IIF.I, IX. —Plate CLXXVl. 



Otthi's Helix. Shell umbiliciitcd, depressed, somewhat 

 lens-shaped, keeled, white, striated ; spire eonvex, 

 slightly erenulated at the suture ; whorls five, rather 

 flat, inereasing slowly, the last a little detleeted in 

 front ; aperture ver}' oblique, rotundately lunar, 

 slightly angled, lip simple, partially covering the 

 umbilicus. 



b'oRBEs, Ann. and Mag. Nat. Hist. vol. ii. p. 25U. 

 HHix Jeannoliana, Terver. 



Had. Bugia, North Africa. 



A comparatively smooth chalk-whiti- siiell, witii a deli- 

 cate sutura! keel throughout. 



Species 1204. (Mus. Pleiffer.) 



Helix akietina. Ilel. ie.sfd aHyuMi unMlicatd, depn-nm, 

 mlUiidd, oblique slriald, lineis conffrtix impraisU spi- 

 ralibm suUiliter reticulatd, opaco-aWd, cakared, fas- 

 cm lutein latin lineisque fmciti nontntUiis ornaid, acute 



carinatd, cariiui compresid; spirdpnrum elevatd ; an- 

 fractUjm quiiique, siiperni nubplanulatis, exser/tji. ul- 

 timo autici detceiidente, basi couvexo ; aperturd lunatu- 

 ■lecuriformi, lahro recto, acuta, intus talidi laiinlo. 

 margitiv columellari lali rejlexo. 



The eam-head Heli.x. Shell narrowly umbilicatcd, de- 

 pressed, rather solid, obliquely striated, finely reticu- 

 lated with close-set impressed spiral lines, opake- 

 white, chalky, ornamented with a few broad yellow 

 bands and brown lines, sharply keeled, keel com- 

 pressed ; spire but little raised ; whorls five, rather 

 tiat at the upper part, exserted, the last descending 

 in front, convex at the base ; aperture lunar hatchcl- 

 shaped, lip straight, sharp, strongly edged within, 

 columellar margin broadly reflected. 



RossMASLER, Zcitschrifl fiir Malac. 1846, p. 172. 



Ilab. Sierra of St. Cristoval, Spain ; Dr. WiUkomm. 



Chiefly distinguished by its flatly-raised spiral sutural 

 keel and minute umbilicus. 



