THE NAUTILUS. 131 



interesting to know to what extent the species has spread during the 

 past fifty years, or whether with advancing civilization and the 

 clearing and burning of the woods it has diminished. We have no 

 recent records outside of the Gaspe region C. W. JOHNSON. 



WE regret to announce the death of Charles Abbott Davis, 

 Curator of the Roger Williams Park Museum, Providence, R. I. 

 He died January 29, at the age of thirty-nine years. 



NOTE ON TURBONILLA CASTANEA AND ODOSTOMIA MONTEREY- 



ENSIS. In the hurry of departure for the Philippine Islands, Dr. 

 Bartsch applied to two new Pyramidellids in our recent paper (No. 

 1574) in the U. S. Nat. Museum Proceedings, the names Turbonilla 

 (Pyrgiscus) castanea (p. 509) and Odostomia (Amaura) montereyensis 

 D. and B., (p. 531). These names being preoccupied, I propose to 

 substitute T. (P.) castanella and 0. (A.) ccurfteldi WM. H. DALL. 



MlLAX GAGATES AND VlTREA CKLLARIA IN COLORADO Four 



of my students, Messrs. Walter Groom, Floyd House, Merrit Hunt 

 and William Winner, recently examined the greenhouses of Boulder 

 for Mollusca, to be used for class purposes. Quite to my surprise, 

 they obtained five species, two of which had not previously been 

 found in Colorado. V- alliaria was first found in Colorado last 

 year, also in a Boulder greenhouse. The species obtained were : 



(1) Milax gagates (Drap.). Many, of various ages, all of the 

 variety plumbea, and with the keel rather inconspicuous in life. 

 They probably came from the Pacific coast, and represent the hewstoni 

 form, which I have never been able to separate from gagates. 



(2) Agriolimax agrestis (L.). Several, from light reddish to 

 almost wholly black. 



(3) Agriolimax campestris (Binney). One. 



(4) Vitrea cellaria (Miiller). Many specimens, some of good size. 



(5) Vitrea alliaria (Miller). Several, with the garlic odor very 

 strong. 



P. S., Feb. 6. The examination of the Boulder greenhouses has 

 been continued, and to-day Mr. Ivan Beck brought in a number of 



Vitrea lucida (Drap.), also new to Colorado. One specimen has a 

 diameter of almost 15 mm. There was also secured an example of 



Vitrea cellaria, var. margaritacea Schmidt, the white variation. As 

 the introduced species of Vitrea are not very generally known, a 

 brief table may fc be of service. 



