NATURAL SCIENCES OF PHILADELPHIA. 189 



Glandina corneola. Testa conico-oblonga, tenuis, nitens, cornea ; anfr. 7 

 ad 8, convexi, tenuissime et longitudinaliter striati, et lineis niinutis creber- 

 rimis notati ; sutura crenulata; apeitura oblonga, partem testte tlimidiani 

 aequans ; columella contorta, truncata, callo induta. Diam. 18 ; long. 50 mill. 



Si/n. Glandina truncata, var. Hiuncy non Gniel. Terr. Moll. iii. pi. Ixi. f. 1. 



Habitat in Ilebuspublicis meridianis. Florida? 



Shell oblong-conic, thin, shining, horn color ; whorls 1 to 8, longitudinally 

 striate, and covered with numerous minute revolving lines ; suture slightly 

 crenulatcd ; aperture oblong, half as long as the shell ; columella curved, trun- 

 cated, covered with light callus. 



This shell, very rare in collections, is distinguished bj' its light horn color, 

 thin shell and revolving lines. 



Glandina parallela. Testa solida, albida, nitens, cylindraceo-elongata, 

 striis crebcrrimis longitudinalibus notata; spira elevato-obtusa ; anfr. 5 ad 6, 

 superi convexi, ultimus lateribus rectis, acquis intervallis inter se distantibus, 

 apertura angusta, partem testic 3-7 aequans ; labrum flexuosum, in medio rec- 

 tum, margine basali curvatum ; columella recta, truncata, callo induta. Diam. 

 20 ; long. 56 mill. 



Sy?!.. Glandina truncata, var., Binney. Terr. Moll. iii. p]. Ixii. f. 2. 



Habitat in Louisiana, Rev. E. R. Beadle ! 



Shell heavy, shining, white, elongated, cylindrical; spire elevated, obtuse : 

 whorls 6 to 7, with numerous, delicate, longitudinal striae, the upper ones con- 

 vex, the last one with straight parallel sides ; lip straight along the middle, and 

 parallel to the rectilinear side of the opposite whorl, at the basal extremity 

 curved ; columella straight, truncated, covered with a heavy callus. 



Distinguished by its peculiar parallel sides and heavy texture from any other 

 described species. 



The following are notes on the plates contained in Vol. iii. of the Terres- 

 trial Mollusks. 



Helix Rugeli, Shuttleworth, (Diag. neuer Moll. No. 2,) is described as al- 

 ways larger than H. inflecta. Say. I have the latter of the same dimensions as 

 given for Rugeli, 13 mill., and some specimens of Mr. Shuttleworth's shell only 

 8 mill. 



Helix mordax, Shuttleworth, is a variety of H. alternata, Sa3\ I have a 

 large series, showing a gradual change from the typical Northern Shell to the 

 strongly ribbed and more or less carinated Southern form. H. strongolydcs, 

 Pfeiffer, is also a variety of the same shell. Perhaps, also, H. infecta, Parr. 



Helix multiline.ata. Say. I have a variety of this with an open umbilicus. 

 Another, received from Mr. J. A. Lapham, of Wisconsin, is small, of an uniform 

 brownish-red, without a.'iy revolving lines. 



Helix clausa. Say. Terrestrial Mollusks, pi. iv. The outline figures do not 

 represent this species. 



H. viNCTA, Val., Terr. Moll. iii. pi. vi., is certainly distinct from Californien- 

 sis, Lea. (Compare his fig. and descr. T. Am. Ph. Soc. vi. pi. xxiii., f. 79.) 



The centre figure of this plate is H. intercisa, nob. Proc. A. N. S. Phila., 1857. 

 p. 18. Fig. 1. Upper and lower figure cannot be considered a variety of Nickli- 

 niana. I propose for it the name oi redimila. 



PI. vi. a. The European conchologists now consider H. Nickliniana and 

 Oaliforniensis as identical, and figure this shell under the latter name. 



H. DEJJTiFERA is not Confined to Vermont. It is a mountain shell, has been 

 found by Mr. Edwards in Virginia, Dr. S. E. Shurtleff in Western Pennsylvania, 

 Mr. Conrad at Broad Top Mountain, and Mr. Phillips on the Lehigh. 



1857.] 



