TURBO.—Ptate XI. 
Species 53. (Mus. Saul.) 
TURBO PORPHYRITES. Turd. testé globosd, subdepressa, 
solidiusculd levigatd, aut obsolete minute sulcatd, pro- 
Sundé umbilicaté ; virescente, olivaceo nebulosé et mi- 
nute articulatd, fascia angustd lutescente medio cingu- 
lata, apice roseo, aperture fauce argented. 
THE PporpHYRY TurBo. Shell globose, somewhat de- 
pressed, rather solid, smooth, or obsoletely minutely 
grooved, deeply umbilicated; greenish, clouded and 
minutely articulated with olive-green, and encircled 
round the middle with a yellowish band, interior of 
the aperture silvered. 
GMELIN, Syst. Nat. p. 3602. 
Hab. ? 
Distinguished by its smooth, polished exterior, and 
minute articulated painting. 
Species 54. (Mus. Taylor). 
Turzo Norrisit. Turd. testa depresso-orbiculari, levigaté, 
Rotellaformi, subtus convexiusculd profunde et ampliter 
umbilicatd ; rufescente-castaned, umbilicorum margine 
nigro, intus margaritaced ; operculo corneo. 
Norris’s Turso. Shell depressly orbicular, smooth, 
Rotella-shaped, rather concave beneath, largely and 
deeply umbilicated; reddish chesnut, margin of the 
umbilicus jet black; operculum horny. 
Trochiscus Norrisit, Sowerby, Mag. Nat. Hist. 2nd. Series. 
Zool. Beechey’s Voyage, pl. 34. f. 14. 
Turbo Rotelleformis, Jay. 
9 
Hab. 
This remarkable species, which has been not unaptly 
regarded by Mr. Sowerby as the type of a new genus, 
approaches the form of 7. versicolor, whilst it has almost 
the depressed growth of a Roéella. 
