GONIOBASIS. 237 



thin, brown ; whorls about six, subconvex, often slightly augulated 

 near the suture below; sutures impressed; body-whorl not large, 

 a little angulated, ornamented with four very dark bands, the upper 

 and lower of which are distant, and the central ones approximate 

 or confluent ; aperture somewhat large, elliptical, banded within ; 

 columella regularly but not remarkably curved or indented, with a 

 small sinus. 



Habitat. — Tennessee. 



Diameter, -27 (7 millim.) ; length, -58 of an inch (15 millim.). 

 Length of aperture, -27 (7 millim.); breadth of apertui-e, '15 of an 

 inch (4 millim.). 



Observations. — A rather small species, which when once seen, will 

 readily be recognized afterwards. Compares with J/, sub- rig. 461. 

 angulata (nobis) ; it is less robust, more acute, and the 

 bands are of a totally different character; the texture is 

 quite thin, and the dark bands are distinctly seen in the 

 aperture, through the substance of the shell. It has some- 

 what of the club-shaped fomn of that group of shells of which M. 

 clavoeformis, Lea, and 31. castanea, Lea, are members, but is more 

 angular, and its dark bands and thin texture are prominent differ- 

 ences. — Anthony. 



*This may equal quadricincta, Lea, young. 



125. G. tecta, Anthony. 



Melanin tecta, Anthony, Ann. N. Y. Lye. Nat. Hist., vi, p, 105, t. 3, f. 4, March, 

 1854. BiNNET, Check List, No. 2G5. Brot, List, p. 37. Reeve, Monog. Mela- 

 nia, sp. 253. 



Goniobasis macella, LEA, Proc. Acad. Nat. Sci., p. 270, 1862. Jour. Acad. Nat. Sci., 

 V, pt. 3, p. 333, t. 38, f. 192, March, 1863. Obs., ix, p. 155. 



Description. — Shell conical, thin, brown; spire elevated; whorls 

 7-8, flat, with a distinct, but not elevated carina on each at its lower 

 Fig. 4C2. edge, near the suture; sutures very deeply impressed; ap- 

 erture oval, within reddish and lightly banded; columella 

 curved, sinus small. 

 Habitat. — Ohio. 



Diameter, -20 (6i millim.); length, '60 of an inch (1.5 mil- 

 lim.). Length of aperture, -23 (6 millim.) ; breadth of aperture, -14 

 of an inch (3i millim.). 



0'/se?'i-««io«o\— May be compared with 21. pulcheUa, Anth., but is 



