46 ROY L. MOODIE 
Of the pelvis there is but a single element present. This is a 
slender elongate rod and it is undoubtedly the ilium since it has the 
usual position for that element and is much too large for a sacral rib. 
It has much the same shape as in the modern Salamandra. It is not 
expanded as in the ilium 
of Branchiosaurus. ‘This 
element, like the humerus, 
seems to have been but a 
hollow cylinder of bone and 
undoubtedly had cartila- 
ginous ends as in the ilium 
of the recent Salamandra. 
The two femora are s 
preserved nearly entire. 
The right one lies upon and 
partly obscures the sacral 
vertebra. ihe) femur is 
much more slender than is 
the *humerus> sltris abut 
slightly expanded at the 
ends and like the humerus 
shows the concavities at the 
Fic. 3.—Ventral scutellation of Micrer peton 
caudatum. F=femur; H=humerus; I =ilium; 
S =the lines of scutes; V =the vertebral , 
column. Xs. - chondral character of the 
ends indicative of the peri- 
tissue composing it. The 
endochondral tissue is a later development and finds its first expres- 
sion late in the embryonic and phylogenetic development of the verte- 
brates. Of the leg there are two elements preserved more or less 
entire (Fig. 5). These are the tibia and the fibula. The larger one 
may represent the tibia and the smaller one the fibula. They both 
present characters similar to those of the femur and the humerus. 
They are both rods of bone tapering at the distal end. The feet have 
been lost, though doubtless at one time present. 
The ventral surface of the body, as in other members of the 
Branchiosauria, was covered and protected by a series of small 
scutes arranged in the regular chevron pattern (Figs. 2, 3). The 
form of the scutes and their number cannot be determined. ‘The 
