390 CALLIOSTOMA. 



I have retained conuloides as a variety of zizyphinus, rather than 

 a sjjecies. It will be noted that zizyphinus from the Mediterranean 

 has a spirally sulcate form (var. cingiilata), and conuloides from 

 northern Europe has a smooth one (var. Icevigata). The latest treat- 

 ment of the species is in Bull. Soc. Mai. Ital. xiv, p. 77, 1889, article 

 by Monterosato. He splits the zizyphinus into five species ! 



C. CONULUM Linne. PL 65, figs. 70, 71, 72. 



Shell elevated-conical, higher and narrower than C. zizyphinum ; 

 carinated at periphery ; yellow or delicate flesh color, with obscure 

 clouds or macula; alternately whitish and brown below the suture, 

 and painted on the peripheral rib in the same alternate manner ; the 

 surface is highly polished ; apical whorl smooth, the next four or five 

 whorls densely granuhite (granules in 4 or 5 series), the next whorl 

 generally spirally ribbed, following whorls smooth, or with very 

 obscure traces of spiral lines; base flat, smooth, save for 3 to 6 con- 

 centric articulated riblets around the axis ; outlines of spire straight ; 

 whorls about 10, Hat, separated by linear suture with a distinct narrow 

 supra-sutural fasciole. Aperture rhomboidal, smooth within ; col- 

 umella shorter and more knobbed at base than C. zizyphinum, pearly. 



Alt. 26, diam. 22 mill; alt. 23, diam. 18 mill. 



Mediterranean and Adriatic Seas; Atlantic Ocean at Canaries, 

 Madeira and Azores Is. 



T. co)iiili(s Linn., Syst. Nat. xii, p. 1230. — And of Lamarck, 

 Payraudeau, Risso, Philippi, WioiXKAUFF, Hidalgo, Fischer, 

 BuQUOY, Dautzenberg & DoLLFTS and other authors. — Z. lucidus 

 Risso, Eur. Merid., p. 126. — Zizyphinus (JancintRinus) cormlus L. 

 vars. acuta, dilatata, striata sanguinea, pallida, aurantia, violacea 

 Monts., Bull. Soc. Mai. Ital., 1889, p. 79, 80. 



Var. dubius Phil. 



T. dubius Phil., Enum. Moll. Sieil. ii, p. 149, t. 25, f. 7, 1844; 

 Conchyl. Cab., p. 66, t. 13, f. 11.— BuQ., Dautz., et Dollf., Moll. 

 Rouss., p. 352, t. 42, f. 5-7. — T. conulus var. dubius Phil. Fischer, 

 Coq. Viv., p. 121, t. 49, f. 4. — Z. dubius Phil, and vars. dilatata, 

 incavata, media, lirata, elevata, cinnamomea, olivacea, violacea Monte- 

 rosato, Bull. Soc. Mai. Ital., 1889, p. 80. — T. dubius var. spongiarum 

 B., D. & D., Moll, de Rouss., p. 353, t. 42, f 8, 9.— T. flavidus 

 DuNKER, P. Z. S. 1856, p. 354.— .i^ T. pallidulus Dkr., P. Z. S. 1856, 

 p. 355. 



