COCHLOSTYLA-HYPSELOSTYLA. 27 



C. CONCINNA Sowerby. PL 11, figs. 26, 27, 28. 



Imperforate, pyramidal-conic, the last whorl angulated at the 

 periphery^ somewhat flattened at the base. Yellowish-brown, hav- 

 ing darker lines at suture and periphery (often lacking) and a 

 dark brown columellar patch ; variegated with irregular streaks and 

 angular spots of whitish hydrophanous cuticle, which on the base 

 forms two interrupted bands. Apex and upper portion of the earlier 

 1 whorls purplish-brown. 



Spire conic, apex very obtuse ; whorls 6 to 6i. Aperture oblique, 

 flesh colored inside, the lip expanded and edged with brown. Col- 

 umella wide, flat, white,, more or less distinctly truncated at base. 



Alt. 34, diam. 20; oblique alt. of aperture 17 mill. 



Alt. 30, diam. 19 i ; oblique alt. of aperture 16 mill. 



Tuguegarao, Cagayan ; Northwest coast of Luzon, Philippines. 



Helix concinna Sow., P. Z. S., 1841, p. 20. DELESSERT,Recueil, 

 t. 39, f. 2. Bulimus concinnus PFR., Symb. iii, p. 53 ; Monogr. ii, 

 p. 15 ; Conchyl. Cab. p. 180, t. 53, f. 4, 5. DESK, in Fer. Hist. t. 

 145 A, f. 5, 6. REEVE, Conch. Icon. t. 10, f. 52. Achatina con- 

 cinna PFR., olim. Cochlostyla concinna SEMPER, Reisen. Phil. 

 Archip. Landmoll. p. 206, t. 13, f. 11 ; t. 18, f. 18 (anatomy). 

 HIDALGO, Journ. de Conch. 1887, p. 169. 



The columella of this species is like that of Orthostylus leuco- 

 phcca, but the light texture, distinctly angular periphery and style 

 of coloring cause me to consider it a Hypselostyla. 



Var. FLAMMULA Semper. PI. 11, fig. 29. 



Imperforate, elongate-conic, solid ; brown, elegantly ornamented 

 with white flames. Spire elongated, apex obtuse. Whorls 6, 

 nearly flat, the last subangulated at the base, encircled at the 

 periphery with a black line. Columella straight, whitish ; aper- 

 ture trapezoidal, blue ; peristome slightly thickened, narrowly 

 reflexed and black-edged. (Semp.^) 



Alt. 44, diam 24; aperture, alt. 20, width 12 mill. 



Palanan and Digollorin, E. coast of North Luzon; Satpat, in the 

 Huron valley, on the west side of the northeastern Cordillera. 



C. fiammula SEMP. Reis., Landmoll., p. 206, t. 9, f. 2. 

 I have not seen this form, but no characters except size'separat- 

 ing it from C. concinna are mentioned by Semper. 



