OYCLOPHORIDZ. 37 
whitish ; spire broadly conoidal, rather blunt; whorls 6, mode- 
rately convex, the last one very large, girdled at the periphery 
with a very obsolete white keel, and with many blackish-brown 
bands beneath; umbilicus narrow; aperture oblique, large, 
nearly circular, somewhat pearly inside; peristome white, 
broadly expanded, continuous, shortly affixed to the penult 
whorl, columellar margin reflected. Operc? Height 35, 
. greatest breadth 61, least br. 45 mill. 
Cyclostoma speciosum, Philippi, in Z. f. M. 1847, p. 123; Pfr. Ic. 
n. 184, p. 170, t. 25, f. 1-3. 
Cyclophorus speciosus, Pfr. in Z. f. M. 1847, p. 107; Consp. n. 66 ; 
Gray, Cat Cycl. p. 15, n.2; Pfr. Pneum. Mon. p. 156. 
Locality unknown. 
3. CychoPpHORUS SIAMENSIS. 
Shell turbinate-depressed, solid, smooth, chestnut-coloured, ele- 
gantly painted with angular whitish stripes; spire shortly 
turbinate, with the apex rather blunt; whorls 5, convex, rather 
flattened near the deep suture, the last one rounded at the 
periphery, obsoletely compressed around the funnel-shaped um- 
bilicus ; aperture little oblique, large, circular, whitish inside ; 
peristome rather thickened and reflected, yellowish-flesh- 
coloured, shortly affixed to the penult whorl. Operc? Height 
29, greatest breadth 51, least br. 40 mill. 
Cyclostoma Siamense, Sow. Thes. Suppl. n. 178, p. 158, t. 31, A. 
f. 292, 293; Pfr. Ic. n. 331, t. 42, f. 5, 6. 
Cyclophorus Siamensis, Pfr. Consp. n. 67 ; Pneum. Mon. p. 56. 
Hab. Siam. 
4. OCYCLOPHORUS TUBA. B. M. 
Shell suborbicular, rather depressed, thin, smooth, whitish, varied 
and clouded with reddish brown ; spire short, rather flattened, 
acuminated at the apex; volutions 5, flattish, the posterior 
carinated, the last very large and rounded; aperture very large, 
circular, expanded, whitish; peritreme whitish, thin, broad, 
revolute, interrupted over the last volution ; umbilicus large. 
(8 uaa reddish-horn-coloured. Height 25, breadth 45 mill. 
(Sow.) 
Cyclostoma tuba, Sow. in Proc. Z. S. 1843, p. 83; Thes. n. 91, 
p. 122, t. 27, f. 129, 130; Pfr. Ic. n. 183, p. 169, t. 23, f. 10, 11; 
Souleyet, in Voy. Bonite Moll. t. 30, f. 25-27. 
Cyclophorus tuba, Pfr. in Z. f. M. 1847, p. 107; Consp. n. 68; 
Gray, Cat. Cycl. p. 16, n.3; Pfr. Pnewm. Mon. p. 57. 
8. A little smaller and more depressed, with the last whorl sub- 
carinated at the periphery, and with the peristome not so 
broadly expanded, scarcely reflected. 
Hab. Malacca, Mount Ophir (H. Cuming). 
