GIBBULA. 209 



Var. FUMOSA Philippi. 



Yellowish, marked above with large reddish maculations, the 

 base radiately striped with brownish-gray ; form more elevated and 

 slenderer than in T. cinerarias. Alt. 10, diam. 10 mill. 



Habitat unknown. 



G. OBLUJUATA, Ginelin. PI. 30, figs. 11-16. 



Shell more depressed than G. cineraria, and (although the base is 

 flatter} never inclined to a pyramidal form ; the spiral ridges are 

 sharper and fewer, especially in the young ; the coloring is different; 

 both have a similar kind of marking, but in the present species the 

 longitudinal rays or streaks are red, besides being broader and not 

 half so many as in the other species ; and they are sometimes zig- 

 zag, instead of being broken into spots or interrupted by the sculpt- 

 ure; this species is striped, the other lineated; just within the outer 

 lip are two borders, one of yellow, the other of green variegated by 

 red spots , this edging is minutely tubercled like shagreen. 



Alt. 17, diam. 20 mill. (Jeffreys.) 



T. obliquatm GMEL., $T/S. Nat., xiii,p. 3575. PIIILIPPI, Conchyl. 

 Cub., p. 223, t. 34, f. 5-9. FISCHER, Coq. Vio., p. 191, t. G2, f. 2, 3. 

 T. umbiUmtus MONTAGU, Test. Brit., p. 28(>. JEFFREYS, Brit. 

 Conc.lt., iii, p. 312 (and of other English authors). T. umbilicalis 

 FORBES AND HANLEY, Hist. Brit. Moll., ii, p. 519, t. 66, f. 1-4. 

 T. pennanti PHILIPPI, Conchyl. Cab., p. 224, t. 34, f. 10. I 7 . 

 agathensis RECLUZ, Rev. ZooL, 1843, p. 11. 



The present species is usually more widely umbilicate and broader 

 than G. cineraria. 



Var. AGATHEXSIS Recluz. 



Smaller, with the spire more raised ; less angular at periphery, 

 and somewhat glossy beneath ; stripes purplish ; umbilicus closed 

 or nearly so. 



G. TURDUS Philippi. PI. 33, figs. 98, 99. 



Shell solid, globose-conical, white, ornamented at the suture with 

 pale brown spots, the rest of the shell painted with articulated 

 lines of reddish-brow T n ; whorls nearly plane, a trifle tumid at the 

 suture above, quadrisulcate, the last whorl angular at the circumfer- 

 ence, margined, the base grooved by 4 to 6 sulci ; umbilicus moder- 

 ate, cylindrical ; aperture squarish-rounded. (Phil.} 

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