274 Messrs. Hancock & Atthey on Reptile- and Fish-Remains 
The measurements of the larger vertebrae are as follows :— 
inch. 
Height of the body of the vertebra ...... 1:9 
Transverse diameter .........200e0 0008 1:8 
DOR OGR Sy 65 cies os 5,4 ah Ee ee 0:8 
Height of neural arch; . .:.)s. <6 weil. speach 0-4 
Height of spinous process ............6% 1-7 
ESTED OL GEC onsen wig tcpivin:ens © sere era ee Ls, 
EGRTIPRS OF CIELO. 372% 2. «dine al >A ieee ee 0-2 
Width of transverse process ..........+. 0-7 
THiGRIVOMN OF MILO 2s kn so cas dee tee Ree 0-3 
Several other well-ossified vertebral centra have occurred 
at Newsham; they have all, however, lost the neural arch 
and most of the processes. Some, having a minute noto- 
chord, probably belong to Pteroplax; and two in parti- 
cular, one of which is an inch and a half high, and about the 
same wide, agree perfectly well in form with the two above 
described. ‘These have on the upper surface two peculiar, 
wide, arched, transverse, sessile processes or lobes, with the 
anterior faces a little hollowed. There can be no doubt that 
these belong to this Labyrinthodont, and are probably caudal 
vertebree. 
There are three or four other. vertebrae, quite as large as 
the above, with a notochord nearly half an inch wide, and the 
remains of lateral processes. ‘These may probably belong to 
fishes ; but we know of no fish in our coal-shales to which they 
can be assigned. 
The four or five ribs that have turned up at Newsham are 
not well preserved: two are lying in contact with one of the 
cranial shields, one above, the other below it; but in both in- 
stances the extremities are either lost or much injured. The 
largest is five and a half inches from end to end, and four- 
eighths of an inch broad; it is well and regularly arched, and 
appears to be a little flattened; a wide groove extends along 
the surface; and one of the extremities, which is crushed flat, 
exhibits distinct traces of a tuberculum and capitulum, the 
latter projecting quite four-eighths of an inch beyond the 
former, and continues the concavity of the inner margin of the 
rib. The tuberculum is reflected a little, so as to interrupt the 
convexity of the opposite margin. In short, this rib, as far as 
can be determined, agrees very closely with that of Anthraco- 
saurus as figured and described by Prof. Huxley (loc. cit. p.63). 
In another specimen the proximal extremity is better preserved ; 
and in it the head and tubercle are quite in accordance with 
the above description. 
Another rib, which probably belongs to this or to some other 
