STOMATELLA. 23 



S. modesta H. & A. Adams. PI. 53, fig. 83. 



Shell subcircular, imperforate, depressed, spire small ; whorls con- 

 vex, transversely lirate, lira? unequal, articulated with gray, some 

 of them stronger ; aperture ovate, oblique, vividly iridescent-white 

 within, clouded with gray. 



A neat lirate species, clouded with pale gray, and a few darker 

 blotches at the sutures. (Ad.) 



Red Sea f 



S. modesta Ad., P. Z. S. 1863, p. 433.— Sowb. Conch. Icon., f. 34. 



S. elata H. & A. Adams. PI. 58, fig. 90. 



Shell orbiculate-conic, imperforate ; spire elevated, whitish, radi- 

 ately painted with brown at the sutures, ornamented with sub- 

 quadrate brown spots at the periphery ; transversely lirate, lira? un- 

 equal, articulated with brown ; aperture subcircular, inner lip sub- 

 calloused, reflexed. (Ad.) 



Habitat unknown. 



S. irisata Dufo. Unfigured. 



Animal covering a part of the shell with the mantle edges ; exte- 

 rior black. 



Shell very depressed, ear-shaped ; spire little elongated, but appar- 

 ent ; aperture rounded, wider than long ; right margin striate with- 

 in ; surface striate and granulate, white, with black bands and red 

 points ; left side white ; interior subnacreous, with greenish bands. 

 (Dufo.) 



Id. of Mate, Seychelles. 



Dufo, Ann. des Sci. Nat. 1840, p. 201. 



S. minima Dufo. Unfigured. 



Shell depressed, ear-shaped ; spire little conspicuous ; aperture 

 oval, much wider than long ; the right margin smooth and acute, 

 the left smooth and flat; outer surface not striate, white marbled 

 with red ; interior not nacreous. (Dufo, I. c.) 



Make, Seychelles, on Avicula margaritifera, in 6 fms. 



Probably a Gena, allied to G. Icevis and G. lutea. 



S. nigra Anton. Unfigured. 



Obliquely oval, convex ; spire small, lateral ; black, the margins 

 red-and-white striated ; aperture oval-rounded, inner volutions 



