178 HELICARION. 



H. LTNEOLATUS, Martens. PI. 41, figs. 55-57. 



Perforate, distinctly striulate, and with light spiral lines, 

 shining, light orange, lighter below, a narrow opaque orange 

 zone at the suture, suture radiately plicatulate ; whorls scarcely 

 4; columellar lip a little reflected above. Diam. 19, alt. 12 mill. 



Java, Sumatra. 



A smaller variety, diam. 12, alt. 8 mill., is found in Sumatra, 

 the type being Javanese. 



H. SUMATRENSIS, Schepman. PI. 41, figs. 58-60. 



Perforate (?), shining, pellucid, yellowish brown, striulate, 

 with spiral lines ; suture margined ; whorls 4. 



Diam. 7'5, alt. 5'75 mill. 



Sumatra. 

 H. BORNEENSIS, Pfr. PI. 41, figs. 61-63. 



Very thin, striulate, and with obscure lightly impressed spiral 

 lines, pellucid, light corneous, suture submargined ; whorls 4, 

 rapidly increasing, base obliquely rugulose. Diam. 15, alt. 9 mill. 



Borneo. 

 H. SERICEUS, Martens. PI. 41, figs. 64-66. 



Perforate, striate, shining, light orange-brown, with a chestnut 

 line at the suture; whorls 4^; columellar margin very slightly 



reflected. Diam. 14, alt. 9 mill. 



Timor. 

 H. ID^, Pfr. PI 41, figs. 67-69. 



Thin, arcuately striulate, shining, pellucid, yellowish corneous; 



whorls 4. Diam. 14, alt. 7*6 mill. 



Celebes. 



One of Pfeiffer's figures shows a narrow orange-brown band 

 which is not mentioned in the description. 



H. CELEBENSIS, Pfr. PI. 41, figs. 70-72. 



Helicoid, a little solid, striulate, shining, coffee-colored, with a 

 lighter margin around the suture ; whorls 4 ; columellar margin 



subcallous. Diam. 11*5, alt. 7 mill. 



Celebes. 

 H. SUTURALIS, Martens. Pi. 41, figs. 73-75. 



Shell striulate, very shining, greenish yellow, more distinctly 

 striate and with an opaque white zone at the suture, suture 

 margined ; whorls 4. Diam. 15, alt. 10 ; var. diam. 20, alt. 12 mill. 



Isl. Burn, Moluccas. 



