These holes were 87 mils apart (inside edges) on the portion used for the articulation of the 1st chevron. These holes (see plate) were 20 far apart that the intermedian carine must have been divided out its next to the last lumbar. Measurements of 1st Caudal (cleaned) Dyst spine to lower edge centrum 9.50 mil (posterior) Greatest breadth (bet. trans. pore) 9/10 " " Definite centra Breadth " Height Spine 350 " " 390 " (anterior) 470 " (anterior) Chevrons There are 16 chevrons present between the 17 and 18th caudal, on the left side one half of another small chevron - so that 17 might be counted. This brief chevron was 6 mil long x 5 mil wide, coursey extremely curvede entirely, it had the regular shape & form of a chevron, it was imbedded in its ligament & at first one would have said there was nothing there, but I cut it out very carefully so that I could not possibly have missed the other had it been present - The 16th chevron (the last complete one) is composed of two laminated irregular circular in shape, which are not joined distally ex. by cartilage. The right one is 708 mil. Its greatest length & 95 mil greatest breadth. This chevron is directly between