312 
PACIFIC SCIENCE, Vol. XI, July, 1957 
ward reef flats, both windward and leeward, 
from about low tide line to depths of 25 feet. 
According to Bayer, M. elata occurs exclu- 
sively on branches of living coral, most fre- 
quently on Porites sp., but also on Stylophora 
sp. and Seriatopora sp. 
geographic range: Apparently limited to 
the Pacific. USNM collections are from Java 
and Borneo east to the Tuamotu Islands, and 
from southern Japan and Hawaii south to 
Queensland, Australia, and Fiji. Fairly com- 
mon in Micronesia. 
Morula fiscella (Gmelin, 1791). 
Tinker (1952) p. 92, 3 figs, on p. 93. 
Characteristically about 0.75 to 1 inch long 
with brown bands and a pale violet aperture. 
The recent Micronesian collections contain 
only two lots of this species, one found under 
rocks in a tide pool on the seaward reef flat 
at Ifaluk and the other found among inter- 
tidal rocks of Tomil Harbor beach, Yap. 
geographic range: USNM records are 
from South Africa, Mauritius, Java, Borneo, 
Gulf of Siam, China coast, southern Japan, 
the Philippines, northern Australia, and Fiji. 
Reported from Hawaii. Uncommon in Mi- 
cronesia. 
Morula granulata (Duclos, 1832) (syn. tuber - 
culata Blainville, 1832). 
Hirase and Taki (1951) pi. 110, fig. 15; 
Tinker (1952) p. 90, 2 figs, on p. 91 [as 
M. tuberculata Blainville]; Morris (1952) 
p. 187, pi. 39, hg. H [as M. tubercula 
Blainville]. 
Characteristically about one inch long. 
Habitat similar to that of Drupa morum. 
geographic range: USNM records are 
from the entire coast of Africa eastward 
through the Indian and Pacific oceans to the 
Society and Tuamotu islands, and from south- 
ern Japan and Hawaii south to the East Indies, 
New Guinea, and New Caledonia. Common 
in Micronesia, but not reported from Aus- 
tralia. 
Morula ochrostoma (Blainville, 1832). 
Tinker (1952) p. 90, 5 figs, on p. 91 (poor). 
Characteristically 1 to 1.5 inches long. En- 
tirely white except for its orange aperture 
which distinguishes it from AI. elata. 
Lives among rocks and corals on seaward 
and lagoon reef flats, both windward and lee- 
ward, from near low tide line to a depth of 
6 feet or so. 
geographic range: Apparently limited to 
the Pacific. USNM records are from the Phil- 
ippines eastward to the Hawaiian and Society 
islands, and from southern Japan south to 
Queensland, Australia, and the Loyalty Is- 
lands. Uncommon in Micronesia. 
Morula triangulatum (Pease, 1867). 
Fig. 20. Morula triangulatum (Pease). Eniwetok 
Atoll, Marshall Islands (USNM 581860). 
Characteristically 0.75 to 1 inch long with 
a purple aperture, and triangular in shape. 
Lives among rocks and in tide pools of 
both windward and leeward ocean reef flats 
from the lower to the upper intertidal zone. 
geographic RANGE: USNM records are 
from the Red Sea, Mauritius, the East Indies, 
the Philippine, Marshall, Hawaiian, Line, Tua- 
motu, Samoan, Tonga, and Fiji islands and 
from the Schouten Islands off New Guinea. 
Fairly common in Micronesia. 
Morula uva Roding, 1798 (syn. nodus Lamarck, 
1816; morus Lamarck, 1822). 
Morris (1952) p. 187, col. pi. 8, fig. 1; pi. 
39, fig. 2 [as M. nodus St. Vincent]. 
Characteristically 0.5 to 0.75 inch long. 
Found in crannies or among rocks on ex- 
posed reef flats, both seaward and lagoon. 
