THE NAUTILUS. 33 
THe DoLABELLINAE. By F. M. MacFarland (Mem. Museum 
Comp. Zool., vol. 25, pp. 301-348, pls. 1-10, 1918). The 
systematic characters of the Opisthobranchiata, the bibliography 
of the described species of Dolabella and description of a new 
species Dolabella agassizi, is followed by a most extensive ac- 
count of its internal anatomy, beautifully and clearly illustrated. 
A New West Inp1an Fosstt Lanp SHELL. By Paul Bartsch 
(Proc. U. S. Nat. Mus., vol. 54, pp. 605-6, pl. 93). Pleuro- 
donte debooyi, from kitchen-midden deposits on Salt River, St. 
Croix. This is the flat-whorled form long known from St. 
Croix as P. caracolla. The same form occurs living in Vieques 
and some places in Porto Rico, such as Arecibo and Utuado. 
At Guayama and in the Sierra de Luquillo the whorls are not 
quite so flat, and it is rather difficult to say where the line is to 
be drawn between this race and typical P. caracolla.—H. A. P. 
On THE GENERIC PosITION OF SONORELLA WOLCOTTIANA 
Bartsco. By H. A. Pilsbry (Proc. Acad. Nat. Sci, Phila., 
p. 139, 1918). The soft part shows that it belong to genus 
Micrarionta.—C. W. J. 
THE JouRNAL oF ConcHoLoey, Sept., 1918, Vor. 15, No. 10. 
The Pisidium Fauna of the Grand Junction Canal in Herts, and 
Buck. By A. W. Stelfox, pp. 298-304, pls. 7-9. One new 
species P. tenuilineatum. 
Descriptions of a new Zebina and a new Iiotina. By J. R. le 
B. Tomlin, p. 305, pl. 10. (Z lis and L. cycloma, Japan. ) 
Description of three new species of Marginella from South Africa, 
with a note on M. sutoris Dunker. By J. R. le B. Tomlin, pp. 
306, 307, pl. 10. (M. aphanacme, M. ithychila, and M. atractus. ) 
Neritina fluviatilis at Chester. By W. H. Davies, p. 307, 
PROCEEDINGS OF THE MALACOLOGICAL SociETY oF LONDON, 
Ave., 1918, Vor. 13, Parts 1 anp 2. 
On the Radula of the genus Acanthina, G. Fischer. By the 
Rev. A. H. Cooke, pp. 6-11. A paper of special interest to the 
West Coast Conchologists. A new subgenus Acanthicella is 
proposed for A. punctulata Sowb. ,(=lapilloides Conr.); A. unicar- 
