SCALAKIA.— Plate V. 



spirally single riblied bolow the middle; varices 

 laminated, broad, joined at the suture, continued 

 obliquely on the spire. 



Linnaeus. Systema Naturse. 



Scalaria lamelhsa, Lamarck. 



Scalarin monocycla^ Keiner. (var.) 



Hah. Mediterranean. West Indies. 



Species 34. (Fig. a, b, Mus. Brit.) 

 ScALAiM.4 CORONATA. Sca. tcstd vmtricosd, inter varices 

 maculis regularihus triseriatim dispositis ornatd, 

 imperforatd ; anfractibus numerosis, contirpiis ; 

 ultimo anfractu infra medinm spiraliter unicos- 

 tato ; varices laminatis, numerosis, latis, ad suturam. 

 Jwictis, super spiram ohliqu!; continvls. 

 The crowned Scalaria. Shell ventricose, ornamented 

 with regular spots disposed in three rows be- 

 tween the varices, imperforate ; whorls numerous, 

 contiguous ; last whorl spirally single ribbed 

 below the middle ; varices laminated, numerous, 

 broad, united at the suture, oblique, continued on 

 the spire. 

 Lamarck. Animaux sans Vertcbres. 

 Hob. West Indies. 



More ventricose than Scalttiia rlathnis, and beau- 

 tifully ornamented by series of spots between the 

 varices. 



Species 35. (Mus. Brit.) 



Scalaria granulata. Sca. testa pyramidatd, minu- 

 tissime yranulat'i, fvlvA, rarissinie varicosd, alba 

 unifasciatd ; anfractibus declivibus, ad suturam 

 cmivlatis ; aperturd subtrigond, labia inta-nu 

 crasso, infra angulato. 



The granulated Scalaria. Shell pyramidal, very 

 minutely granulated, fulvous, very rarely vari- 

 cose, with a single band of white ; whorls sloped, 

 crenulated at the suture ; aperture subtrigonal, 

 inner lip thick, angular beneath. 



QuoY ET Gaimard. Voyage de FAstroIabe. 



Hab. Swan River, Australia. 



Species 3G. (Mus. Brit.) 



Scalaria Georgettina. Sca. testd pyramidatd, alba, 

 tenui, imperforatd ; anfractibus contiijuis. rntun- 

 ddtis ; varicilms tenuibvs, rotundciti^. imiii/ ra.vi.i, 

 <iiii/ii.<li.<<imi.?. vix continuis ; apertuti'i m-dtn. 



The (^EORGETTiNA ScALARlA. Shell pyramidal, wliite, 

 thin, imperforate; whorls contiguous, rounded; 

 varices thin, numerous, very narrow, scarcely 

 continuous ; aperture ovate. 



Reiser. Iconographie. 



Ilab. ? 



The varices are more roundrxl than in Scalaria 



