——————eee ——EEE 
106 THE NAUTILUS. 
proportion of blues among them than the corresponding shells 
in the Upper Ohio Drainage. 
Light PRopucTIon In CepHALopops. By S. Stillman Berry 
(Biol. Bull., 1920, Vol. 28, pp. 141-195). An Introductory 
Survey. 
Nores ON SoME UNDESCRIBED CALIFORNIAN HeEtices. By S. 
Stillman Berry (Proc. Cal. Acad. Sci., 4 ser., Vol. 10, pp. 53- 
70, pls. 4-6, 1920). Five new subspecies of Epiphragmophora 
are described and figured. 
Fosstt MOLLUSKS FROM THE JOHN Day Basin IN OREGON. By 
G. Dallas Hanna (Univ. Oregon Publication, Vol. 1, No. 6, 
1920). Two new species are described and figured. 
REPORT OF CEPHALOPODS CoLLECTED Durine 1906 By THE 
U. S. Bureau or FIsHERTES STEAMER ‘‘ ALBATROSS’? IN THE 
NoRTHWESTERN PaciFic. By Madoka Sasahi (Prac. U. S. Nat. 
Mus., Vol. 57, pp. 163-203, pls. 23-26, 1920). The paper 
contains descriptions of 18 new species, three new genera Wata- 
sella, Chunella and Gonatopsis, and two new families Watasellidae 
and Eledonellidae.—C. W. J. 
A MonoGRAPH OF THE East AMERICAN ScaPpHopop MouLuusks. 
By John B. Henderson (U. 8. Nat. Mus., Bull. ILI, 1920, pp. 
1-177, pls. 1-20). This excellent monograph is based upon 
the material contained in the National Museum, including much 
dredged by the author, together with the American Scaphopods 
of the Philadelphia Academy and the Mus. Comparative Zoology. 
Practically all of the East American material extant has there- 
fore been studied. The classification is that of Pilsbry and 
Sharp, with the addition of a new subgenus of Cadulus : PLaty- 
SCHIDES, type C. grandis Verrill. 
The specific distinctions of these simple shells are worked 
out with admirable clarity, in the descriptions and keys for de- 
termination. All of the species and subspecies are illustrated. 
98 species, about one-third of them new, with numerous sub- 
