132 BUREAU OF AMERICAN ETHNOLOGY [Bull, 177 
KORIABO INCISED 
Paste: Majority of this decorated type is on the paste of Koriabo Plain, with 
a few on Warapoco Plain. See those type descriptions for details of paste, 
temper, color, ete. 
Surraces: Like the plain pottery types mentioned above with the exception that 
all the decorated sherds tend to be in the upper end of the range of better 
smoothed and more even surfaces. 
Form: 
Rims: Slightly thickened and everted with a flat or beveled top and rounded 
lip; exteriorly thickened, tapering to a rounded lip. 
Body wail thickness: 6-8 mm. 
Body diameters: 18-24 cm. 
Bases: None detected; probably flat, flat pedestal, or rounded like those of 
Koriabo Plain. 
Vessel shapes reconstructed from sherds: 
1. Globular jars with rounded or slightly carinated body, medium to 
long insloping neck, slightly thickened, everted rim with a flat or 
beveled top, 1.0-1.5 em. wide, with a rounded lip. Mouth diameter 
14-31 cm.; body diameter 17-86 cm.; neck height 1.5-4.0 em. (fig. 
53-1, top). 
2. Globular jar with constricted mouth, exteriorly thickened beveled 
rim with a tapered lip; mouth diameter 20 em.; body diameter 24 
em. (fig. 53-2, top). 
DrcorATION (pls. 33, 36, a—e, i) : 
Technique: 
Incised decoration occasionally in association with low relief, applique 
modeling. Incised lines 0.5-1.0 mm. wide, V-shaped, and less than 
1 mm. deep, drawn into the clay when the surface was dry enough 
to leave a distinct, sharp line. Execution very consistent, carefully 
applied, corners or joining lines do not overlap; parallel lines fairly 
evenly spaced. 
Modeling is in the form of low applique ridges, nubbins or small faces, 
rising 24 mm. above the surface. Low ridges are 3-6 mm. wide; the 
faces range in diameter from 1.0-1.5 mm., with a few oval in shape 
measuring 1.3 by 1.7 em. The small nubbins are usually 3-4 mm. in 
diameter. 
Motif: 
The designs must be reconstructed entirely from sherds, therefore there 
is some possibility that all of the incisions are in one way or another 
associated with low relief applique. Some of the larger sherds sug- 
gest the incised designs were put on the surfaces between the low 
applique to fill in the blank areas. 
The incised lines consist of a variety of parallel lines both curvilinear 
and rectilinear, stepped designs, zigzag, diagonals, wavy lines; less 
commonly spirals are used in the overall design. Incisions are 
usually spaced 5-10 mm. apart; rarely 15 mm. 
TEMPORAL DIFFERENCES WITHIN THE TYPE: None discernible in the small sample 
(Appendix, table 17). : 
CHRONOLOGICAL POSITION OF THE TYPE: Koriabo Incised is most common at N-2, 
in the middle of the sequence, where it reaches a popularity of 9 percent; it 
appears to be absent from the earliest and latest levels represented in the 
seriated sequence (fig. 57). 
