BARTSCH: NEW ENGLAND PYRAMIDELLIDAE. 73 
It has eight post-nuclear whorls and measures: length, 5.1 mm.; 
diameter, 1.5 mm. 
The shells of all our specimens show more or less erosion, even those 
taken alive. 
The following specimens have been examined : — 
Cat. no. 
Locality. 
Disposition of material 
64,.357a 
Fairhaven, Mass. 
U. S. nat. mus. 
90,326 
Massachusetts Bay 
U It il 
203,741 
Branford R., Conn. 
" " " 
203,742 
AVood's Holl, Mass. 
" " " 
Pyramidella (Syrnola ?) fusca (C. B. Adams). 
PL 11, fig. 4. 
Pyramis fusca C. B. Adams, Boston journ. nat. hist., vol. 2, p. 282, pi. 4, 
fig. 9, 1839. 
Shell broadly elongate-conic, light brown, semitranslucent (nuclear 
whorls decollated in all our specimens). Post-nuclear turns well 
rounded, appressed at the summit, marked by rather strong irregular 
lines of growth and numerous exceedingly fine microscopic spiral 
striations. Sutures well marked. The preceding whorl shining 
through the shell at the summit lends this the aspect of having a double 
suture. Periphery of the last whorl well rounded. Base somewhat 
inflated, rather prolonged, well rounded, marked like the space be- 
tween the sutures. Aperture rather large, ear-shaped, somewhat 
effuse anteriorly, posterior angle acute; outer lip thin, columella 
slender, twisted and revolute, the reflected portion forming a narrow 
umbilicus. A moderately strong, oblique fold is situated a little 
below the insertion of the columella. Operculum very thin, pauci- 
spiral. 
The specimen described, cat. no. 107,063 U. S. N. M., was collected 
by C. B. Adams at New Bedford, Mass. It has seven post-nuclear 
turns and measures: length, 5.5 mm.; diameter, 2.1 mm. 
The following specimens have been examined: — 
Cat. no. Locality. Disposition of material. 
83,401 Massachusetts Bay U. S. nat. mus. 
64,357 Fairhaven, Mass. " 
107,063 New Bedford, " 
202,867 Wood's Holl, " 
203.743 NaushonI'd, " 
203.744 Branford R., Conn. 
