320 
PACIFIC SCIENCE, Vol. XI, July, 1937 
among intertidal rocks on the beach at Tomil 
Harbor, Yap. 
GEOGRAPHIC range: USNM records of this 
uncommon Micronesian species are from 
southern Japan, the Gulf of Siam, and the 
Caroline Islands. Not reported from Australia 
or Hawaii. 
JSlassarius jonasi (Dunker, 1846). 
Fig. 31. Nassarius jonasi (Dunker.) Yap Island, 
western Carolines (USNM 614205), 
Characteristically 0.5 to 0.75 inch long with 
a conspicuous parietal callus and prominent 
axial ribs on the body whorl. Shell medium 
brown. Callus, lips, and teeth polished white. 
According to Allan (1950), N. jonasi lives 
in estuaries and lagoons and is ordinarily 
found in shallow water among seaweed. The 
recent Micronesian collections only contain 
one specimen, an individual found living 
among intertidal rocks on the beach at Tomil 
Harbor, Yap. 
geographic range: The above-mentioned 
specimen from the Caroline Islands is the only 
USNM record. Reported from northern Aus- 
tralia and New South Wales, but not from 
Hawaii. Uncommon in Micronesia. 
Nassarius papillosus (Linne, 1758). 
Tinker (1952) p. 82, 2 figs, on p. 83; Morris 
(1952) p. 190, pi. 39, fig. 16. 
Characteristically about 1.5 to 2 inches long 
and light brown or fawn-colored with con- 
spicuous white nodules. 
Ordinarily lives on sandy lagoon floors and 
in sand pockets on small lagoon reefs, ranging 
from low tide line to depths of 10 or 20 feet. 
One specimen was collected at Onotoa from 
a sand pocket below low tide line on the 
leeward ocean reef. Apparently N. papillosus 
is a carnivorous scavenger which feeds upon 
other mollusks and upon decaying organic 
matter. It is frequently collected from lobster 
traps to which it is presumably attracted by 
the bait. 
GEOGRAPHIC range: USNM records of this 
fairly common Micronesian species are from 
Mauritius, Cocos-Keeling Atoll, Hong Kong, 
southern Japan, and from the Philippine, 
Caroline, Gilbert, Line, and Hawaiian islands. 
Reported from northern Australia. 
Family FASCIOLARIIDAE— Spindle Shells 
Genus Fasciolaria Lamarck, 1799 
Fasciolaria filamentosa (Roding, 1798). 
Hirase and Taki (1951) pi. 99, fig. 12. 
Characteristically 4 to 6 inches long and 
yellowish or flesh-colored with many dark 
brown spiral grooves. 
Lives among coral below low tide line off 
the outer edge of seaward reefs. 
GEOGRAPHIC range: USNM records are 
from Tanganyika, East Africa, Mauritius and 
Cocos-Keeling Atoll in the Indian Ocean, 
and from the Ryukyu, Palau, Caroline and 
Marshall islands in the Pacific. Reported from 
Australia but not from Hawaii. Fairly com- 
mon in Micronesia. 
Genus Latirus Montfort, 1810 
Latirus bar clay i (Reeve, 1847). 
Adult specimens characteristically measure 
2 to 4 inches long. Shell whitish with a straw- 
colored periostracum and commonly dark 
brown between the broad axial nodes. Aper- 
ture white within. 
Lives on sandy lagoon bottoms and among 
rocks on seaward reef flats, from near low tide 
line to depths of 20 feet. 
GEOGRAPHIC range: USNM records are 
from Mauritius, Cocos-Keeling Atoll, the 
Philippine, Mariana, and Marshall islands, 
and from Samoa and Fiji. Uncommon in 
Micronesia. Not reported from Hawaii. 
