HELIX. 253 



will separate the species from the preceding and following forms, 

 which seem to be its nearest allies. The description given by 

 Ffeiffer here follows : 



H. cavata Mousson, (pi. 57, fig. 28.) Imperforate, ovate-globose, 

 rather solid, striatulate, dull white, with weak grayish bands ; spire 

 conoidal, obtuse ; whorls 4, slightly convex, the first minute, last 

 elongate-inflated; aperture large, oblique, lunate-oval, grayish within; 

 peristome straight, the right margin sublabiate within, columellar 

 margin thickened, slightly arcuate, arcuately reflexed, broadly 

 adnate. Diam. 31, alt. 26 mill. (Pfeiffer.) 



Palestine. 



H. ENGADDEXSIS Bourguigiiat, 1852. PI. 57, %. 25. 



Imperforate, turbinate-globose, striate, brownish-white, with five 

 brown bands (the second and third confluent); whorls 4, slightly 

 oon vex, the first smooth, brown, the last very large, inflated, equalling 

 v the entire altitude ; columella oblique, whitish ; aperture oval, 

 much higher than wide, peristome simple, acute ; columellar margin 

 dilated, reflexed, appressed. Alt. 35, Diam. 32 mill. ; aperture, 

 Diam. 18, alt. 28 mill. (Bourguignat.) 



Dead Sea, in arid situations ; Jerusalem. 



H. PYCNIA Bourguigiiat, 1860. PI. 59, figs. 47, 48. 



Imperforate, ventricose-globose, thick, cretaceous, whitish, irregu- 

 larly striate; whorls 4o, convex, rapidly increasing, penultimate and 

 last large, globose ; body-whorl slightly descending at the aperture; 

 aperture lunate, nearly rotund; peristome white, thickened, not 

 reflexed, acute; columella thickened, the margins joined by a thick 

 white callus. Diam. 33, alt. 32 mill. (Bourguignat.) 



Environs of Nazareth. 



H. GODETIANA Kobelt, 187*. PI. 69, figs. 24,25. 



Imperforate, turbinate-globose, inflated, rather thin, but strong, 

 coarsely striate, especially at the sutures ; decussated by fine spiral 

 lines, shining, dark grayish jellow, with indistinct broad chestnut 

 brown bands, which usually leave only a narrow space between, or 

 are entirely confluent, leaving only clear subsutural and circum- 

 umbilical tracts ; spire short conoid, with conspicuous large blunt 

 apex ; suture deeply impressed, distinctly crenulated; whorls scarcely 



I the upper slightly convex, the last inflated, at first gradually, 

 en more strongly deflected anteriorly ; aperture oblique, lunate- 

 rcular, the peristome simple, the margins scarcely converging, 



