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Melanellids with mucronate apex, eyihnarip postnuclear spire 
US ie with inner lip not appressed or adnate to the attenuated base 
of the preceding whorl. Type, M. bicinct ; 
21:0598 Mucronalia? bathymetrae (D 1, 1908 sub Stilifer). 
Panama. 
21:0599 Genus Lambertia Souverbie, 1869. 
Melanellids with mucronate apex, pupiform outline, and with 
the inner lip appressed to the attenuated base of preceding whorl. 
Type, L: montrouzieri. 
21:0600 Lambertia cookeana, San Hipolito Point, Baja Cal. 
-21:0601 Cooper, J. G.: 
On a new species of Pedipes, inhabiting along the coast of 
California. Cal. Ac. Proc. 3:294-5 (1863). f. 29. Describes— 
21:0602 Pedipes unisulcata Cooper. 98 (unisulcatus). 
“Shell like a Lacuna, obliquely ovate, the lateral outline 
_ gsubrhomboid, translucent, amber- brown, the spire produced, apex 
obtuse, whorls 4%, the third swollen, with 4 shallow grooves, the 
posterior one only much impressed, but vanishing on the last 
whorl; body with irrégular lines of growth undulating across the 
groove; numerous scattéred impressed points; aperture ovate, 
the other lip acute, purplish, with a double callus within slightly 
tuberculate at the middle; columellar lip white, callous, expanded 
in the plane of the aperture; its inner margin subvertical, with 2 
subacute teeth, the upper largest; a thin callous expanded over 
the inner wall, with a strong lamellar tooth expanded in the plane 
of the outer wall and crossing half the width of the aperture; in- 
tervals between the teeth and walls equal.’’—Cooper. 
Type locality:—San Pedro, California. 
Length 8, width 6, spire 3 mm. 
' Type specimens, reported from estuaries at San Pedro, were 
dead. I found this species years ago living in large numbers at 
La Jolla, in company with Truncatella stimpsoni, on round, water- 
worn boulders where exposed to the full force of the tide at high 
water. More recently I have found a small length of rocky 
beach at La Jolla, where multitudes of sea-anemones were cov- 
ered almost exclusively with shells of this species, some of the 
shells yet alive. The date of this discovery was December 30, 
1918. In the previous four months I had failed to detect a 
single specimen, either living or dead. Tens of thousands were 
present on this date. 
21:0603 Calliostoma supragranosum Cpr. 689. 
“C. t. parva; anfr. v. tumentibus; liris acutis cincta, quarum 
mediae laeves, posticae granosae, basales ix. minores.’’—-Carpen- 
ter, Cal. Ac. Proc, 3:215 (1865). 
Type locality:—-San Diego, California. 
My specimens are from kelp hold-fasts, La Jolla, Cal., and 
measure 12 mm long by nearly equal diameter, the exterior light 
chestnut brown, interior irridescent; whorls 6, apex acute; Keep 
reports it from the breakwater at San Pedro, and says it has 
‘a peripheral circle of alternating chestnut and white spots,”’ 
which appear absent in my specimens, which have been deter- 
hined by Dr. Dall. Santa Cruz, to San Diego, Cal. 
