THE NAUTILUS. at 
Molluscan Notes IV, by Hugh C. Fulton, p. 3. Ennea pal- 
laryi Preston= E. vriesiana Ancy ; Xestina grunulosa Molldft. 
= H. danae Pfr.; Goniostomus subhybridus Da Costa = Bulr- 
mulus (Drymeus) pulcherrimus H. Adams; Pseudachatina 
daillyana Pilsbry = P. perelongata Rolle; Neptunea antiqua 
japonica Dautz. & Fisch. —= Chrysodomus intersculptus Sowb. 
Additions to the List of Recent Middlesex Mollusca. By J. 
EK. Cooper, p. 5. 
The Affinities of Pyramidula, Patulastra, Acanthinula and 
Vallonia. By Hugh Watson, pp. 6-30, pls. 1 and 2. 
On Mitra montereyi, a new Californian species. By S. 
Stillman Berry, pp. 31-33. 
On Six Variations of Clausilia bidentata and Ena obscura, 
with a locality. By A. E. Boycott, pp. 34-42. 
On Mitra montereyi, a new Californian species. By S. 
Stillman Berry, pp. 31-31. 
On the Size Variation of Clausilia bidentata and Ena ob- 
scura, with a locality. By A. E. Boycott, pp. 34-42. 
CONTRIBUTIONS TO THE HISTORY OF THE CERIONID&. By C. 
J. Maynard (Pts. 1-5, App. to Vol. 10, Records of Walks and 
Talks with Nature). 
Own Certain Fosstu SHELLS IN THE BOULDER CLAY oF Bos- 
TON Basin. By Edward S. Morse (Amer. Jour. Sci., 1920, 
Vol. 49, pp. 157-165). A very interesting paper. The author 
believes that the thick fragments found in the various deposits 
represent the southern Venus campechiensis and not V. mer- 
cenarim. 
A CLASSIFICATION OF THE AMERICAN OPERCULATED LAND 
MOLLUSKS OF THE FamIty ANNULARID&. By John B. Hen- 
derson and Paul Bartsch (Proce. U. S. Nat. Mus., 1920, Vol. 
58, pp. 49-82). In this paper American ‘‘Cyclostomide’’ are 
separated from the Old World groups and placed in the 
family Annulariide, the principal character used in sep- 
arating them being the radula. 
