280 HEL1CINA. 



27. Sprucei, Pfr., (f. 44.) — Quam sp. 25 spira magis conica. 

 — Spire more conical than sp. 25. 



28. electrina, Pfr., (f. 45.) — Semipellucida.- — Half-trans- 

 parent. 



29. megastoma, C. B. Ad., (f. 46, 47, 48.)— Sinu parvo.— 

 Sinus small. 



30. laciniosa, Migkals, (f. 49.) — Labro vix sinuate — Outer 

 lip scarcely notched. 



31. incrustata, Gundl., (f. 50.)— Labro ante columellam pro- 

 ducto. — Outer lip produced in front of columella. 



32. rotunda, Orb., (f. 51, 52.) — Quam sp. 29 magis glo- 

 bosa. — More globose than sp. 29. 



33. succinea, Pfr., (f. 53.)— Semipellucida. — Half-trans- 

 parent. 



34. retracta, Poey, (f. 54, 55.) — Columella subretracta. — 

 Columella rather drawn back. 



35. stjbfusca, Menlce, (f. 56, 57.) — Depressa, labro acuto. — 

 Depressed, outer lip sharp. 



36. dubiosa, C. B. Ad., (f. 58, 59.)— Columella trigona.— 

 Columella trigonal. 



37. intusplicata, Pfr., (f. 60, 61.) — Post columellam pli- 

 cata. — A plait behind columella. 



38. littoralis, Gundl., (f. 63, 64.) — Sinu parvo. — With 

 small sinus. 



39. maxima, Sowb.,(L 62.) — Depressa, apertura magna. — De- 

 pressed, aperture large. 



Sect. II. Aperlurd fere Integra, supra et infra sinuatim cuneatd, 

 operculo lirostraio. — Genus Schiascheila, Shuttleworth. 



The three known species composing this little section differ 

 from other Helieium in the form of the operculum, which is 

 beaked at each extremity, in the existence of a sinus in the peri- 

 treme at each end to receive the beaks, and in the columella being 

 partly separated from the body whorl. These characters are in- 

 teresting, although scarcely definable and exclusive enough to be 

 considered of generic importance. 



40. Nicholetti, Shuttl., (f. 67.) — Subconica, seriatim ciliata. 

 — Subconica], ciliated. 



