BARTSCH: NEW ENGLAND PYRAMIDELLIDAE. 69 
areolata, T. costulata — mighel.n, T. stricfa; 1880, T. rathbuni, T. 
formosa; 1881, T. smitJiii, EulimcUa ventricosa Forbes, Odostomia 
(Menestho) sulcata = morseana) 1882, Turbonilla emertoni, T. bush- 
iana — formosa, T. elegantida = elegans, Menestho bruneri; 1884, 
Eulimella lucida, E. chariessa, E. nitida. The last three must be 
referred to Eulima proper. 
There remains but one more work to be mentioned and that is 
Tryon's "Manual of conehology." In vokime 8, 1884, the Pyramid- 
ellidae are treated monographieally, and the following northeast 
American forms are diagnosed and illustrated: Odostomia impressa 
Say, 0. trifida Totten, 0. producta C. B. Adams, O.fusca C. B. Adams, 
O. dealbata Stimpson, 0. modesta Stimpson, 0. seminuda C. B. Adams, 
0. bisuturalis Say, Turbonilla emertoni Verrill, T. 7tivea Stimpson, 
T. rathbuni Verrill, T. elegans Verrill, T. areolata Verrill, T. mighelsi 
Verrill, T. interrupta Totten. 
Lack of time has kept us from gi\ing complete citations from the 
various local lists that have been published. In the present paper 
we have confined ourselves to the specimens at hand and to citations 
of literature necessary to a complete understanding of the nomenclature. 
^Ye wish to express our thanks to the U. S. national museum upon 
whose collections the present paper is largely based; also to the Phila- 
delphia academy of natural sciences and the New York State museum 
whose collections have been consulted. We have also had for study the 
large private collection of Rev. H. W. Winkley and the collections 
from the Wood's Holl laboratory, the latter through the courtesy of the 
Director, Dr. F. B. Sumner; to both these gentlemen we extend our 
appreciation. 
It is with pleasure, too, that we acknowledge indebtedness to Dr. 
W. H. Dall, honorary curator, Di\ision of mollusks, U. S. national 
museum, for assistance and kind advice in the preparation of this 
report. 
The illustrations were drawn by Miss Evelyn G. Mitchell. 
In the preparation of the present diagnoses the following terminoloo-v 
is used : — 
"Axial sculpture," the markings which extend from the summit of 
the whorls toward the umbilicus. 
The axial sculpture may be (1) "Vertical," when the markings are 
in general parallelism with the axis of the shell; (2) "Protractive," 
when the markings slant forward from the preceding suture; (3) 
"Retractive," when the markings slant backward from the suture. 
