CALLIOSTOMA. 



Zizyphinus laugieri Payr. JEFFR., Piedm. Coast, p. 27. MONTS., 

 Conch, litt, Med., p. 11. T. maculatus Risso, Eur. Merid. iv, p. 

 128. T. molaceus Risso, I c., p. 127, t. 8, f. Ill (1826). BRUSINA, 

 Contr. pella Fauna Dalm., \). 79. MONTS. (with var. monochroa 

 Monts.), Bull. Soc. Mai. Ital. 1889, p. 80. T. nigerrimus (Renier) 

 BLAINV., Fauna Franc., p. 262. T. seriopunctatus (Ren.) BLAINV., 

 I c., p. 263 (1830). MONTS., Bull. S. M. I. 1889, p. 81 (with var. 

 cingulella Monts.). T. hyadnthinus Ren. BLAINV., 1. c., p. 259, t. 

 10, f. 2. MONTS., Bull. S. M. I. 1889, p. 80, var. Candida Monts. 

 T. polymorphic CONTRAINE (in part), Bull. Acad. Bruxelles, 1855, 

 p. 386. T. candidus HRI'SINA, Conch. Dalm. Ined., p. 25 (1865). 

 T. solidus Phil., Conchyl. Cab., p. 90, t. 15, f. 12. 



This form is very mutable in color, and numerous varieties have 

 been proposed. The following are the more prominent. 



Var. violacea Risso (pi. 65, fig. 88), a beautiful purple form. 

 Var. cmidida Brus., pure white. Var. olivaceocon color Rt'q.. uniform 

 olivaceous without flames or blotches, from the Gulf of Gabes. Var. 

 seriopunctata Ren., dark olive, uniform or mottled with lighter, the 

 periphery and supra-sutural fascicle conspicuously articulated with 

 olive-brown and white. 



Var. SOLIDUM Phil. 



Shell conical, imperforate solid, pale olivaceous, articulated with 

 yellowish ; whorls plane, base margined by a prominent cingulus ; 

 whorls sculptured with 3 slightly elevated cinguli, the last rounded- 

 angular ; base obsolctely 7 to 9 cingulate ; aperture rhomboidal, 

 columella very oblique, entire. Alt. 14, diam. 12 mill. (Phil.) 



This form I place here with some doubt on account of its more 

 oblique columella, which forms no angle where it joins the basal lip. 

 It may be a synonym of C. conulum, or possibly distinct. 



C. OCCIDENTALS Mighels & Adams. PI. 37, figs. 2, 3. 



Shell rather small, thin, imperforate, opalescent; surface shining, 

 strongly sculptured above with smooth, yellowish spiral ribs, narrower 

 than their interstices, numbering 3 or 4 on each whorl ; periphery 

 very bluntly subangular, base nearly flat, with a few ribs around 

 the axis and at periphery, otherwise smooth. The spire is elevated, 

 acute ; whorls 7 to 8 ; apical whorl minute, smooth, rounded ; follow- 

 ing three whorls beaded on the spiral ribs ; sutures impressed ; aper- 

 ture rather rounded, pearly; columella, arcuate, narrow, not dentate 

 or truncate at base. Alt. 12, diam. 10-11 mill. 



