MOLLUSCOUS ANIMALS. 
143 
The following notes relating to such shells as are represented in Plates XXXIII. to XLIV. and not 
referred to in the foregoing pages, have been put together at the request of Captain Beechey, by 
„ G. B. SOWERBY, F. L. S. 
Margarita striata, t. 34. f. 11. Brod. and Sowerby , Zool. Journ. iv. Conch. 
Illust. Margarita, f. 18. 
Trochiscus NORRisil, t. 34. f. 14. Sowerby, in Mag. of Nat. Hist. 2 d. series. 
Turbo Niger, t. 3 Q.f. 1. Gray, MS. in Brit. Mas. 
Helix mandarina, G 34./. 2. and 38. f. 3. Gray, MS. in Brit. Mus. 
Shell subglobular, thick ish, smooth, chesnut brown, spire as long as the aperture, conical, blunt, whorls 
five and a half, convex ; suture deep, its edge rounded ; last whorl with a narrow white spiral band ; aperture 
broadly semilunate, lip reflected ; a nearly obsolete tubercle at the front of the columella. Length 0- 75, 
breadth 0* 9 inch. 
Inhab. Loo-Choo. 
In some specimens there is a slight angle near the middle of the last whorl. The whorls are all striated 
by the lines of growth. 
Helix luhuana, t. 35. f. 4. 
Shell suborbicular, rather depressed, slightly and irregularly wrinkled by the lines of growth, of a 
rather dull brown colour, with a narrow darker band about the middle of the last whorl ; spire only slightly 
elevated, of five and a half convex whorls ; suture distinct ; aperture broad, its margin rather thickened and 
reflected, particularly at the lower and anterior part near the large umbilicus. 
Inhab. Loo-Choo. 
Helix rosacea, t. 38. /. 2. 
Shell suborbicular, rather depressed, thickish, whitish or light brown with a chesnut band in front of 
the suture, and another round the middle of the last whorl; spire slightly elevated, of five whorls, usually 
chesnut coloured and transversely wrinkled, most strongly at the suture, which is not deeply impressed, but 
nevertheless distinct ; aperture oblique, broadly semilunar, its margin very slightly thickened, but not 
reflected ; umbilicus small, surrounded by a chesnut coloured band. Axis 1. , breadth 1* 6 inches. 
Inhab. 
A delicate rosaceous tint is usually suffused over the surface of this species. 
Helix DESPECTA, t. 38. f. 5. Gray, MS. in Brit. Mus. 
Shell nearly globular, thin, smooth, pale brown ; spire somewhat elevated, blunt, of four and a half con- 
vex whorls; suture deep, aperture broad, rounded; lip very slightly thickened, and reflected ; umbilicus 
rather small. 
Helix Fraseri, t. 38. /. 6. Gray, Zool. Proc. 1836, p. 63. 
Shell nearly globular, smooth, subpellucid, light brown with chesnut coloured bands, various in width ; 
spire somewhat elevated, of six convex whorls ; suture distinct ; aperture large and wide, lip thickened and 
reflected, wider at the anterior part next to the umbilicus, which is covered by it. 
