326 COILED BASKETRY IN BRITISH COLUMBIA [ETH. ANN. 41 
THE RuomBorp 
As a separate figure, the rhomboid is not especially common. 
Sketches 568 and 569 show its ordinary arrangement, and its surface 
treatment which causes it to be called a “big bead,” ‘“‘dentalium,”’ 
“hairy caterpillar,’ or even a “spot.’’ Sketches 303 (p. 320), 570, 
and 571 are most commonly called “arrowhead” and “dentalia.”’ 
Evidently the name arrowhead refers to the half arrowheads along 
the edge, and dentalia to the rhomboids. Other names such as 
“necklace” and ‘‘embroidery”’ refer to the pattern as a whole. The 
name “xanaxa’in’’ is applied to both. Occasionally the rhomboid 
is called a “spearhead,’’ probably because of its acute angles. 
571 573 
TAMA As a 
Vn 3 : fA -~ 
577 
. 579 580 582 
Tur TRAPEZOID 
Trapezoidal figures, not necessarily to be regarded as truncated 
triangles or imperfect squares, are very rare and have been designated 
chiefly as representations of the moss cake (¢sznéka), and teeth or 
butterfly wings. Their assignment either to realistic or geometric 
art seems quite arbitrary, in spite of their likeness to the objects 
whose names they bear, inasmuch as they are lacking in the usual 
embellishments which distinguish realistic work, and are likewise 
perfectly geometric in their composition. (Sketches 572-575.) 
The derivation of the designs seen in sketches 577 and 578, in- 
terpreted as “‘clouds,’’ is known to have developed from those 
given in sketches 93 and 94 (p. 310). 
