228 
Annals of the Transvaal Museum. 
The following are measurements of a typical nest taken near Lyttelton 
Junction 
Depth of tube 315 mm. 
Width at the entrance (inside edge of rim). 17 *65 mm. 
Length of upper, oblique, portion 70 mm. 
Width at the narrowest part of tube 15 mm. 
Width at the widest part of tube 20 mm. 
Length of refuge chamber 28 mm. 
Distance of refuge chamber from the bottom 
of tube. . 20 mm. 
Breadth of external lid 18, | mm. 
Length of lid (front to back) 15 mm. 
Thickness of lid J mm. 
Breadth of hinge 15 mm. 
Pelmatorycter pretoriae var. rufescens, Hewitt. 
Locality : Roodeplaat. 
The nests of this species did not differ appreciably from those of 
P. pretoriae , but were not so deep nor so large. 
The following are measurements of a typical nest from Roodeplaat : — 
Depth of tube 210 mm. 
Width at the entrance (inside edge of rim). 8 mm. 
Length of upper, oblique, portion 51 mm. 
Width at narrowest part of tube 6J mm. 
Greatest width of tube (no blind passage). 11 mm. 
Breadth of lid 8§ mm. 
Length of lid (front to back) 10 *65 mm. 
Breadth of hinge 11 mm. 
Thickness of lid J mm. 
Pelmatorycter brevipalpis Hewitt. 
Locality : Roodeplaat. 
Pelmatorycter, cp. brevipalpis, Hewitt. 
Locality : Wonderboompoort, Schoemansrust, Lyttelton Junction, Hatfield, 
and Koedoespoort, all in Pretoria District. 
The nests from the locality where the type was taken had two distinct 
entrances, but subsequent observation showed that this was only a stage 
in the making of a new nest, one of the entrances being blocked up later. 
In the latter condition, the nests were somewhat like those of P. nudus, 
the entrance being covered by a hood and not a hinged lid. The lid is fixed 
on for about three-quarters of the circumference, the remaining quarter 
being free and folding over the lower lip. The hood protrudes in front, 
so that when folded down, the edges meet the lower anterior rim ; there 
are minute tooth or claw marks scattered over the under-surface of the hood. 
Some nests were latterly discovered, which had a small side chamber, 
half an inch from the bottom and about half an inch deep, similar to those 
sometimes seen in the nests of P. pretoriae. 
