THE NATURAL HISTORY SURVEY. 323 
Melania elongata LEA, Trans. Amer. Phil. Soc., Vol. IV, p. 121, pl. xv, 
fig. 29, 1834. 
Shell: Elevated, acute, turreted on the upper whorls; 
color yellowish-horn, olivaceous or greenish-horn, encircled by 
a yellow band just below the suture, and with two purplish 
bands encircling the whorls just above and below a line drawn 
about the center of the whorl; apex sharp; surface shining and 
polished, encircled by from three to five fine spiral raised lines, 
of which the lower one is the larger, situated just above the 
suture, giving the shell a carinated aspect; this carina is espe- 
cially noted at the periphery; the base of the shell is encircled 
by five spiral ridges of greater or lesser prominence; lines 
of growth numerous, crowded, oblique, giving the surfacea 
wrinkled aspect; sutures impressed; whorls ten to eleven, flat 
sided, regularly increasing, the upper ones doubly carinated 
and the lower ones with a single carina, although in some ex- 
amples the carina almost disappears on the lower whorls; spire 
very long, long-conic; base of shell broadly conic, angulated, 
imperforate; aperture obliquely triangulate, produced at the 
lower part into a short spout; yellowish-horn within, with a 
broad, reddish-brown band encircling the base near the col- 
umella and descending the spout-like projection in the lower 
part of the aperture, with another band near the center; peri- 
stome thin, sharp, simple, sinuous; columella thickened by a 
heavy white callus which is reflected over the columellar region 
and columellar lip. Operculum similar to that of subulare. 
menety, 21.00; width, 8.00; Speetare length, 8.00; width, 4.00 mill. (8743.) 
22.00; “ 8.50; . 7.60; “ 4,00 “ (8740.) 
ef BLOOD: 4°) 4. 12,003 is “i 8.00; “ 4.00 “ (8748.) 
* 39.00; ‘“ 12.00; se i yt AUD ht ee alee. (Oaee,) 
¥s vi S.) eeia 9.50; sf He 9.50; “ 4.50 ‘“ (9966.) 
Animal; Similar in general form to sudulare; color yel- 
lowish, streaked with black. on top of rostrum and foot; the 
rostrum is rather long and much roughened by spiral ridges; 
foot wide, short and whitish beneath; eyes placed on swellings 
on the upper surface of the base of the tentacles. The speci- 
mens examined were mostly females, with the lateral sinus 
very prominent. 
Faw. As in subulare. 
Radula formula: ~¢taqig ttts-teetiteotet 3-—! 
—3); teeth generally as in swbu/are,; the intermediate tooth has 
five outer cusps instead of three, as in swbudare; the inner lat- 
