Be and | in labes showing ae of spiral strie. Umbili- fe | 
18 narrow and deep, its eth contained 44 times in greatest di- Pee 
neter of the shell. |§ Aperture wider than high, shaped much as 
P.conspectum. Alt. 1.14, greatest diam. 1.85 mm. Fish 
amp, Fresno county, California.’ —Pilsbry, Nautilus, 11: 154. Ap 
898. 
Mectum Orcutt Dall. 
‘Shell icon stout, smooth but not Eh light warm brown 
rgin being the anterior; plug glundiform, smovth, rounded with- 
out mucro; operculum brown, thin, smooth, Lon. of shell 2; 
gemmeter 5mm. San Diego, California, abundant under stones 
BR. Orcutt). This is the smallest and the only smooth Catif- 
nian species of the genus.’—Dall, U S na mu pr 8: 541. 
RIS MONTEREYENSIS Cooper Ca ac pr 2: 
Pale yellowish with scattered black ya for entirely hae 
ntle rough tubercalate, or nearly smooth, dorsal tentac ob- 
, branchial rays bean short, in 8 divisions, forming a 
a Barkers at ri water, oi in size and deeper color: 
elub-shaped, the branchial 7-8-parted, Penge and : 
ng- 
reutt, No. 19 (young? fide Dall), from Bail Diego, appears 
ibed among my notes as follows :—animal translucent white, 
or less long, the back of mantle sarin A sprinkled with 
uw dots and blotches of brownish black which are most con- 
2 ot ora behind oie ea near the aisites of the _ back, 
bus? ai laba ter ¥ ia take depressed- 
1 tentacles short, acute, branchiw of 1? Bair a nde ex- 
ndin g in the posterior fifth of the body. aos tenths, 
ath one inch. _ ‘Under cing San ie A only one 
