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Annals of the Transvaal Museum 
of both bones, right up to their distal ends, was cracked, but otherwise perfect. 
The distal two-thirds of the bones showed a remarkable feature. The two 
plate-like portions of the pubes were coalesced along the middle and formed 
only one bone. No division between the two pubic plates could be found. 
Through the cracks it was apparent that the pubic plate was very thin 
along its middle line. During excavation everything was done to keep 
the pubes intact, and they were even got out on a lump of rock, which 
was placed in a box. While I was busy with the excavation of the further 
remains, somebody else was kind enough to meddle with the transport of 
this valuable specimen. It was placed on the head of a Kaffir-boy who took 
it down hill and overturned the box into a wheelbarrow before it could be 
prevented. 
After the pieces had been fitted together as far as possible the two pubes 
appeared as figured on PI. XVI, figs. 4 and 5. The length of the most com- 
plete of the two, the left pubis, cannot be accurately given, for the distal end 
cannot be fitted on to the remainder. The length of the bone as preserved, 
without the distal end, is 34 cm. Then comes a gap, which may have a length 
of 5 mm. medially and of about 2-5 cm. laterally. The distal end has a medial 
length of 6-5 cm. and a lateral length of 8 cm. The total length of the bone 
may therefore have been 42 cm. It is very improbable that the length of the 
gap was greater, for I am under the impression that the two pieces of bone 
were separated medially by a crack 
filled up with matrix. Laterally of 
course a piece of bone has been 
lost. The distal ends of both pubes 
show their complete breadth. If 
they are placed alongside of each 
other the maximum breadth of the 
pubic plate of the combined bones Text-fig. 10. Dromicosaurus gracilis. Outline 
at the distal end would be 16-5 cm. of section through middle portion of left 
The breadth of the plate would publS seen the distal end. Nat. size, 
have been less in the middle, because the distal ends have lateral projections. 
The pubic plate is thickest near its lateral side. The lateral border is fairly 
sharp, but the bone thickens rapidly from this 
border inwards. It attains its maximum thickness 
before the middle of the bone is reached and it 
then thins out gradually towards the medial line, 
where the extremely thin bone was coalesced with 
its fellow (text-fig. 10). The maximum thickness 
of the left half of the pubic plate above its middle 
is 2-5 cm. Near its distal end the thickness is less 
than 2 cm. A piece of the present medial edge of 
the bone has a thickness of 3 mm. The distal end 
is very much thickened, that is to say, the hinder 
surface of the distal end bulges considerably back- 
wards. The anterior surface of this end is slightly 
concave, through a slight thickening of the distal border. The lateral side bends 
slightly outwards at the distal end. The distal surface is very broad, because of 
the thick end (text-figs. 11 and 12). The hinder surface is concave from above 
downwards immediately above the distal surface. The maximum thickness of 
the distal end which lies midway between the sides is 3-5 cm. The maximum 
breadth of the distal surface is nearly 5 cm. The distal surface is convex and 
its lateral -hinder-medial border is half a circle. The anterior border is straight. 
Text-fig. 11. Dromicosaurus 
gracilis. Outline of lon- 
gitudinal section through 
distal end of left pubis. 
The anterior border is 
below, x 
