118 J. H. ORTON. 
APPENDIX TO TABLES. 
7 This sign in all cases indicates that no lateral processes are present in the 
vertebra immediately preceding the Ist vertebra with complete hemal arch 
or the most anterior incomplete arch denoted in the records. The processes 
in these cases have been cleaned away. 
* This sign on the measurements (Column: | to 9) indicates that the charac- 
ter is shghtly abnormal in some way or that the part measured is slightly 
damaged. In columns 17 and 18 the asterisks refer to the following :— 
Sample ITT, 
Fish No. 
3 * 12th vertebra with complete hemal arch has two pu.irs of hzemal arches, 
but only one extra neural process on the right, which is attached to 
the 11th neural arch. The vertebra itself is slightly longer than 
adjacent ones, but has been counted as and appears to be only one. 
The left heemal process of the 15th vertebra with complete hzemal 
arch is attached to the 14th hemal arch and its fellow is free. The 
heemal processes of the next vertebra, the 16th, are also free. 
9* Right portion of 11 and 12 hzmal arches fused with left division of 11th 
heemal spine. 12th, left portion of hzemal arch free. 
34 * 19th vertebra is very long and carries two pairs of neural and hemal 
arches, the extra arches arising from the middle. It is recorded as 
one, but is apparently made up of two fused. 
98 * 9th and 10th vertebree (with complete hzemal arch) have each two pairs 
of neural spines, the 10th has also two pairs of hemal spines, the 
abnormal pair having one limb (the left) arising from the middle of 
the centrum, but the other arising near the origin of the right member 
of the 11th hemal arch. These vertebre are each recorded as one; 
they are of normal size, and neither appears to be composed 
of two vertebre fused, as is undoubtedly the case in other 
skeletons. 
125 * 2nd vertebra with well-developed ventrolateral processes (paired). 
139 * 6th hemal arch with extra spine arising from junction of processes. 
157 * Processes missing almost entirely one side and entirely on other side. 
161 * Anterior group of vertebree lost. 
241 * Ist heemal arch has a supernumerary heemal process in the middle of 
the vertebra on the left side. 
243 * Ist heemal arch broken, but still attached to vertebra. 
267 * Incomplete arch, although nearly complete. The vertebra preceding 
had a complete hzemal arch as noted in the record. 
270 * Transverse bars nearly joined. The right-hand figure of Fig. 3 is 
drawn from this vertebra. 
277 * 10th and 11th hemal arches are joined by a bony cross-piece. 
