CALLIOSTOMA. :;,<". 



on the basal riblets with rich brown, and frequently with rather 

 obscure clouded maculations of pale brown above. The surface is 

 shining, closely sculptured by numerous narrow threads or riblets, 

 which on the spire are contiguous, finely, regularly beaded, becoming 

 more separated on the last whorl, the interstices obliquely striate, 

 the spiral riblets either granulate or nearly smooth ; base with 

 numerous concentric lirula?, granose or nearly smooth, the interstices 

 radiately striate. The spire is elevated, slender, its outlines concave ; 

 apex minute, apical whorl smooth, rounded ; suture linear, its position 

 marked by a slightly prominent double granose cingulus above it. 

 Whorls about 8, flat, the last strongly angular at the periphery, con- 

 vex beneath. Aperture subquadrate, finely sulcate inside ; columella 

 subvertical, arcuate, cylindrical. Alt. 31, diarn. 33 mill. 



Mediterranean and Adriatic Seas ; Atlantic coast, from Scotland to 

 Madeira and Canaries. 



Tr granulatus BORN, Ind. rer. N"atur Mus. Qes. Vind., p. 343 

 (1778) ; Test. Mus. Cses., t. 12, f. 9, 10. LAMARCK, An. s. Vert, 

 vii, p. 26. BLAINV., Fauna Franc., p. 260, t. 10, f. 5. PHILIPPI, 

 Enum. Moll. Sicil. i, p. 74, t. 10, f. 22; ii, p. 149. FORBES & 

 HAXLEY, Brit. Moll, ii, p. 499, t. 67, f. 7. JEFFREYS, Brit. Conch, 

 iii, p. 327, v, p. 204, t, 63, f. 5. HIDALGO, Mol. Mar. Esp., t. 59, f. 

 9-11. FISCHER, Coq. Viv., p. 79, t. 18, f. 1. BUQ., DAUTZENB. ET 

 DOLLF., Moll. Mar. du Rouss., p. 359, t. 48, f. l-oZiziphinn. 

 granulatus BRUSINA, Contr. pella Fauna Dalm., p. 79. Tr.papillosus 

 DA COSTA, Brit. Conch., p. 38, t. 3, f. 5, 6. DONOVAN, Brit, Bh., 

 iv, p. 127. TURTON, Conch. Diet., p. 190, t. 16, f. 62. PHILIPPI, 

 Conchyl. Cab., p. 85, t. 15, f. 5. Tr. fragilis PULTENEY (not Gmel.) 

 Catal. Dorset., p. 48, t. 16, f. 6. T. tennis MONTAGL, Test. Brit, i, 

 p. 275, t. 10, f. 3. Risso, Hist. Xat, Eur. Merid. iv, p. 129. 



Larger than any other granulate European species, and further 

 distinguished by the thin shell, inflated base, etc. 



The following varieties are admitted by Messrs. Buquoy, Dautzen- 

 berg and Dollfus. The differential characters are very slight. 



Var. nobilis Moots. Very large, of a uniform ferruginous brown 

 color. Malta. 



Var. conoidea Jeffr. More solid, more regularly conical than the 

 type, the last whorl less dilated. 



Var. IcBvis Brugnone. Spiral lirse not granulate. 



Pleistocene of Monte Pellegrino. 

 25 



