GLYPHIS. 



221 



G. LANCEOLATA Sowerby 2d. PL 61, fig. 19. 



The sudden narrowing of the front part distinguishes this from F. 

 pica and F. incequalis, besides the cancellation being a little more 

 depressed. (Sowb.*) 



Moreton Bay. 



F. lanceolata SOWB., Thes., p. 200, f. 182. 



G. ARTICULATA Sowerby 2d. PI. 63, fig. 11. 



Elongate, compressed, tawny, varied with brown bands, can- 

 cellated with concentric lirse and radiating, beaded ribs, alternately 

 larger, some of them articulated with black ; foramen elongated, far 

 above the middle, (Sowb.) 



Habitat unknown. 



F. articulata SOWB., Thes., p. 200, f. 176. 



G. HANLEYANA Sowerby 2d. PL 61, fig. 27. 



Small, white, subdepressed, narrowed in front, minutely cancel- 

 lated ; white within, margin lightly crenulated ; orifice median, 

 subtrigonal, with a little elevated point on each side. (Sowb.~) 



Habitat unknown. 



F. hanleyana SOWB., Thes. p. 202, f. 174. 



Group of G. gibberula Lam. 



Small species with the orifice small, anterior, and the basal side- 

 margins arched, so that the shell rests upon the ends alone. It is 

 not altogether unlikely that Fissuridea galeata Helbling belongs 

 here. It may be noted that in the conical species having the apex 

 curved far forward, the truncation or pit behind the hole-callus is 

 indistinct or subobsolete. 



G. GIBBERULA Lamarck. PL 36, figs. 21, 22, 23, 24. 



Shell small, ovate, elevated ; anterior slope short, straight, pos- 

 terior slope long, convex. Sculpture consisting of numerous fine 

 subequal radiating riblets decussated by fine concentric lirse, which 

 cut the interstices into square little pits, and crenulate the riblets at 

 their intersections. 



The color is light yellowish, unicolored or with 8 blackish (rarely 

 pinkish) rays. Inside white, showing traces of the fine radiating 

 riblets of the exterior. Edge finely crenulated, the denticles in 

 pairs. Basal margin more or less arched at the sides. 



Length 11-12, width 7, alt. 4 mill. 



Mediterranean and Adriatic Seas; Atlantic, from England to 

 France, Spain, Canary Is., and Guinea. 



