Sa ee ee ae ee ae Aas, cP RAS Sega tay me et FT SN 
107 
Macrocyclis sportella Gould. 
Whorls 5, the superior part of the last 
one fla x upon approaching the apert 
ure, rounded elow; very light apple 
green, dull, very closely and _= shar 
= edema reticulated by slight, revolving 
lines; rae ‘ate, umbilicus mod- 
erate a Pdosp meter 18 mm. Puget 
und ee San ies: California (Orcutt). 
SELENITES VANCOUVERE 
arge, whorls 5, the superi rt o 
the last one flattened upon approaching 
the rounded neath; bright 
ght revolving lines, suture 
umbiticu abe d a! moderate width 
30 
and Oregon; 
Washingt on; Ala aoka: .  ewnenen Idaho. 
Macrocylis vancouverensis Lea. 
Tryon, Mon M 3%t3 
igs et Ris has gg 
essed; whor 
mbilicate, Pale arn chloe! Diameter 
2.5 mm. n Diego to Trinity county, 
California. 
4 Macrocyclis ore Newcomb, 
Tryon, Mong TM 3, t 3 f 9. 
SPORTELLA STEARNSII Dall. 
“Shell o 
1 unknown, is co 
tained iL 3 ig collection. "Dall 
u 885, 
t1998). 879, t 87, 12 
SUCCINEA STRETCHIANA Bland. 
Keep, West Coast reed Is, 129. 
Tryo on, Monog T M 19, t 2 f 
lobose-conic, thin, paltantn shining, 
© Striatulate; spire short, obtuse, suture 
impressed; yhorls 3, convex, last oF 
arcuate, slightly thickened ponish 
oO e lor. o 6.25, diameter 5 mm. 
Sub-alpine Sierra Nevada, California 
and Nevada, 4,000 to 6,500 feet al itude, 
MYSELLA ALEUTICA Dall. 
Small, solid, ovate, white, 
overed with polished straw- 
> sei epidermis with usually 3 or 4 
darker colored zones: beaks 
. ded, ends an as 
Ives moderately vex 
festh abrieer in the right valve, anterior 
ag r rrow and rather ir- 
ors “pase orem rounded, 
4.3) alt... 33 
porhie ro i ‘the "Ale eutians, 
The West American Scientist. 
108 
and east to Sitka bay, Alaska.’’—Dall, U 
3 Na u pr 21: S028, Sl, t ST f 6 (1808). 
MYSBLLA PEDROANA 
“Shell i e, thin, pace: 
ap conc ite, with a Coneentaiiert 
ugose Gale- aan nish epidermis ae 
which, in the type, adheres a good 
of blackish oxide of por Bhi exe 
spicuous; surface with c €, "pg taagee 
incremental lines; inequilateral; the y 
terior side short, dorsal margins fopatene 
ipa mer the distal and ret a the 
which la early 
posterior one shorter and stouter, 
resillum subumbonal and very small; 
pr ieee Tpaosy' small, the peiler. scar 
lin alt. 7.3, diam. A 
aineie shell “found on the beach ae “San 
eee Sper ar BD Dall U S Na Mv, pr 
1: 893, 881, t 88 f 4 (1899) 
MYSELE A PLANATA Dall. 
Mu pr 881, .892 t 8&8 f 12 
Dall, U $8 Na 
(1899). 
ellimya planata use; 
Bering Strait, | south to the Aleutians 
and east the snargnae Islands, 
Alaska. 
as ee TUMIDA Cpr. 
, U S Na Mu pr 21; ‘S81, 892, t 81 £7 
149 
Tellimya tumida Cpr, Suppl R_ Brit 
Assoc 1863: 88, 97, 129 (1864). Phila ac pr 
Ee 
Alaska peninsula, south to San Diego, 
California. 
in, mod 
erately compressed, higgene | covered with 
a conspicuous, thin, nkled, 
glossy Derios stracum; 
i both 
b 
Straight; beaks inconspicu won ae 
with strong, irregular increme 
but no radial sculpture; 
& 
valve with 
right bids with the tooth _ 
oped; right dorsal va 
eotu al of the left vate a little, 
but there are no — lamellae. Lo 
13, Dr e 
* Mu pr 21: 888 
8g, t 87, tl 8 (1890). 
PRYCINA: RUGIFERA tg 
all U S Na Mu pr 21: 887, 880, t 87 f 4 
1s98), 
Pythina rugifera Cpr Supple R Bri 
aenes 1863; 602, 643 (1864). Phila ac pr 1866: 
Lepton rude (Dall ms) Whiteaves y 
Progr Geol Surv Canada 1878-79: 198 
Lives attached to the abdomen of Gebia 
Bee cece Dane, a burrowing crustacean. 
uge 
mh 
Pa 
