200 MOLLUSCA. 
Lirrorina scuTuLata (Gould). 
Testa parva, ovato-conica, plerumque erosa, castanea vel hvida albido 
enordinatim maculata, strus obsoletis cincta: spira anfractibus quin- 
que, ultimo ventricoso: apertura late ovata; labro acuto, pallido ; 
columella planata, antrorsum expansa ; fauce livida. 
Iuttorina scutulata, Gouin ; Proceed. Boston Soc. Nat. Hist., iii. §3. 
March 1849. Expedition Shells, 53. 
SHELL small, ovate-conic, inelegant, usually eroded and dead at the 
surface, of a chestnut or dusky leaden hue, sparsely and obscurely 
tessellated with whitish; with a few obsolete revolving striae: whorls 
five, convex, the last ventricose, rarely with the vestige of an angle: 
aperture not quite half the length of shell, broad-ovate ; lip sharp and 
pale: columella flattened at base, which is somewhat expanded : inte- 
rior livid. 
Length of the axis three-fifths of an inch; breadth two-fifths of an 
inch. 
Inhabits Puget Sound, Oregon. Pickering. 
Allied to L. tenebrosa, but has a more elongate and acute spire ; also 
to L. lepida, but is more inelegant, and without the colouring of the 
base and aperture of that shell. 
Figures 241, 241 a, two views of the shell. 
Lirrorina acuminata (Gould). 
Testa parva, solida, nitida, elongata, conico-turrita, livida obscuré Jlam- 
mulata interdum maculis albidis articulatis cincta: spira acuta, an- 
Sfractibus sex, planulatis, ultimo subangulato; sutura profunda: aper- 
tura ovata; columella nitida, mori-tincta. 
Littorina acuminata, Goud ; Proceed. Boston Soc. Nat. Hist., iii. 
84. March 1849. Expedition Shells, 53. 
