THE NAUTILUS. 33 



THE DOLABELLINAE. By F. M. MacFarland (Mem. Museum 

 Comp. Zool., vol. 25, pp. 301-348, pis. 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 INDIAN FOSSIL LAND SHELL. By Paul Bartsch 

 (Proc. U. S. Nat. Mus., vol. 54, pp. 605-6, pi. 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 

 BARTSCH. 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 CONCHOLOGY, SEPT., 1918, VOL. 15, No. 10. 



The Pisidium Fauna of the Grand Junction Canal in Herts, and 

 Buck. By A. W. Stelfox, pp. 298-304, pis. 7-9. One new 

 species P. tenuilineatum. 



Descriptions of a new Zebina and a new Liotina. By J. R. le 

 B. Tomlin, p. 305, pi. 10. (Z. Us and L. cycloma, Japan.) 



Description of three new species of Mar ginella from South Africa, 

 with a note on M. sutoris Dunker. By J. R. le B. Tomlin, pp. 

 306, 307, pi. 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, 

 AUG., 1918, VOL. 13, PARTS 1 AND 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- 



