94 phos. 



mediis cincta, inter costellas et strias minutissime longitudinaliter 

 striata. — The cross riblets are unequal, every third one being 

 prominent, and the interstices are very finely striated in a longi- 

 tudinal direction. Duniaguete, Philippines, Cuming. 



30. pallidus (f. 19, 20, 21), Powis (Nassa).— P. testa ovata, 

 rugata, pallide cinerea seu fusca, spiraliter costellatil, inter cos- 

 tellis striata ; anfractibus paucis, angulatis, ultimo magno ; costis 

 longitudinalibus, infra subevanidis, ad angulum prominentibus, 

 uodulosis ; apertura magna, columella antice angulata. — A rugose 

 species, in form resembling P. Blainvillei. The ribs, which are 

 prominent and nodose at the angle of the whorls, are nearly lost 

 towards the centre. Philippines. 



81. notatds (f. 17, IS), Smb. TL— P. testa P. pallido simili, 



sed costis enodis ad angulum et infra maculis cinereis fasciatim 

 notatis. — In this species the ribs are thin and scarcely raised, but 

 marked by ash-coloured spots disposed in bands on the angles 

 and below. Philippines. 



32. cyllenoides (f. 34), A. Ad. Pro. Zool. Soc. 1S50.— P. 

 testa ovata, pallida, costis magnis subdistantibus ad angulum 

 anfractuum elevatis ornata, angulatis, lineis impressis spiraliter 

 cincta, ad costas cinereo fasciata ; apertura prope marginem fusco 

 lirata.- — Small, pale, with ash-coloured bands on the ribs, which 

 are distant and angulated. Near the edge of the outer lip of the 

 aperture is a margin of raised lines with brown intervals. Phi- 

 lippines, Cuming. 



