614 EDGAR A. SMITH. 
211. Triforis gracilior, n. sp. (Pl. XX XV. figs, 18, 19). V. 
Testa 7’. excellenti similis, sed gracilior, cingulis duobus inferioribus subundulatis, alba, hic illic 
fusco maculata, 
Longit. 28mm., diam. 54mm. 
Like 7. excellens, this species has three keels upon each whorl, but they are not so equal, 
the uppermost being a trifle more slender than the others. The latter also are slightly affected 
by faint longitudinal depressions giving them an obscurely beaded appearance. The body-whorl is 
bicarinate at the periphery and has three or four lirae beneath. As in the preceding species, the 
space between the second and third keel is a little broader than that which separates the first 
and second, and the suture is filo-lirate. 
212. Triforis pura, n. sp. (Pl. XX XV. figs. 20, 21). XII. 
Testa elongata, alba, clathrata, granulata; anfractus circiter 20, fere plani, costis spiralibus 
tribus granosis inaequalibus (costa mediana minima) cincti, inter costas longitudinaliter costati, 
ultimus costis senis (prope labrum duabus intercalatis) ornatus; canalis dextrorsus, clausus, laevis ; 
apertura irregulariter ovata, obliqua; labrum antice prominens, postice recedens; columella callo 
erassiusculo reflexo induta. 
Longit. 14mm., diam. 3. 
Of the three spirals the uppermost is a little stouter than the lowermost and the central one 
is rather finer than the latter. The granules form oblique rows of three, being connected by the 
longitudinal costae. The suture is thread-like. 
213. Wertagus fasciatus, Bruguiére, var. 40,a,XV. VIII, IX. 
214. Wertagus kochi, Philippi, 40,0, YV. XI. 
215. Wertagus articulatus, A. Adams and Reeve (Cerithium articulatum, Adams and Reeve, 
3. V. articulatus, Sowerby, 40,a,XV.) VI, X. 
216. Wertagus obeliscus, Bruguiére, var. cedo-nulli (V. cedo-nulli, Sowerby, 40, a, XV.) 
IL, IDS, 
V. cedo-nulli is perhaps separable from obeliscus. 
217. Cerithium columna, Sowerby, 40,0, XV. IX, XI, XIII. 
218. Cerithium echinatum, Lamarck, 40,a, XV. XIII. 
219. Cerithium lacteum, Kiener, 40,a,XV. XI. 
220. Cerithium piperitum, Sowerby, 40,a,XV. IX. 
221. Cerithium salebrosum, Sowerby, 40,a,XV. II. 
222. Cerithium tuberculatum, Linn. (var.=(. variegatuwm, Quoy and Gaimard, 40, a, XV.) XI. 
223. Cerithium albovaricosum, Smith, var. 39,9. I. 
Three specimens, a little larger (19mm. long), paler, and with less of the brown dotting between 
the costae than in the type. 
224. Terebralia palustris, Linn. (Pyrazus palustris, Sowerby, 40,a,XV.) XI. 
225. Modulus tectum, Gmelin, 41,/X. IX. 
