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Psyche 
[Vol. 89 
Table 2. Morphological measurements of soldiers (measurements expressed in 
millimeters; mean with standard deviation in parenthesis). 
Species 
Mandible 
Length 
Nasus 
Length 
Lateral 
Length 
of 
Head 
Maximum 
Head 
Width 
Head 
Depth 
Total 
Body 
Length 
Orthognathotermes 
2.96 
0 
3.06 
2.09 
1.83 
9.25 
gibberorum 
(0.11) 
— 
(0.08) 
(0.06) 
(0.05) 
(0.40) 
Svntermes 
2.45 
0.16 
5.20 
5.15 
3.17 
15.57 
dirus 
(0.11) 
(0.02) 
(0.19) 
(0.15) 
(0.14) 
(0.65) 
Cornitermes 
1.36 
0.36 
3.90 
2.67 
1.95 
9.55 
cumulans 
(0.78) 
(0.03) 
(0.11) 
(0.09) 
(0.07) 
(0.42) 
Proeornitermes 
1.14 
0.45 
2.46 
1.98 
1.57 
7.47 
araujoi 
(0.05) 
(0.03) 
(0.03) 
(0.04) 
(0.05) 
(0.21) 
Armitermes 
0.58 
0.91 
2.05 
1.10 
1.04 
5.35 
euamignathus 
(0.02) 
(0.05) 
(0.05) 
(0.04) 
(0.05) 
(0.20) 
Nasutitermes 
0.17 
0.63 
1.65 
1.05 
0.82 
4.32 
sp. 
(0.03) 
(0.02) 
(0.64) 
(0.35) 
(0.34) 
(0.14) 
Velocitermes 
0.15 
0.80 
1.65 
1.05 
0.82 
4.32 
paucipilis 
(0.18) 
(0.03) 
(0.64) 
(0.35) 
(0.34) 
(0.14) 
Cortaritermes 
0.15 
0.61 
1.64 
1.08 
0.80 
3.95 
silvestri 
(0.02) 
(0.03) 
(0.06) 
(0.06) 
(0.06) 
(0.25) 
Note: Grigiotermes is excluded for it has no soldiers. 
two similar species have very similar workers-soldier ratios. Armi- 
termes occupies an intermediate position while Orthognathotermes 
has a large number of workers per soldier. 
II. The Mounds 
A. Mound size and form 
Table 4 presents data on mean heights, widths and lengths of ten 
mounds for each of the nine species of termites. Figure 3 (a-r) con- 
sists of two photographs of each species mound, one of an entire 
mound and the other of a mound in transverse cross-section. As can 
be seen from the data and the photographs, the shapes of these 
mounds range roughly from an inverted cone ( Cornitermes ) to a low 
dome ( Orthognathotermes ). 
