PLEUROTOMA. 163 



from a unique specimen in the Cumingian collection, from the 

 'hilippines, is also a synonym. 



P. GrARNONSii, Reeve. PL 2, fig. 5. 



Shell narrower than the preceding species, with narrower and 

 sharper revolving ribs ; above the sinus these are mostly replaced 

 >y several revolving raised lines ; whitish or yellowish white, 

 with small brown spots on the principal ribs, larger oblique 

 brown patches below the sutures, and on the body-whorl near 

 the top of the canal the latter are frequently confluent into 

 a broad, more or less interrupted band. L. 3 inches, diam. '8 inch. 

 Red Sea, East Africa, Mauritius, Java. 



P. babylonia, var. of Kiener = this species. 



P. RAFFRAYI, Tapparone-Canefri. PI. 1, fig. 3. 



Shell spotted at the sutures, otherwise ornamented with longi- 

 tudinal brown flammules. L. 70, diam. 18 mill. 



New Guinea. 



The spots on the ribs have, in this form, coalesced into longi- 

 tudinal stripes. One of my specimens of P. Garnonsii exhibits a 

 tendency towards this ornamentation, and I do not think that 

 the present species has much claim to recognition. 



P. GRANDIS, Gray. PL 1, figs. 6, t* 



Whorls not much angulated, with sculpture of many rather 

 small sharp revolving ribs and intermediate raised lines ; 

 yellowish white, numerously spotted with chestnut-brown upon 

 the larger ribs, the spots often coalescing into irregular longi- 

 tudinal stripes. L. 6 inches, diam. 28 mill. 



China Sea, Viti Islands. 



P. crispa, Lam. (fig. 6), can only be considered a younger 

 state of this species, and, of course, has priority of description ; 

 but Gra3 r 's name is so appropriate to the largest species of the 

 genus, and is so well-known, that it had better remain undis- 

 turbed. 



P. PICTA, Beck. PL 2, fig. 19 ; PL 1, fig. 8. 



Shell somewhat more carinated than P. grandis, with less 

 numerous ribs, more sparingly painted with brown spots. 



L. 93, diam. 20 mill. 



West Coast of Central America, Gulf of California. 



