THE NAUTILUS. 69 
other changes mentioned were surely essential to progress. We 
might even recall that Morse himself threw a grenade into the 
nomenclature of land and fresh-water shells in his Maine Cata- 
logue of 1864.—H. A. P. 
Descriptions oF New Species oF MOLLUSKS OF THE FAMILY 
TURRITIDAE FROM THE West Coast oF AMERICA AND ADJACENT 
Regions. By Wm. H. Dall (Proc. U. S. Nat. Mus., Vol. 56, 
pp. 1-86, pls. 1-24, 1919). A very exhaustive faunal work on 
this family. Over 200 species are considered, of which 181 are 
new. The illustrations are excellent, many of Carpenter’s 
species being figured for the first time. In regard to the family 
name Dr. Dall says: ‘‘Some question having been raised as to 
the spelling of the family name which I have retained as first 
proposed by Henry and Arthur Adams in 1853, I submitted 
the question of Turridae versus Turritidae to two expert Latin- 
ists, who after due consideration of all the data, concluded that, 
while either was correct, the latter term under the circumstances 
was to be preferred.’’ 
PELECYPODA OF THE St. MAURICE AND CLAIBORNE STAGES. 
By G. D. Harris (Bull. Amer. Paleontology, Vol. 6,1919). A 
valuable contribution to American Paleontology. The work 
contains 268 pages and illustrated by 59 plates, every species 
and variety being figured. About 250 species and varieties are 
described, of which more than 50 are new. Two new sub- 
genera—Mauricia and Pachecoa are proposed. The work is 
dedicated by the author to the Hon. Truman A. Aldrich. 
SEXUAL ACTIVITIES OF THE Squip, Loligo pealii (Lea). By 
Gilman A. Drew (Journal of Morphology, Vol. 22, No. 2, and 
Vol. 32, No. 2). An extremely interesting and well illustrated 
account of phenomena rarely observed. The second paper deals 
with the structure and activities of the spermatophore. The 
observations were made upon specimens kept in aquaria at 
Woods Hole, Mass. 
