COCHLOSTYLA-ORTHOSTYLUS. 13 



by rather separated oblique or zigzag cream-white stripes, which 

 are often accompanied by stripes of the ground color. 



Spire elevated, conic, apex obtuse ; whorls 6. Aperture elliptical, 

 white or faint lilac inside ; peristome expanded and reflexed, white ; 

 columella vertical. 



Alt. 54, diam. 31 ; aperture, oblique alt. 31 mill. 



Alt. 59, diam. 34; aperture, oblique alt. 33 mill. 



Alt. 45, diam. 29 ; aperture, oblique alt. 28i mill. 



Guimaras, Negros and Panay, Philippines. 



Bulinus fulgetrum BROD., P. Z. S. 1840, p. 119. Bulimus ful- 

 getrum DELESSERT, Rec. t. 39, f. 7, 8, 9. REEVE, Conch, Syst. ii, 

 t. 172, f. 4; Conch. Icon. t. 5, f. 23. PER., Monogr. ii, p. 31 ; Con- 

 ch yl. Cab. p. 210, t. 59, f. 4-7. B. ventricosus var. DH. in Fer. 

 Hist. t. 145 A, f. 11, 12. Cochlostyla fulgetrum HIDALGO, Journ. 

 de Conchyl. 1887, p. 184. 



Typical specimens, when not rubbed, show a thin film of whitish 

 cuticle with occasional narrow, white zigzag or oblique stripes, each 

 bordered behind by a denuded stripe of the same width. These 

 stripes are often very short. Specimens having a dark peripheral 

 band also occur. The color pattern is about all that separates this 

 species from C. ventricosa. 



Group of C. satyrus. 



Oblong species, usually dark with a brownish or ashen cuticle, 

 streaked in the direction of growth lines. 



C. SATYRUS Broderip. PL 2, figs. 13-18 ; pi. 1, figs. 5, 6. 



Imperforate, ovate-elongate, solid, smooth. Ground color chest- 

 nut-brown, darker beneath, becoming very pale on the spire, the 

 earlier 3 whorls usually whitish (rarely light orange-brown) ; cov- 

 ered with a hydrophanous whitish, brown-tinted or ashen cuticle, 

 which is more or less streaked obliquely. There is a narrow dark or 

 light margin below the suture, rarely wanting. 



The spire is conoidal, longer than the aperture. Apex rather 

 obtuse ; suture but slightly impressed. Whorls 6, the last not 

 descending. Aperture oblique, ovate, bluish-white inside; lip 

 brown-edged ; columella purplish-pink, slightly truncated below. 



Alt. 44, diam. 28 mill. ; oblique alt. of aperture 25 mill. 



Alt. 54, diam. 28 mill. ; oblique alt. of aperture 29 mill. 



Tablas (Cuming) ; Albay and Palawan (Phil. Acad. Coll.); 

 Philippines. 



