Tur N@erTicus. 
Wir, SIE NOVEMBER, 1897. No. 7. 
NEW SPECIES OF MEXICAN LAND SHELLS. 
BY W. Ha DALL. 
Helix (Lysinoe) Queretaroana n. sp. 
Shell large, rugose, with a pale yellow-brown periostracum over a 
livid whitish, finely granular surface; whorls five, sloping above, 
with a well marked suture, to a rather elevated narrow apex ; below 
rounded ; nuclear whorl and a half smooth, perhaps with micro- 
scopic punctuations when unworn; the rest of the surface rugose 
from irregular incremental lines and densely covered with minute 
rounded pustules; apex with a few darker flecks on the whitish 
ground, but otherwise the shell is destitute of color pattern and 
entirely without banding ; aperture ample, oblique, outer lip simple, 
not reflected, internally somewhat thickened by a livid rose-colored 
callus; inner lip rose color, reflected, nearly covering a small 
perforate umbilicus; throat brownish, deeper just below the suture 
on the body whorl, a thin callus connecting the somewhat incurved 
outer lip with the pillar; base — rounded. Alt. 37, max. 
diam. 39, min. diam. 32 mm. 
Pinal de Amoles, Queretaro, Mexico, E. W. Nelson. 
This fine species is related to H. Humboldtiana, from which it is 
easily distinguished by its color, more pointed spire and less de- 
pressed apex. The rose color of the interior becomes less bright 
with time. 
Helix (Lysinoe) sebastiana n. sp. 
Shell large, moderately depressed, of four and a half whor!s, with 
a well marked suture; nepionic whorls two, smooth, plum colored ; 
