PLEUROCERA. 93 



* 



Conr., but may easily be distinguished by its more numerous strife, 



its reddish color and the form of its aperture, which is more open. 



In the Brumhyi there is an autrle in the middle of 



Fig. 17C. 

 the whorl, which gives the aperture a, rhomboidal 



form. The columella is rufous and the channel whit- 

 ish. The apex of each of them being broken, the 

 number of whorls cannot be correctly ascertained. I 

 should suppose there were at least ten. Some of the 

 specimens here are beautifully granulate between the 

 stria?. The aperture is not quite one-fourth the length 

 of the shell. Along the suture, on the upper part of 

 the whorl, there is a line of a lighter color than the 

 other part. I dedicate this species to Prof. E. T. 

 Brumby, who has done so much iu bringing to light the interesting 

 shells of Alabama. — Lea. 



35. P. Currierianum, Lea. 



Tnjpanostoma Currierianum, Lea, Proc. Acad. Nat. Sci., p. 155, May, 1863. Jour. 

 Acad. Sat. Sci., vi, p. 147, t. 23, i. Gl, 1867. 



Description.— Carinate, very attenuate, with dark brown bands; 

 Fig. 177. spire very much drawn out ; sutures linear, scarcely ira- 

 ^ pressed; whorls about ten, flattened; aperture small, rhom- 

 boidal, banded within; outer lip acute, very sinuous : columella 

 whitish and very much twisted. 



Operculum ovate, reddish-brown, rather thick, with the 

 polar point near the base towards the left margin. 

 Habitat. — Florence, Alabama. 

 Diameter, -31 ; length, 1-2G? inches. 

 Observations. — I have soven specimens before me for examination, 

 none of which are perfect at the apex, and therefore the number of 

 whorls is somewhat uncertain. It is a well-characterized shell, all the 

 specimens being without any variation except in age. There are five 

 dark brown bands, the upper and lower being the broadest. The lower 

 two of the three iu the middle are on two revolving stria?. The 

 whorls above the body-whorls exhibit two of the five bands all the 

 way to the apex. In old individuals the outer lip is much expanded 

 and slightly thickened inside of the edge. It is allied to Mdania 

 Tr'jpanostoma elongata (nobis), but may easily be distinguished by 

 being more attenuate, smaller, thinner and in having five bands. 



