COCHLOSTYLA-TRACHYSTYLA. 167 



The species live on the ground under leaves, etc., contrary to the 

 usual arboreal station of Cochlostyla. 



C. CRYPTICA Broderip. PI. 50, fig. 1 ; pi. 51, fig. 9. 



Imperforate, capacious, solid, depressed-globose. Surface sculpt- 

 ured with low spiral cords, and close, obliquely forward-descending 

 wrinkles. Dark brown, covered with a thin brownish hydropha- 

 nous cuticle, which is worn from the prominences of the surface. 



Spire short, the first 1? whorls planorboid ; suture impressed. 

 Whorls 4A, convex, rapidly widening, the last somewhat descend- 

 ing in front. Aperture large, oblique, livid inside; peristome flesh- 

 colored, reflexed. Columella wide, very oblique, curving inward in 

 the middle. Alt. 46, diam. 56 mill. 



Northern Samar ; Eastern Mindanao, Philippines. 



H. cryptica BROD., P. Z. S. 1841, p. 22. PFR., Monogr. i, p. 

 258; Conchyl. Cab. p. 272, t. 43, f. 1, 2. REEVE, Conch. Icon. f. 

 7. Cochlostyla cryptica SEMPER, 1. c. p. 189. 



I am unable to separate as species the cryptica, latitans and cretata 

 of Broderip, and have therefore considered the two latter geographic 

 races. 



Yar. LATTTANS Sowerby. PI. 51, figs. 10, 11. 



Imperforate, capacious, solid, depressed-globose ; surface rudely 

 roughened by low spiral cords, and subobsoletely obliquely malleated. 

 Dark brown, more or less covered with a creamy-ashen hydropha- 

 nous cuticle, which is absent for a distance above the periphery, and 

 in front of the mouth. 



Spire low, very obtuse; whorls 4, the last but slightly descending 

 in front. Aperture very large, oblique, livid-pink inside ; lip re- 

 flexed, flesh-colored ; columella broad, very oblique, nearly straight, 

 whitish. Alt. 50, diam. 60 mill. 



Forests of Sierra Bullones, on the north coast of Bohol ; Dapa, 

 Siargao, Pta Malimono, near Surigao, Mindanao, Philippines. 



H. latitans BROD., P. Z. S. 1841, p. 23. REEVE, Conch. Syst. ii, 

 t. 165, f. 18; Conch. Icon., f. 10. PER., Monogr. i, p. 257 ; Con- 

 chyl. Cab., p. 273, t. 43, f. 3, 4. DELESS., Rec., t. 38, f. 3. 

 DH. in Fer., Hist., t. 108 A, f. 1, 2. Cochlostyla latitans SEMPER, 

 Reis., p. 188, t. 18, f. 15 (anatomy). ? H. dionacea DH., in Fer., 

 Hist., t. 28 A, f. 11, 12, texte, p. 276. PER., Monogr. iii, p. 191. 



