EASTERN PROVINCE SOUTHERN REGION SPECIES. 427 



taut, longitudinal ribs, of which there are from 20 to 30 on each whorl, 

 the iuterstices sculptured by very crowded lines; spire obtuse fig.47j. 

 at the apex and composed of about 8 flattish whorls, the last 

 of M'hich is about one-fourth the length of the shell and some- 

 what angular below the middle ; suture deeply impressed ; 

 aperture small, elongated, rhomboidal-ovate ; peristome sharp 

 and somewhat pressed inward, so as to be parallel to the 

 axis ; the columella is straight and joins the peristome at an 

 angle, so as almost to form a notch at the base of the aper- stcnof,i,ra 



fjraciUinia, 



ture. Length, T™'" ; diameter, If"'" ; aperture, 2'"™ long, 1""" '"'4 ^■J^g''^ 

 wide. 



Achaiiva graciUima, Pfeiffer, in "WiEGM., Arch., 1839, i, 352.— Binney, Terr. Moll., 



ii, 293, pi. liii, fig. 3. 

 Bnlimus graciUimus, Pfeiffer, Symb., iii, 54; Mod. Hel. Viv., ii, 160. — Reeve, Con. 



Icon., 594.— W. G. Binney, Terr. Moll.,iv, 134. 

 Jchatina strialo-costata, D'Orbigny, Moll. Cub., i, 176, pi. xi, figs. 19-21? 

 Melaniella graciUima, Tryon, Am. Journ. Couch., iii, 301 (1868). 

 Sttvogyra graciUima, W. G. Binney, L. & Fr.-W. Sh., i, 232 (1869); Terr. Moll., v, 



196. 



Cuba, St. Thomas ; also Bahamas ', introduced into the Florida Sub- 

 region, having been found on the keys and on the mainland near the 

 Miami River. 



Animal not observed. 



EXTRALIMITAL SPECIES OF STENOaYRA. 



Stenogyra (Suhulina) octona, Chemnitz, has been found in greenhouses, having been 

 introduced on plants. 



CffiCII^IAWJELLA, BouRG. 



Animal as in Ferussacia (p. 193), Blind. 



Shell elongate, imperforate, polished, vitreous, white, apex rather 

 obtuse; aperture equaling about one-half the shell's fig. 475. 



length, oblong, columella subarcuate, distinctly 

 truncated; peristome simple, acute. 



Within our limits it has only been accidentally 

 introduced. It is common among the West Indian "^^^'"''jReeYe.T"^" "' 

 Islands, in Europe, South America, &c. 



I bave not been able to examine thejaw or dentition of C. acicula, 

 the only species found in our limits. They are both well known, bow- 

 ever, from the descriptions and figures of Moquin-Tandou, Tbomson, 



