22 STOMATELLA. 



White, umbilicated, with radiating fuscous bands ; whorls with 

 two elevated obtuse, transversely striated keels. (Ad.*) 



Habitat unknown. 



S. tigrina AD., P. Z. S. 1850, p. 33 ; Thes. Conch, ii, p. 839, t. 175, 

 f. 37. SOWB. in Conch. Icon., f. 18. 



S. ARABICA A. Adams. PL 52, figs. 57, 58. 



Shell ovate-globose, subturbinate, umbilicate, white closely va- 

 riegated with red ; spire produced ; whorls lirate, the last ventricose, 

 convex, transversely striated ; aperture open, suboval ; columella 

 oblique ; umbilical region impressed ; lip white, thin, reflexed, partly 

 covered the umbilicus. 



This is a small species, with the whorls round and simply striated ; 

 the color and markings vary ; the ground however is usually white, 

 with large irregular blotches. (Ad.) 



Red Sea. 



S. arabica AD., P. Z. S. 1853, p. 74; Thes. Conch, ii, p. 836, t. 



174, f. 27, 28. SOWB., Conch. Icon., f. 14. 



S. MARGARITANA A. Adams. PI. 51, fig. 22. 



Shell turbinate ; spire elevated ; whorls rounded, red, longitu- 

 dinally striate, transversely costulate, costulse subnodose, unequal ; 

 aperture suborbicular ; pearly within ; lip semicircular ; umbilicus 

 covered by a callous. 



A small red, transversely ribbed species, having very much the 

 appearance of a Margarita. (Ad.) 



Australia. 



S. margaritana AD., P. Z. S. 1850, p. 33 ; in Sowb., Thes. Conch, 

 ii, p. 839, t. 174, f. 31. SOWB. in Conch. Icon., f. 17. 



S. OALLIOSTOMA A. Adams. PI. 53, figs. 80, 81. 



Shell ovate-subturbinate, rimate ; spire depressed; reddish, va- 

 riegated with brown, transversely lirate, lirse elevated, unequal; 

 aperture transversely oval, rosy within, iridescent ; inner lip thin, 

 acute, arcuate. 



The interior of the aperture in this species is of a beautiful reddish 

 or violet tint ; externally the whorls are spirally lirate, and of a dull 

 reddish-brown, variegated with markings of a darker color. (Ad.) 



Ceylon. 



S. calliostoma AD., P. Z. S. 1853, p. 74 ; Thes. Conch, ii, p. 840, t. 



175, f. 41, 42. SOWB. in Conch. Icon., f. 33. 



