Micronesian Gastropods — Demond 
323 
Strigatella paupercula (Linne, 1758). 
Hirase and Taki (1951) pi. 101, fig. 11 [as 
Mitra zebra Lamarck]. 
Characteristically 1 to 1.5 inches long with 
a variable color pattern of yellowish-white 
longitudinal stripes on a dark blackish-brown 
background. 
Lives among rocks and in tide pools of 
seaward reef flats, ranging from the extreme 
seaward edge of the flat to the upper inter- 
tidal zone. Most frequently taken on wind- 
ward reefs but also found on leeward reefs. 
Abbott (1950) reports this species from shal- 
low, lagoon waters at Cocos-Keeling Atoll. 
geographic range: USNM collections are 
from East Africa and the Red Sea through the 
Indian and Pacific oceans to Samoa, and from 
southern Japan and Palmyra south to the 
East Indies and New Caledonia. Reported 
from Hawaii and northern Australia. Fairly 
common in Micronesia. 
Genus Vexillum Roding, 1798 
Vexillum ( Vexillum ) gruneri (Reeve, 1844). 
Characteristically about one inch long and 
white with narrow brown spiral bands. 
Frequently found intertidally along sandy 
lagoon shores. The recent Micronesian col- 
lections include two specimens taken at night 
—one from the intertidal lagoon shore of 
Fig. 34. Vexillum ( Vexillum ) gruneri (Reeve). Ifaluk 
Atoll, Caroline Islands (USNM 614200). 
Uliga Island, Majuro Atoll, and another from 
a lagoon sandspit at Ifaluk. One specimen 
was dredged from 72 feet of water off the 
seaward shore of Bikini Island. 
geographic range: USNM records are 
from southern Japan, the Philippine, Caroline, 
and Marshall islands, Samoa, and New Cale- 
donia. Reported from northern Australia but 
not from Hawaii. Uncommon in Micronesia. 
Vexillum ( Vexillum ) plicaria (Linne, 1758). 
Fig. 35. Vexillum ( Vexillum ) plicaria Linne. Anda- 
man Islands (USNM 305600). 
Characteristically about one and one-half 
inches long and white with dark brown bands 
and a dark brown apex. 
The recent Micronesian collections con- 
tain only one worn specimen, dredged from 
four feet of water off Yap town, Yap. Speci- 
mens from the Philippines in the U. S. Na- 
tional Museum collections were dredged from 
a depth of 60 feet. 
GEOGRAPHIC range: USNM collections are 
from the Andaman Islands and the East In- 
dies to New Guinea, Fiji, and southern Japan. 
Reported from northern Australia but not 
from Hawaii. Uncommon in Micronesia. 
Subgenus Costellaria Swainson, 1840 
Vexillum ( Costellaria ) exasperata (Gmelin, 
1791). 
Tinker (1952) p. 56, 3 figs, on p. 57. 
