98 HARP A. 



The shell called var. Gruneri, Maltz., is not essentiall}^ 

 different. 



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



Shell with about twelve to fifteen rather hroadly-flattened ribs 

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

 revoh'ing bands, separated by narrow white bands ; interstices 

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

 semicircles, or festooned ; aperture pinkish or 3'ellowish white 

 within, showing the exterior i)aiuting; columella blotched with 

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



Indian Ocean, Zanzibar, MniiritiuH, Philippines, V it i Island a. 



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



Spire more elevated and shoulder of body-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 l»y dark chocolate borders. 



Length, 2-5-3'5 inches. 



Indian Ocean, Philippines, Mauritius. 



Dr. Sutor, as well as Sowerb}' and Reeve have attempted to 

 distinguish other species here, by characters that are poor 

 enough even in their figures, but which [)()ssess no claims what- 

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

 difficult in some cases to separate this shell from //. ventricoHa. 

 In //. articularis, Lam. (fig. 62 *, the dark bands are well defined 

 throughout, in H. ZvVya^a, Menke = iiablium, Mart. (fig. 61), they 

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

 they are usually only occasionally visil>le on or towards the 

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

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



11. CRENATA, Swains. PI. 40, fig. 65. 



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

 light 3'ellowish brown and white. Length, 2-3 inches. 



Acaptilco, Panama. 



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

 in the |)receding oriental species. 



