210 GIBBULA. 



The solid shell is rather conical, for the whorls are quite level, 

 only projecting a little below the suture. They are grooved by 4 

 narrow slightly impressed furrows, besides which the last whorl has 

 a few inconspicuous furrows. The last whorl is angular at the 

 periphery and the ridge between this angle and the lower of these 

 furrows is somewhat more elevated than the rest of the upper sur- 

 face. The base is rather elevated, with 4 to 6 slight narrow con- 

 centric furrows. The umbilicus is moderate, round, white, with a 

 sharp angle inside the outer edge. The aperture is quadrangular, 

 with well-rounded angles. The columella is rather arcuate. The 

 color is pale brown, at the suture white with large brown spots, 

 sometimes with reddish-brown oblique strokes between every two 

 furrows ; the base is checkered with white. 



Alt. 8, diam. 8 mill. (PhilippL) 



Habitat unknown. 



T. turdus PHIL. Conchy 1. Cab., p. 308, t. 44, f. 11. 



G. ADANSONI Payraudeau. PI. 30, figs. 1-4. 



Shell narrowly umbilicate, conical ; color maroon or deep brown, 

 with longitudinal undulating flames of white, continuous or inter- 

 rupted into spots on the base; spire conoi da 1, elevated ; whorls 6 to 

 7, convex, traversed by numerous spiral stria? ; last whorl large, 

 dilated, subangulate at the periphery, the base convex, concen- 

 trically finely lirate, each ridge divided by a central impressed line ; 

 sutures deeply impressed; aperture subquadrangular, columella 

 straight or a little projecting in the middle ; umbilicus deep, very 

 narrow, bounded by a carina. Alt. 12, diam. 10} mill. 



Mediterranean, Adriatic and Black Seas. 



T. adansonii PAYR., Moll, de Corse, p. 127, t. 6, f. 7, 8 (1826). 

 PHILIPPI, Concliyl. Cab., p. 192, t. 29, f. 14, 15. FISCHER, Coq. 

 Viv., p. 343, t. 107, f. 1-4. BUQ, DAUTZ. ET DOLLFUS, Moll, du 

 liouss., p. 394, t. 47, f. 1-5. T. varians DESH., Exped. Moree, p. 

 142, t. 18, f. 31-33. T. adriaticus PHIL., Enwn. Moll. SiciL, ii, p. 

 153, t. 25, f. 10. T. tiirbinoides DESH., Exped. Moree, p. 143, t. 18, 

 f. 28-30. BUQ. DAUTZ. ET DOLLFUS, Moll, du Rons*., p. 396, t. 

 47, f. 26-30. T. helicoides PHILIPPI, Conchy 1. Cab., p. 197, t. 29, f. 

 23. Gibbula ivanicsi BRUSINA, Conch. Dalm. ined., p. 27. T. 

 ivanicsiana BRUS., Contr. pella Fauna Dalm., p. 80. T. olivaceus 

 ANTON, Verzeich., p. 57. T. angulatus (EICHWALD) BRUS. (teste 

 Monterosato, II Nat. SiciL, iii, p. 105). T. euxinicus Andr., KRYN. 



