GONIOBASIS. 



141 



Fig. 2G0. 



spiral acute tuberculated lines, one or two only on each whorl of the 



spire, and about four on the body-whorl, the inferior one 



plain ; aperture elliptical. 

 Fig. 2G1. ^ ' ^ 



Ohservatiuns. — Inhabits rocks in the Black War- 



O rior River, south of Blount's Springs, Alabama, 



and is very abundant. It is remarkable for its 



distant tuberculated lines. Young specimens are olive, 



with a purple band on each whorl, and are without 



tubercles ; the body-whorl is angulated, and carinated. 



It is named in honor of Mr. William Hyde, an industrious and excel- 

 lent conchologist. — Conrad. 



Fig. 262. 



4. G. decorata, Anthony. 



Melania decorata, Anthony, Proc. Acad. Nat. Sci., p. 55, Feb., 1830. Reeve, Monog. 



Melania, sp. 251. Binney, Check List, No. 83. Bkot, List, p. 32. 

 Goniobasis Tryoniana, Lea, Proc. Acad. Nat. Sci., p. 272, 18G2. Jour. Acad. Nat. 



Sci., V, pt. 3, p. 342, t. 38, f. 207, Marcli, 1863. Obs., ix, p. 164, t. 38, f. 207. 

 Goniobasis granata, Lea, Proc. Acad. Nat. Sci., \>. 272, 18G2.- Jour. Acad. Nat. Sci. 



T, pt. 3, p. 343, t. 38, f. 209, March, 18G3. Obs., ix, p. 165. 



Description.— ^heW short, thick, ovate ; whorls about five, but trun- 

 cate as to show only two or three remaining; whorls prominently 

 ribbed and intersected by revolving striae, forming nodules 

 where they cross each other; dark bands also revolve 

 around the whorls, giving them a highly decorative appear- 

 ance, columella often thickened by a callous deposit ; sinus 

 small. 

 Habitat. — Oostenaula River, Georgia. 

 Observations. — I collected some two hundred specimens of this 

 species in Oostenaula River, Georgia, in 1853, I then supposed they 

 Fig. 263. would prove to be merely the young of M. adatiira, Conr. 

 Closer examination and comparison, however, have convinced 

 me that they are not identical. Many of the specimens are 

 decidedly mature, and differ from cxtlatura by the greater 

 regularity of their folds, which are also interrupted I)y a 

 revolving raised line near the sutures, and by their dark bands and 

 less elongate form; cannot well be compared with any other.— 

 Anthony. 



The following are the descriptions of the species believed to 

 be synonymes. 



