98 HARP A. 



The shell called var. Gruneri, Maltz., is not essentially 

 different. 



H. VENTRICOSA, Lam. PI. 40, figs. 59, 60. 



Shell with about twelve to fifteen rather broadly-flattened ribs 

 which are crossed by a number of rather broad light-chestnut 

 revolving bands, separated by narrow white bands; interstices 

 of the ribs wide, marked with chestnut and white arranged in 

 semicircles, or festooned ; aperture pinkish or yellowish white 

 within, showing the exterior painting ; columella blotched with 

 chocolate. Length, 2'5-3'5 inches. 



Indian Ocean, Zanzibar, Mauritius, Philippines, Viti Islands. 



H. CONOIDALIS, Lam. PI. 40, figs. 61-64. 



Spire more elevated and shoulder of bod} r -whorl more sloping 

 than in the preceding species ; the intercostal painting is simi- 

 larly festooned, but usually not so distinctly, the revolving- 

 bands on the ribs are defined either on the shoulder only, or 

 occasionally elsewhere, or throughout by dark chocolate borders. 



Length, 2'5-3'5 inches. 



Indian Ocean, Philippines, Mauritius. 



Dr. Sutor, as well as Sowerby and Reeve have attempted to 

 distinguish other species here, by characters that are poor 

 enough even in their figures, but which possess no claims what- 

 ever when a large suite of specimens are examined ; it is even 

 difficult in some cases to separate this shell from H. ventricosa. 

 In H. articularis, Lam. (fig. 62), the dark bands are well defined 

 throughout, in H. ligata, Menke = nablium, Mart. (fig. 61), they 

 are less frequent, and in the typical H. conoidalis, Lam. (fig. 63), 

 they are usually only occasionally visible on or towards the 

 shoulder. The latter variety approaches near to H. ventricusa. 

 H. striatula, A. Ad. (fig. 64), is a juvenile shell. 



H. CRENATA, Swains. PL 40, fig. 65. 



Ribs distant, thin, low, not reflected, interstices festooned with 

 light yellowish brown and white. Length, 2-3 inches. 



Acapulco, Panama. 



Besides the narrow ribs, the coloring is much less vivid than 

 in the preceding oriental species. 



