MOLLUSCOUS ANIMALS. 
139 
Shell obovate, conical, solid, black, with zigzag cross bands or spots of white ; spire conical, rather shorter 
than the mouth, brown, rounded, whorls flat, the last very obscurely keeled near the front. Mouth ovate, 
throat black, with a white spiral band in front; columellar lip brown. Axis 8 ; diam.3 lines. 
Inhab. Coast of Peru. Arica. T. II. Fryer, Esq. 
The young are generally all blackish, with the white band on the front of the whorl visible externally, as 
well as in the throat. They vary greatly in the degree of the roundness or keeling of the last whorl, like the 
rest of the genus. 
Littorina Squalida, t. 34./. 12. Brod. & Soiv. Zool. Jour. iv. 370. 
Shell ovate, conical, ventricose, solid, greenish grey ; spirally striated with narrow brown spiral lines ; 
spire conical, acute. Mouth roundish ; outer lip thin, brown varied ; throat brown, with three or four darker 
bands; inner lip white, broad, and concave in front of the axis. 
Inhab. Icy Cape. 
When the surface is weUthered, the brown lines are more distinctly seen and have somewhat the appear- 
ance of being raised. 
Littorina fasciata. 
Shell obovate, suborbicular, with oblique transverse brown bands; the spire shorter than the mouth; 
apex acute, purplish, whorls convex rounded, concavely impressed near the suture; suture indistinct. Mouth 
very oblique with the axis of the shell, half round: lips and throat pale brown; outer lip black spotted by 
the tips of the bands. Axis 1 inch, 3 lines; diam. 1 inch, 1 line. 
Inhab. Pacific Ocean ? My collection. 
Littorina limax. 
V £ i r, r ^ rj < j _ | 
< Limax. Martyn. Univ. Conch. 
Shell conical, ovate, solid, pink or white, smooth ; spire conical, acute, rather larger than the mouth ; 
whorls slightly convex, the last angularly keeled. Mouth small, ovate; outer lip white; the columellar lip 
and throat intense orange ; the axis impressed, covered by the columellar lip. Axis 8; diam. 5f lines. 
Inhab. Society Islands. My collection. 
Littorina minima. 
Turbo minimus. Gray. MS. — Wood, Cat. Sup. t. 38./. 29. 
Shell obovate, solid, yellow or white, with numerous regular minute dots placed in oblique cross bands ; 
spire blunt, shorter than the mouth: throat brown; inner lip purplish. Axis perforated with a slight pit. 
Axis 3 lines ; diam. 24 lines. 
The perforation gives this shell much the appearance of a minute Natica. In one specimen it is deep, 
in the other there is a slight impression of the same size as the perforation. 
Littorina nodosa. 
Shell obovate; black or brown, marbled with white in front ; spire short, much shorter than the mouth ; 
whorls convex, with a spiral series of large red or white tubercles near the suture, the last with a similar sub- 
central series of rather large ones, and small irregular tubercles in front. Mouth ovate, very oblique ; 
columella and outer lip varied with white; throat black, with a narrow white spiral band in front. Axis 5 ; 
diam. 4 lines. 
My collection. 
T 2 
