12 STOMATELLA. 



but one ; the pillar less arched, flattened. The axis imperforate< 

 Throat silvery pearly, smooth. (Gray.') 



Raine's Island, N. Australi 



8. elegans GRAY, in Appendix to Narrative of the Voyage of I 

 M. S. Fly ii, p. 359, Marine sh., t. 2, f. 1, 1847. SOWERBY i 

 Conch. Icon., f. 27a, b. 



Fig. 10, of pi. 51, is copied from Gray's original figure. Figs. 7 

 79, pi. 53 are from Sowerby. I have represented on pi. 51, figs. 15, 1 

 a specimen before me which I believe to be the same species. Cor 

 pared with S. sulcifera it has far more rapidly widening last whorl ar 

 wider aperture ; the sculpture is much finer. The surface is du 

 whitish, very irregularly streaked with purplish. The sculpture 

 scarcely visible (except as fine spiral strise) except under a lens ; the 

 there are seen very numerous unequal or nearly equal spiral thread 

 slightly crenelated by excessively dense, close incremental elevat( 

 strise, which are irregular, somewhat tortuous and elevated in tl 

 inter-liral spaces. The spirals are narrower and the strise coarse 

 more distant, on the upper surface ; at the periphery the spirals a 

 wider, the -strise of increment excessively fine and close. The ape 

 ture is silvery inside, with reflections chiefly of red and blue ; the nac 

 is almost smooth ; the columella has a new-moon shaped white tra 

 as in S. sulcifera. 



Alt. 16, diam. 25 mill. ; aperture, breadth 18, oblique alt. ] 

 mill. ; greater radius 20, lesser 6 mill. 



S. LYRATA (A. Ad.) Pilsbry. PI. 2, figs. 3, 4, 5. 



Shell depressed-globose, thin but solid, pinkish, with dots of de< 

 brown or black and white on the spiral riblets. Spire short ; su 

 ures deeply impressed ; surface of whorls encircled by narrow spir 

 lirse, separated by spaces about 1 mill, wide (in a specimen of ] 

 mill, diam.), these interstices closely latticed by oblique raised stri; 

 and bearing on the last part of the whorl from one to three rninu 

 spiral interstitial threads. There are about 16 principal threads ( 

 the body whorl of the largest specimen before me, but this charact 

 is extremely variable. Whorls 3, convex, the last descendin 

 Aperture large, very oblique, rounded-oval, nacreous, iridesce 

 and slightly sulcate within, corresponding to the sculpture of t] 

 outside ; columella arcuate, narrow, flattened. 



Alt. 11, diam. 15 mill. ; aperture oblique alt. 11, breadth 10 mi 



Japa 



