FAMILY TURBINIDA — MELANIA. 95 
solete revolving réddish lines. Length, 1-1; diameter, 0°4. One of the largest of the 
genus. Ohio. 
M. conica. (Say, Ac. Sc. Vol. 2, p. 176.) Shell conic, rapidly attenuating to an apex, very 
slightly wrinkled: suture not deeply impressed. Whorls 7-8; aperture oblique, equalling 
the second, third and fourth whorls together. Color, olivaceous, occasionally with one to 
three revolving rufous or blackish lines. Length 0:6. An anculotus? Ohio river. 
M. nickléniana. (Lea, Am. Phil. Tr. Vol. 8, p. 171, pl. 5, fig. 18.) Shell smooth, obtusely 
conical, solid; sutures impressed; whorls six, slightly convex ; aperture large, somewhat 
rounded. Color, very dark, occasionally banded ; aperture purple. Length, 0°45; diameter, 
0°27. Virginia. 
M. viridis. (Id. l.c. pl. 5, fig. 19.) Shell-smooth, subfusiform, rather thick ; spire short, ob- 
tusely conical; sutures linear; whorls 5, somewhat convex ; aperture ovate, rather large. 
Color, green; aperture-white. Length, 0°32; diameter, 0°27. Ohio. 
M. occidentalis. (In. 1. c. pl. 5, fig. 20.) Shell smooth, subglobose, rather thick; spire short, 
pointed ; sutures linear ; whorls four, rather convex, occasionally with raised revolving strie ; 
aperture large, ovate, nearly three-quarters of the total length. Color, green ;- within purple 
or white. Closely allied to the M. subglobosa of Say. Length, 0°37; diameter, 0°3. Ohio. 
M. globula. (Iv. |. c. pl. 5, fig. 22.) Shell very small, smooth, subglobose ; spire short; sutures 
impressed ; whorls four, rather convex; aperture large, nearly two-thirds of total length, 
nearly round. Color, dark brown, with two darker revolving bands; aperture bluish. 
Length, 0°25; diameter, 0.22. Tennessee. 
M. altilis. (Ip. 1. c. pl. 5, fig. 23.) Shell smooth, subglobose, thick ; spire short; sutures small ; 
whorls four, obtusely angular above ; aperture large, nearly-round. Color,-pale horn. Length, 
0°32; diameter, 0°27. Maryland, South-Carolina. 
M. strigosa. (Iv. |. c. pl. 5, fig. 24.) Shell smooth, acutely turreted, thin, striate above; spire 
drawn out; sutures: impressed; whorls 9, flattened ; aperture. small, -elliptical, angulated at 
the base. Color, pale yellow; bluish within. Length, 0°85; diameter, 0°27. 
M. virgata. (Iv. l.c. pl. 5, fig. 25.) Shell smooth, rounded, rather thin, shining; spire short; 
sutures linear; whorls convex; aperture half the total length, elliptical. . Color, yellow, with 
two broad bands. Length, 0°3; diameter, 0°2. Tennessee. 
M. tenebrosa. (In. 1. c. pl. 5, fig. 26.) Shell smooth, conical, rather thick; spire rather elevated ; 
sutures impressed ; whorls flattened; aperture rather large, elliptical, angular at the base. 
Color, nearly black; within bluish. Length, 0°72; diameter, 0°3. Tennessee. 
M. cincinnatensis. (Lea, Am. Jour. Vol. 38, p. 175; Am. Phil. Tr. Vol. 8, p. 190, pl. 6, fig. 58.) 
Shell minute, much depressed, compressed beneath, bicarinate, with an acute apex ; whorls 
four; aperture subrounded. Color, fuscous, trifasciate. Length; 0°16; diameter, 0°14. 
Cincinnati. 
M. comma. (Conran, op.cit. pl. 8, fig. 7.) Shell subulate, much elongated, slender. Whorls 
8 -— 9, flattened, indented at the sutures, with longitudinal distant slightly arcuated ribs, dis- 
appearing on the lower whorls; lip thin; aperture elliptical, produced at the-base. Color, 
olive, with a dark band above the middle of each whorl. Alabama. 
