M.AIUA. 



QLBOTA, Ads. Mn.i Eteere. PI. 1 1, figs, 84, 



Umbilieated, pale fawn-color, I lie ribs white; whorls 7-8, 

 rounded, rather numerously lamellate, the lamelhe iin<-in;itcd at 



the top of the ril'S. Length, \"2't inch 



China Sea. 



S. inclyta, Melvill (fig. 35), appears to me to l.e :in old, wcll- 

 rrown speeimen of this form; tlie author distinguished it from 

 N. ni'tfh'rta, but apparently has taken Kecve's incorrect identifi- 

 cation of that species (see preceding description). 



S. IMPERIALIS, Sowb. PL 11, fig. 30. 



Narrowly umbilicated, fawn-color between the white lamellae, 

 which are numerous and rather close; whorls about 8, well 

 rounded, rapidly increasing. Length, 1*25 inches. 



Mozambique ; Swan River, Australia. 



S. BULLATA, Sowb. PL 11, fig. 37. 



Narrowly umbilicated, short and broad, very ventricose ; 

 whorls 6, very rapidly increasing, with oblique lamellae, some- 

 what uncinate at the suture. Length, 20 mill. 



Ins. Capulj Philippines. 

 S. OBESA, Sowb. PL 11, figs. 38, 39. 



Whorls 6, ventricose, rather solid, contiguous, with numerous, 

 thick, rounded lamellae ; margin of aperture usually fulvous. 



Length, 16 mill. 



Australia. 

 S. ALATA, Sowb. PL 11, fig. 40. 



Narrowly umbilicated, white, often broadly diffusely banded 

 with fawn-color; whorls 7, not in contact, with distant, thin 

 lamellae, angulated above, with somewhat pointed angle. 



Length, -5-'75 inch. 



Singapore, Philippines^ Viti Is. 



S. IASCIATA, Sowb. PL 11, fig. 41. 



Umbilicus nearly covered, white, single-banded with brown 

 between the varices ; whorls 7, rounded, hardly touching, lamel- 

 uininately angled above. Length, 23 mill. 



Ins. Luzon, Philippines. 



