144 THE NAUTILUS. 



Atlantic to South Carolina;" the latter, " Upper Mississippi drain- 

 age, Ohio, Cumberland and Tennessee systems; Michigan, Upper 

 St. Lawrence drainage." 



In his description (Jour. Acad. Nat. Sci., I., p. 459) Mr. Say 

 gives the Scioto river as the locality of the types of u Alasmodonta 

 marginata," and states that the types are in the Academy collection. 

 There is one good specimen in the collection of the Academy, of the 

 truncata species, labeled A. marginata, Say, from the Scioto river. 

 Mr. Say must have been familiar with the eastern form. Did he 

 decide to change the name of the western truncate form to " trun- 

 cata " and let "marginata" cover the eastern form? Probably no 

 one living can answer this cpjestion, but we can imagine it answered 

 in the affirmative, and label the Atlantic slope shell "marginata, 

 Say," and the Ohio shell " truncata, Wright," in accord with Mr. 

 Simpson's magnificent synopsis. CHARLES LE!|OY WHEELER. 



GENERAL NOTES. 



TRIVIA PAUCILIRATA Sowb. Some months ago, upon looking 

 over some small shells labeled " Sarasota Bay," which have been 

 for many years in my collection, unidentified and collector unknown, 

 I noticed a very small Trivia which seemed to correspond to Sower- 

 by's description of T. paucilirata, a well-marked species. Upon 

 sending it to Mr. Melvill, he has confirmed my opinion and pro- 

 nounces it an undoubted representative of that species, the habitat 

 of which seems to have been hitherto unknown, at least so far as the 

 monographs would indicate. FRED L. BUTTON. 



EPIPHRAGMOPHORA FIDELIS (GRAY) IN CENTRAL CALIFORNIA. 

 During a short yachting cruise south, on San Francisco Bay, we 

 anchored during the night of Feb. 16, 1901, at Point San Mateo, 

 San Mateo Co. As it rained quite heavily during the night I an- 

 ticipated that snails would be out in force on the heavily wooded 

 slope of the point, so landed for a hunt in the morning. I saw under 

 the eucalyptus and pine trees hundreds of specimens of Epiphrag- 

 mophora ctrrosa Gld., Epiphragmophora calif orniensis nickliniana 

 Lea, and Gircinaria Vancouver cnsis Lea, of which I secured numerous 

 fine specimens. I also found, to my great surprise, two fine speci- 

 mens of Epiphragmophora fidelis Gray, hitherto recorded as being 

 found from Humboldt and Shasta Cos., Cal. to Vancouver Island 

 EDWARD W. GIFFORD. 



