72 THE NAUTILUS. 



costata in one of the canons represented by one example. In the 

 same bulletin Dr. Cooper adds additional notes, and he lists V. />"/- 

 chel/a at Douner Lake and near Truckee, both in Navada County, 

 California. Of the presence of this species in Oakland, probably 

 Mr. Button could supply more data. M. BURTON WILLIAMSON. 



NOMENCLATURE OF SOME AFRICAN LAND SHELLS. When study- 

 ing the African mollusks, I remarked that the name Ennea micro- 

 stoma Smith, proposed for an African species, already is preoccupied 

 by Mollendorff for a Chinese species. Hence I should propose to 

 call the former E. strictilabris ; also Vertigo thawnasta Melvill & 

 Ponsonby is the same as V. sinistrorsa Craven ; also Hapalus is pre- 

 occupied in entomology, and must be called (Jnrvella diaper ; also 

 Faula preoccupied in Coleoptera, must be relegated to the synonymy 

 of Favxuliis, Schaufuss. C. F. ANCEY. 



ISCHNOCHITON ONiscus. The words " lateral " and " median " 

 were transposed in line 2, p. 42 of the August' number, in describing 

 this species. 



NEW PUBLICATIONS RECEIVED. 



REVISION OF THE MARINE GASTROPODS REFERRED TO CYCLOS- 

 TREMA, ADEORBIS, VITRINELLA and related genera, with descrip- 

 tions of some new genera and species belonging to the Atlantic, 

 Fauna of America, by Katharine Jeannette Bush (Trans. Con- 

 necticut Academy, x). An attempt to define and limit these difficult 

 groups by determining their type species, which are mostly figured, 

 and enumerating the Atlantic coast species. Several described 

 groups, such as Callomphalus Ad. & Ang. are omitted, and the 

 details of dentition are rather scanty and insufficiently illustrated, but 

 the paper is sufficiently complete to be of very great assistance to 

 those who in future work upon these genera. The new genera 

 Lissospira Leptofjyra, Molleriopsis, Choristella, Cyclostremella are' 

 established. 



THE NON-MARINE MOLLUSCS OF ESSEX. By Wilfred Mark 

 Webb. Reprint from The Essex Naturalist, Vol. X. pages 27-48 

 and 65-81, 1897. 



