141 
Shell oblong-conic^ tapering, naore or less tinged with rufous ; 
whirls eight or ten, without much convexity, with elevated, 
numerous revolving lines, about fifteen on the body whirl and 
five on those of the spire ; suture of the spire impressed, often 
indistinct ; of the body whirl very deeply indented ; apex with a 
small truncation ; labrum near the base not remarkably pro- 
duced ; base without any rudiment of a sinus ; body whirl slightly 
ventricose. 
Length, one inch and one-fourth. Grreatest breadth, eleven- 
twentieths. 
It was sent to me from Mexico by Mr. Wm. Maclure. It may 
be distinguished from multilineata, Say, by its superior magnitude, 
gTeater elevation of the striae, less prominence of the labrum near 
the base, &c. 
Melania nupera. — Oblong-oval ; volutions five, slightly 
rounded ; body whirl with about three revolving series of sub equal, 
equidistant, subacute granules or tubercles not higher than wide, 
occupying the superior half of the surface ; second volution with 
but two series, remaining volutions with slightly elevated, longi- 
tudinal lines, instead of tubercles ; but these are often obsolete ] 
spire towards the tip decorticated ; suture not deeply impressed ; 
aperture longer than the spire ; sinus of the superior angle pro- 
found ; labrum concave, with a callus near the superior angle ; 
columella with a slight, obtuse, hardly prominent angle above the 
sinus, which is obvious ; labrum not abbreviated above, nor much 
produced near the base. 
Length, four-fifths ; breadth, less than half an inch. Inhabits 
the Wabash Liver. Yar. a. Body whirl with but one series of 
of tubercles. Yar. h. Body whirl with four or more series of 
tubercles. 
This species is common in the Wabash Liver. The spire is 
almost invariably so completely decorticated towards the apex, 
that no trace of the longitudinal lines remains ) in the young 
only are these lines distinct, and even in these they are frequently 
' wanting. 
Melania cancell at a. — ^Shell rather slender, attenuated ; 
volutions convex, with about twenty-six reclivate, longitudinal, 
elevated lines, crossed by about eighteen revolving ones, the eight 
or nine towards the base crowded. 
