geological Survey. 



The smaller of the two type specimens (figured a little enlarged 

 on pi. II) is in the Indiana State Museum, the other in the author's 

 cabinet. Soft parts in the U. S. National Museum. 



I am under obligations to Mr. C. T. Simpson for assistance in 

 preparing the description of the soft parts. 



The species is closely allied to Z/. leptodnn Rat., particularly in its 

 anatomical characteristics ; the shell differs from that species by not 

 having the wing and by the posterior end being rounded and in llir 

 full-grown shell being not more than on^-lialf the size. 



The two small shells found at Hardy. Ark., by Mr. J. H. Ferriss, 

 by him referred to L. simpsoni (NAUTILUS, Aug., 1900, page 39), 

 are without doubt this species. 



Mr. C. T. Simpson informs me that Mr. Paul Bartseh of the 

 National Museum believes he has found the same species in tie 

 Iowa River at Iowa City, Iowa. 



I take pleasure in naming this species in honor of Prof. W . S. 

 Blatchley, State Geologist of Indiana. 



NEW ENGLAND MARINE COLLECTING. 



BY RKV. IIKXHY W. \\ INK I, I \. 



Occasional letters ask the following questions : " Can I stork up 

 duplicates by a week or two in New England ? Where is the best, 

 place to collect?" An answer to all may be made by narrating my 

 own experience. During fifteen years I have devoted much time to 

 collecting. Considerable dredging has been done, but not below 

 2o fathoms. The most careful searching has been done at. Eastport, 

 Wiscasset, Casco Bay and Old Orchard. Maine, and Wood's Hull, 

 Mass. Other places have had some visits. This area contains per- 

 haps 250 shell-bearing mollusca ; of these I have 200 and lack oO. 

 Of the 200 found by me, 113 species I have only for my own cab- 

 inet, 12 more I have spared for exchange perhaps once, and 20 more 

 have yielded a few exchanges. This leaves 5o species that I have 

 had in quantity. 



