286 AMERICAN JOURNAL 



Among a few Pupce which I recently collected in the vicin- 

 ity of Philadelphia, I found some young shells of so-called 

 marginatus, which attracted my attention on account of the 

 much more rapid increase of size in their volutions, and 

 less pupceform appearance, showing that when adult they 

 would be a wider species, and more turrited. Upon comparing 

 with specimens in my cabinet, from other localities, the differ- 

 ence was at once apparent. 



There are, then, two species: — 



Bui. {Napceus) marginatus. Say. — Lip widely reflected; form 

 very like Pomatiopsis lapidaria, Say. 

 Synonym, B. fallax, Binney, Terrestrial Mollusks. 



Bui. {Napceus) fallax^ Say. — Lip but slightly expanded; form 

 resembling, but a little more elevated than 

 Amnicola Sayana^ Anth. G, W. T., Jr. 



New Works in Preparation. — Mr. E.S.Morse is preparing 

 for publication a Monograph of the Pupadae of the United 

 States. He proposes to investigate the subject thoroughly, 

 studying both the shells and soft parts. Those of our readers 

 who have collected these shells, will greatly aid in the matter, 

 by sending specimens by mail, for examination, to Mr. M., at 

 Gorham, Me. 



Dr. A. A. Gould is at work on a new edition of his "Inver- 

 tebrata of Massachusetts," the Legislature of that State having 

 generously testified their appreciation of the educational 

 value of such works by granting an appropriation for its 

 publication. The " Invertebrata," though published but twenty 

 years ago, has long been out of print, and copies have become 

 very hard to procure; the new edition will, therefore, be in 

 considerable demand. 



New Locality of Limn^a ampla, Mighels. — "Last year I 

 found live specimens of this hitherto very local species, in 

 Seabass Lake, only 15 miles from Portland, Me., and nearly 

 200 miles from its original place of discovery." — E. S. 31orse, 

 in letter to the Editor. 



Plates 25 and 26 are unavoidably delayed till our October 

 issue. 



