THE JOMON PERIOD 73
Coastal communities expanded, leaving the remains of many im-
mense kitchen middens. One of the two Kasori shell mounds is 170
meters long, and the other 100. Middens are scattered around bays
and major rivers, largely in north, east, and south Japan. A few have
been found in such scattered areas as Hokkaido; on the Sanriku coast
of north Honshu and Matsushima Bay; along the Tone, Ara, Tama,
Tsurumi, Ooka, Hanamizu, and Sagami rivers of the Kan
to;
in the
Atsumi and Ise bays of the south Tokai coast; along the Inland Sea;
around the Ariake and Kagoshima bays of Kyushu; and on islands
farther south. The generally rugged, beachless Japan Sea coast has
very few middens. Rings on shells show that most of the clamming
was done in early and late spring (65 percent) followed by late summer
(15 percent). Larger fishhooks were used, and detachable barbed har-
poon heads were developed in north Japan. Deep-sea fish, especially
tuna
(maguro)
and bonito
(katsuo)
supplemented the supply of inshore
fish. Porpoises, salmon, and trout were important food sources for the
northern population. Dugout canoes, in some cases made by burning
out logs, were about six meters long and paddled with one or more
oars,
aided by some kind of outrigger. Deer and boar bones are rather
common in Late Jomon sites, but gradually deer disappeared from
northern areas, perhaps because of
overhunting.
Fewer boar bones are
found in the Latest Jomon sites. By and large, the acquisition of food
had a seasonal cycle, beginning with clamming in the spring and
continuing with fishing in the summer, nut gathering in the fall, and
hunting in the winter.
Most Late Jomon villages continued to be occupied into the Latest
Jomon phase. Their shallow pit houses have been hard to locate. In
the Kanto, one or more in a group of about ten had floors that were
paved with smooth stones. These appear to have been houses of sha-
man chiefs, as some contained phalli and abnormally shaped pots; but
not all of these floors had holes for posts, and some may have been
open places for communal rites.
In the Late Jomon, chipped stone axes - profuse in the Middle
Jomon - virtually disappeared. There was less need for them in
coastal areas, and food gathering elsewhere was more diversified. The
few found are often not large, and some are pecked, ground, and
polished. Most are broken. Arrowheads may be tanged and were used
with a one-piece bow about a meter in length, a weapon thought to
have had a range of between fifty and sixty meters. Because small
points could not have been very effective against large creatures, they
were probably tipped with alkaloid poison from the root of aconite
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