TROCHUS. 45 



at the periphery ; color whitish, longitudinally flammulate with 

 brown, base radiately marked with narrow brown stripes, often 

 broken into tessellations ; sculpture consisting of about four spiral 

 cinguli, of which the middle two are granulose ; the upper and lower 

 are wider, smooth or obsoletely gran osc : base convex, with 6 or 7 

 concentric narrow feebly granose lirse, the interstices minutely 

 concentrically striate ; aperture oblique, rounded rhombeidal, outer 

 lip lirate within, columella and basal lips thickened, denticulate; 

 columella folded above ; umbilical area white, false umbilicus very 

 narrow, with a spiral sulcus and fold within. 

 Alt. 15-17, diam. 14-16 mill. 



Indian Ocean; Bombay; China(?). 



T. scabrosus PIIILIPPI, Zuittrhr. f. ^fal. 1850, p. 190. Conclnjl 

 Cab. p. 29.', t. 43, f. 3. FISCHER, Cory. V!r. p. 335, t. 104, f. 2. 



Unfiyured, insufficiently described species of Trochus, Polydonta, etc. 

 P. PALLIDULA A. Adams. (PL 42, fig. 0.) 



P. testa elevato-conica, albida, maculis luteolis picta ; anfractibus 

 planis, cingulis tuberculorum ornata, tuberculis inferne in costas 

 excurrentibus ; basi convexa, cingulis granosis ornata, cavitate con- 

 torta umbilieum simulante; columella superne soluta, margine 

 tuberculato-dentato; labro intus lirato, inferne denticulate. 

 AD., P. Z. S. 1851, p. 155. RKKVK, Conch. Icon., f. 92. 



Habitat unknown. 



P. CORRUGATA A. Adams. 



P. testa elevato-conica, albida, rufo-fusco variegata; anfractibus 

 phmiusculus, sulcis transversis sulcisque obliquis nodoso-reticulatis; 

 inferne oblique costatis, costis nodosis ornatis; basi planiuscula, in 

 meclio concava, excavata, umbilieum mentiente; columella superne 

 soluta, margine tuberculato-dentato ; labro intus lirato, inferne 



denticulate. (A. AD., P. Z. S. 1851, p. 155.) 



Habitat unknown. 



P. (IXFUNDIBULUM) XEPTUXi A. Adams. 



P. testa elevato-conica, lateribus convexiusculis, viridi-fusca ; an- 

 fractibus planis, cingulis granosis transversis ornatis, ultimo angulato, 

 basi planiusculo, cingulis granosis instructo, centro excavate, 

 umbilieum mentiente; columella superne soluta, margine tuberculato- 

 dentato, labro intus lirato, ad marginem intus taevigato. 



(A. AD., P. Z. S. 1854, p. 132.) 



China (Mus. Cuming.) 



