MOLLUSCOUS ANIMALS. 
113 
This genus is most like the former, but it resembles some Ricinulce and Purpura in form ; it differs in 
the inner lip being rather extended and veined. When young the lips are simple, the throat smooth, and the 
pillar lip concave, with a distinct oblique plaiting in front, margining the canal. 
E NOIN A ZONATA. 4. 
Shell ovate, fusiform, ventricose, solid, dark brown, with a central white band, longitudinally plaited, 
finely spirally striated ; spire conical, acute, nodulose ; last whorl angular, with four or five nodulose spiral 
ridges; throat white ; outer lip three or four toothed. Axis If inch. 
Inbab. Atlantic Ocean. 
Engina elegans. 
Shell ovate, fusiform, solid, dark brown, with a grooved central and two narrow anterior spiral bands of 
white beads, slightly longitudinally plaited, and closely spirally striated ; spire acute, nodulose; last whorl 
angular behind, with five or six rather beaded spiral ribs in front; throat pale brown. Axis 3i inches. 
Inhab- Atlantic Ocean. 
TURBINELLA. 
The tentacles short, small, compressed, with eyes about one third from the tip. 
The operculum rather produced behind, thick, with a thick roundish rib on the outer edge of the inside. 
The feet, tentacles, and trunk of T. craticulata and T. angulata are bright red ; the grooves on the throats 
of these extend up the cavity of the shell, so that the grooves on the throat are not the marks of age as in 
many shells. - 
Turbinella Stokesii. 
Shell ovate, fusiform, ventricose, solid, brown, slightly spirally striated ; spire acute, conical, nearly as 
long as the mouth; whorls, upper, with a row, and last with two rows of conical tubercles, and with two close 
sub-tubercular cross bands in front, the two front rows placed together. Mouth ovate ; throat white, slightly 
striated; inner lip concave, with three small folds in front. Axis 12 inch. 
Inhab. Port Praya. 
Named in honour of the late Captain Stokes, the commander of one of the ships employed in the survey 
of the Magellan Straits, well known for his great attachment to science. 
Turbinella rigida. Gray in Wood's Cat. 
Murex rigidus. Wood, Cat. Sup. t. 5. f. 3. 
Shell fusiform, elongate, solid, purplish (very white when bleached), covered with a thin smooth olive 
periostracum, finely spirally striated; spire acute, attenuated; whorls rounded, with large oblong rounded 
distant tubercles, the front of the last spirally ribbed. Mouth ovate, purple or red; throat slightly grooved ; 
pillar, with three small plaits in front ; canal slightly perforated. Axis inches. 
Inhab. Pacific Ocean. 
Somewhat allied to Turbinella Tarentina ( Fasciolaria Tarentina, Lam.), but differing in colour. 
Turbinella crocea. 
Shell ovate, turreted, thick, spirally striated, and coarsely longitudinally plaited, white, brown at each 
end ; spire tapering, larger than the mouth; apex ovate, brown; whorls rounded, upper with a sutural band 
Q 
