222 (JIBBULA. 



Compared by Philippi with G. racketti Payr., which is similarly 

 colored, nari'ovver, more ovoid, less conical. 



G. SEMiNULA Philippi. PI. o3, fig. 85. . 



The shell is rather thin, globose-conical ; the 5 whorls are 

 moderately convex, the last quite circular, somewhat angular in the 

 middle, but the angle appears much more prominent on account of 

 a thread-like ridge which encircles it. Above this are 4-5 elevated 

 lirie, as wide as their interstices ; and upon the base are 9 or 10 lirse, 

 which become narrower and weaker toward the periphery. The 

 umbilicus is very narrow, a mere crevice. The aperture is rhom- 

 boidal, with rounded angles; the columella slightly arcuate, simple. 

 The color is red, verging on yellow, with -1 to 5 broad white rays; 

 the apex is white. Alt. 3*, diam. slightly less. {Philippi ) 



Habitat unknown. 



T. seminnlum Phil., Conclnjl. Cab., p. 308, t. 44, f. 12. 



The most similar species is our T. helicoides [G. adansonsii Payr.], 

 but that species differs in the larger size, wider umbilicus and 

 rounder aperture ; at least no transition forms have come under my 

 notice. (Philippi.) 

 G. TiBERiANA Crossc. PI. 32, fig. 53. 



Shell im])erforate, conical, rather thin, olivaceous with nacreous 

 reflections, ornamented with flexuous longitudinal grayish streaks; 

 spire moderately elevated; suture impressed; whorls 5 2 to 6, sub- 

 planate, the last obtusely angulated ; base obsoletely striated and 

 covered with spots of grayish-white ; aperture oblique, quadrate, in- 

 side Avhite, nacreous ; columella somewhat expanded ; outer margin 

 simple, acute. {Crosse). Alt. 4i5, diam. 42 mill. 



Coodgee Bay, S. Australia. 



T. tiberiamis Crosse, Joimi. de Conch., 1863, p. 381, t. 13, f 2, — 

 Fischer, Coq. Viv., p. 408, t. 120, f 2. — Cantharidus tiberianus 

 Angas, p. Z. S. 1867, p. 215. 



G. YESSOEKsis Schrenck. PI. 37, figs. 23, 24 ; pi. 40, fig. 43. 



Shell small, imperforate, conical, rather thin, smooth, shining, light 

 olivaceous, longitudinally marked above with radiating red stripes, 

 with short alternating white maculations at the suture and periphery ; 

 upper surface of whorls w'ith three spiral girdles of alternating white 

 and blackish spots, continuous over the longitudinal flames ; spire 

 conical, whorls 6, slightly convex, obsoletely lirate, especially at 



