HELIX. 211 



Var. SPLENDENS Maltzan. 



Differs from the type in the distinctly conoidal shell, last whorl 

 subcompressed, trifasciate, aperture narrower. 



Diam. 17, alt. 11 mill. Dorgali, Sardinia. 



Var. MINOR Maltzan. 



Shell much smaller. Diam. 14'., alt. 9J mill. 



Dorgali, Sardinia. 



H. PLATYCHELOIDES Kobelt, 1881. PI. 54, figs. 9-12. 



Covered umbilicate, conoid, spire exserted, striatulate, scarcely 

 shining, solid, white or encircled by five castaneous bands ; whorls 

 5, somewhat convex, separated by linear, distinct sutures, regularly 

 increasing, the last inflated, anteriorly abruptly deeply deflexed ; 

 aperture very oblique, irregularly ovate, slightly lunate; peristome 

 labiate with white, the margins considerably converging and joined 

 by a distinct callus, upper margin expanded, outer and basal re- 

 flexed, basal margin wide, distinctly expanded above the umbilicus, 

 armed with a straightened callus or subdentiform fold within. 



Diam. 24, alt. 17 mill. 



Mts. of Beni Hosemar, Morocco. 



This species sustains the same relation to H. sicanoides that the 

 Sicilian platychela bears to sicana. It differs from platychela (to 

 which many examples are very similar in outline) in the constant 

 presence of an umbilicus, the less reflected peristome and the pecu- 

 liar apex. (Kobelt.) 



H. BOETTGERI Kobelt, 1881. PL 54, figs. 27-29. 



Covered rirnate, depressed conoid, solid, striatulate, microscopic- 

 ally granulate, but not so distinctly spirally striate as If. tetuanenxis, 

 whitish, or yellowish-green, variously painted with bands and flam- 

 mules of brownish ; whorls 5, the first two forming a projecting 

 apex, the following less convex, the last somewhat inflated, deeply 

 deflexed anteriorly ; suture linear, impressed ; aperture very oblique, 

 transverse-oval, the peristome acute, thin, strongly labiate with 

 white, the margins converging, and joined by a thin callus, the 

 upper expanded, outer slightly and basal distinctly reflexed over 

 the rimate umbilicus, bearing inside a straight or dentiform callus. 



Diam. 20-21, alt. 13* mill. 



Mt#. Beni Hosemar, near Tetuan, Morocco. 



