174 MOLLUSCA. 
Figure 203, profile view of the shell; 203 a, base of the shell ; 203 4, 
sculpture of the shell, magnified ; 203 c, 203d, two sides of the oper- 
culum. 
TuRBO LACINIATUS (Gould). 
Testa rudis, depresso-conica, cinerea roseo-tincta: spira anfractibus 
quatuor, trregulariter plicatis, plicis ad peripheriam acutissimis, 
dilatatis et in spinis elongatis compressis excurrentibus: basis con- 
veriuscula, liris muricatis concentricis decem ad duodecim insculpta : 
apertura circularis ; columella levi, arcuata, rosea; labio perobliquo: 
faux margaritacea. 
Turbo laciniatus, Goutp; Proceed. Boston Soc. Nat. Hist., i1i. 90. 
March 1849. Expedition Shells, 55. 
SHELL small, rude, low conical, cinereous, tinged with rose-red, es- 
pecially beneath; whorls about four, conical, irregularly undulated 
with small, unequal folds, the lower edge sharp and lJaciniated with a 
range of long, unequal, folded, compressed spines, connate at their 
bases; base somewhat convex, imperforate, marked with ten or twelve 
concentric ranges of sharply muricated strie; aperture circular, 
lip very oblique; columella smooth, arcuate, rose-coloured ; interior 
nacreous. 
Opercle stony, inner surface convoluted, flat, covered with a chest- 
nut epidermis; central boss kidney-shaped, roseate above, paler and 
somewhat convoluted below, minutely indented; margin excavated. 
Diameter three-fourths of an inch; axis three-fifths of an inch. 
Obtained at Manila. 
This species is closely allied to 7. rhodostoma, but wants the 
double series of spines at the periphery. 
Figure 204, profile view of the shell; 204 a, base of the shell ; 204 4, 
details of sculpture, enlarged ; 204 c, the operculum. 
