COCHLOSTYLA-CALOCOCHLEA. 



straightened, sloping, wide, whitish. Aperture oblique, subtetra- 

 gonal-lunar, white inside; peristome somewhat thickened, a trifle 

 expanded, brown-edged. (Pfr.) 



Alt. 27, greater diam. 37, lesser 33 mill. 



Naujan, Mindoro. 



H. solida PFR., P. Z. S. 1851 ; Monogr. iii, p. 187. H. sphwrion 

 PFR., Conchyl. Cab. t. 42, f. 5, 6 (not description). REEVE, Conch. 

 Icon. f. 114. 



C. SPH.ERION Sowerby. PL 31, figs. 34, 35. 



Shell globose-orbicular, thin, smooth, unicolored, scarcely shining ; 

 spire short, little elevated ; whorls 4, ventricose ; sculptured with 

 delicate growth-lines only; last whorl large, much larger than the 

 others ; suture a distinct white line ; aperture rounded, little modi- 

 fied by the last whorl, inside whitish ; outer lip brown, a little re- 

 flexed in front; columellar lip white, rather widened, deeply in- 

 serted. (Soivb.) Alt. 1-3, diam. 1-6 inch. (Sowb.) 



Tanauan, Island of Leyte, Philippines. 



H. sphwrion Sows., P. Z. S. 1841, p. 2. PFR., Conchyl. Cab. t. 

 150, f. 5, 6 (not /. c., t. 42, f. 5, 6). H. intincta SHUTTLW., Bern. 

 Mittheil., Aug. 1852, p. 196. Coclilostyla sphcerion SEMPER, Reis. 

 p. 184. HIDALGO, Journ. de Conchyl. 1887, p. 127. 



I have not seen the typical form of this species. Sowerby's ori- 

 ginal description is given above. As varieties the following forms 

 have been described. 



Var. IXTINCTA Shuttlw. PI. 31, figs. 31, 32, 33. 



Buff above, chestnut-brown below the periphery; a dark streak 

 behind the peristome ; lip but slightly expanded, brown ; columella 

 white, wide, slightly concave, flattened and somewhat excavated. 

 Alt. 30, diam. 32-1 mill. 



This is the only form of C. spJucrion I have seen. The coloring 

 and scarcely expanded lip, as well as the rather thin texture, re- 

 mind one of C. dimera. Like that shell, it shows no spiral stride 

 when examined under a lens. This is the H. spkarion of Philippi 

 (Abl)ild. iii, p. 54, Helix t. 10, f. 2) and of Reeve (Conch. Icon. f. 

 Ilia . 



Y\i:. Form as in the last, but unicolored dark brown all over; 

 siit ure with a light line. Reeve's figure lllb represents this color- 

 pattern. 



