BULLETIN OF THE 
Zonites sculptilis. 
Plate III. Fig. 9. 
For the sake of comparison with the preceeding species, I have given other 
figures here of the true Z. sculptilis. 
Zonites Simpsoni, PILSBRY. 
Plate I. Fig. 8, 
I give an enlarged figure of an authentic individual of this species. For 
the description see Third Suppl., p- 218. 
Zonites Diegoensis, HEMPHILL. 
Plate III. Fig. 2. 
Shell minute, umbilicated, thin, light horn-colored, with delicate incremental 
striæ, globose; whorls 34, convex; base swollen; suture deep; umbilicus broad ; 
aperture narrow, rounded ; peristome thin, acute, its ends approximated, the inner 
one slightly reflected. Greater diameter 34 mm., lesser 14; height 14 mm. 
Near Julian City, San Diego Co., California. On Cuyamaca Mountain, 4,500 
feet elevation. 
The above is Hemphill’s description. My figure is drawn from an authentic 
specimen. 
Zonites cuspidatus, Lewis. 
Vol. V., Fig. in text; Suppl., Plate II. Fig. C. 
Shell imperforate, small, slightly convex above, flattened below ; light horn 
color, shining; whorls 6, gradually increasing in size, with wrinkles of growth, 
the last not descending at the aperture; peristome thin, acute; aperture 
rounded, bearing within behind the peristome a white callus, on which is 
one subcentral and a second basal, erect, recurved tooth-like process, sepa- 
rated by a rounded sinus ; base often blackish, showing ‘the white callus 
prominently. Greater diameter 8 mm., lesser 6; height 4 mm. 
Zonites cerinoideus, var. cuspidatus, Lewis, Proc. Phila. Ac. Nat, Sci., 1875, p. 334. 
Zonites cuspidatus, W. G. Binney, Ann. N. Y. Ac. Nat. Sci., Vol. I. p. 359, Plate 
XV. Fig. C; Suppl. to Terr. Moll. V., Plate II. Fig. C. 
Mountains of Tennessee and North Carolina: a species of the Cumberland 
Subregion. 
The tooth-like processes within the aperture, strongly curved towards each 
other, form an arched space. 
