406 CALLIOSTOMA-EUTROCHUS. 



truncate below, color reddish-white, decorated with dark brown-red 

 flames and little red dots. Separated from T. jujubiuus by the 

 .smaller size, lack of granulation, etc. 



Alt. 14, diam. 15 mill. (Philippi.) 



Habitat unknown. 



Tr. pulchellus PHIL., Zeitschr. f. Mai. 1846, p. 101. -Conchyl. 

 Cab., t. 13, f. 3. Zizyphinus pulchellus KEEVE, Conch. Icon., f. 42. 



I know nothing of the form. It may be a synonym of C. 

 jujubinum. 

 C. ZONAMKSTUM A. Adams. PL 62, fig. 68. 



Shell conical with straight outlines, the base flat, with a deep, 

 funnel-shaped umbilicus ; rather solid ; light yellowish, with numerous 

 narrow, sharply-defined dark-brown or blackish spiral lines. Out- 

 lines of spire straight, sutures not at all impressed ; apex minute, 

 smooth ; whorls about 9, flat, encircled by numerous equal, finely- 

 beaded line, about 9 on penult, whorl, the interstices densely 

 costulated by fine incremental stria) ; last whorl acutely angled at 

 periphery, flat below, and nearly smooth toward the outer edge, finely 

 granose-striate on the inner half. Aperture rhomboidal, lip thin ; 

 columella arcuate above, strongly toothed below ; umbilicus wide, 

 bounded by a beaded cord. 



Alt. 24, diam. 25 mill, ; alt. 26, diam. 33 mill. 



West Indies; Tortola (Swift) ; St. Kitts (Ball) ; Honduras (Dyson). 



f Trochus javanicus LAM., An. s. Vert, vii, no. 50. DELESSERT, 

 Rec. de Coq., t. 35, f. 2 ? PHILIPPJ, Conchyl. Cab., p. 110, t. 18, f. 

 5. FISCHER, Coq. Viv., p. 77, t. 17, f. 3. Zizyphinus javanicus 

 Lam., CHENU, Manuel, f. 2662. Zizyphinus zonamestus AD., P. Z. S. 

 1851, p. 166. REEVE, Conch. Icon., f. 21. Calliostoma zonamestum 

 Rve. DALL, Blake Gasterop. 



Following the suggestion of Dr. Dall, I adopt Adams' name for 

 the West Indian shell described as T. javanicus by Philippi and 

 Fischer. There is no doubt of the locality, specimens with un- 

 questionably correct data being in the Philadelphia and Washington 

 collections. It is quite possible that T. javanicus of Lamarck is a 

 distinct species. The figures in Delessert show a more elevated form, 

 slightly swollen at the sutures, and more distinctly cingulate there, 

 than the shells before me. This opinion has been advanced by 

 Tapparone-Canefri (Zool. della Fregata 'Magenta,' p. 60, 1874), 

 who says that the figures of Delessert's Recueil, pi. 35, f. 2, and of 



