MITRA. 21 



276. Apautca (f. 433), H.Adams— Alittle shell resembling 

 M. MicheUni in colour, somewhat in form, but very finely 

 sculptured and narrow, with little white specks. 



277. oeligena (f. 222), Reeve. — Acuminated at each end, 

 finely ridged and speckled with white. 



278. Rupellii (f. 509), Reeve. — Narrow and mitre-shaped, 

 with broad ridges between the grooves. 



279. Solandki (f. 265), Reeve. — With broad, deep grooves. 



280. nanus (f. 434), Reeve. — Resembling M. aurantia on 

 a smaller scale, and more finely sculptured. 



281. TrcAONiCA (f. 252-254), Reeve. 



282. ckassa (f. 66), Swainson. 



283. tkistis (f. 446), Swainson. — Slightly undulated on 

 the upper part of the whorls. 



284. vesillum (f. 270), Swainson. — Tops of the whorls 

 angular, grooves distant, spaces flat; sides of shell com- 

 pressed and attenuated towards the anterior. 



285. ceassicostata (f. 387), Sowerby. — M. vexillce simili 

 sed costis paucis, rotundis, sulcis profunde puncturatis, labio 

 externo valde crenulato. — Resembling M. vexillvm in form, 

 but with few, thick, rounded ribs, deeply punctured grooves 

 and strongly crenulated outer lip. 



286. ceetacea (f. 577, 8), Sowerby. — Testa mitrasformis, 

 alba, striis longitudinalibus et sulcis tenuibus spiralibus 

 decussata; apertura spirarn longitudine sequanti; labio ex- 

 terno intus tenuiter crenulato. — Shell mitre-shaped, white, 

 decussated with longitudinal strias and slight spiral sulci ; 

 aperture as long as spire, outer lip finely crenulated 

 within. 



287. BRUMAOS (f. 210-212, 290), Reeve.— Variety M. 

 "reticulata" is a little more laterally compressed. 



288. geanata (f. 214), Reeve. 



289. microstoma (f. 291), Sowerby. — Testa angustata, sub- 

 cylindrica, decussata ; anfractibus superne fusco fasciatis, ad 



