66 SCALARIA. 



S. ANGUSTATA, Dunker. PL 13, fig. 13. 



Narrowly turreted, white, whorls rounded, with equal, some- 

 what distant, continuous lamellae, a little declining. 



Length, 9 mill. 



Japan. 



S. SYMMETRIC A, Pease. PL 13, fig 12. 



Solid, w r hite; whorls 6, contiguous, spirally striated, with 16 

 thick, slightly recurved, continuous varices. Length, 8 mill. 



Tahiti. 



S. GRACILENTA, Gould. PL 13, fig. 10. 



Shell white, with 9 contiguous whorls, with profound suture, 

 crossed by 16 thin, rather low lamellae, the interstices minutely, 

 spirally striated. Length, 6*25 mill. 



Ins. Mangsi. 



S. TEXTURATA, Gould. PL 13, fig. 9. 



Subperforate, yellowish white; whorls 8, rounded, nearly 

 separate, crossed by nine whitish, elevated reflexed ribs, slightly 

 aculeate above, interstices microscopically decussated. 



Length, 5 mill. 



Hob. unknown. 



One of the species of the Wilkes' Exploring Expedition, pos- 

 sibly Polynesian. 

 S. PHILIPPINARUM, Sowb. PL 13, figs. 18, 19. 



Imperforate, white, or fulvous between the lamellae; whorls 

 about 10, well rounded, crossed by rather distant lamellae, a 

 little produced above. Length, 1 inch. 



Philippines, Australia, Amboyna, etc. 



This species is quite common in collections and seems to have 

 a pretty wide distribution. Very probably some of the nearly 

 related forms are really only slight variations and should be 

 united with it 

 ;S. JUKESIANA, Forbes. PL 14, fig. 20. 



Imperforate, white; whorls 9, narrower than the preceding 

 :species, separate at the suture, with more numerous, nearly 

 equal lamellae. Length, 17 mill. 



Australia. 



S. Wellingtonensis, Kirk, is said to be a synonym, but the 

 specimens received under that name at the Philadelphia Acad- 

 emy, from a distinguished Australian conchologist, appear to 

 = S. Philippinarum. 



