MITEA. 25 



335. pusilla (f. 644) , A. Adams. 



336. lacheyha (f. 656), Reeve. — Somewhat conical at each 

 end. 



337. semicostata (f. 492), Anton. — The upper parts of the 

 shell are ribbed, but it is smooth from the middle in front 

 of the last whorl. 



338. rufocincta (f. 420, 653), A. Adams. — With a varie- 

 gated reddish band near the suture and another in the 

 middle of the whorls. 



339. capensis (f. 654), Ihmker. — Is a much plainer shell 

 than M. rufocincta, with hardly any variegation. 



340. pica (f. 522), Reeve. 



341. Gr^nlandica (f. 519), Gray. 



342. vincta (f. 520, 521), C. B. Adams.— The whorls are 

 rounder than in M. Grcenlandica, and the colour richer. 

 The dark bands are not uniform. 



343. patula (f. 526), Reeve. — A smooth, open-mouthed 

 little shell. 



344. apeeta (f. 320, 321), Sowerby — lake M.pahda, but 



slightly ribbed above, and variegated with brown. The 

 form is also different. 



345. littoealis (f. 638), Forbes. 



346. Savignyi (f. 491, 639), Payraudeau.—M. littomlis 

 is a smooth shell, while this is ribbed. 



347. geandm (f. 642), Forbes. — Although much attenuated 

 still having a resemblance to M. littoralis. 



Sect. XII. Spire turreted, shell ribbed downwards , aperture 

 generally ribbed within. The more shortened, truncated 

 species. — Sections 12 and 13 — may be regarded as repre- 

 senting the genus "Turricula" as distinguished from 

 Mitra by some conchologists. 



348. speciosa (f. 414, 415), Reeve. 



