A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Umbonium costatum
,
Taxonomic Information
Class
GASTROPODA
Order
ARCHAEOGASTROPODA
SuperFamily
TROCHACEA
Family
TROCHIDAE
Page
Shells of Japan
130
