1960] 
Carpenter — Protodonata 
103 
believe that the specimen of aeschnoides is a fore wing. At any rate, 
the distance between the posterior margin of the wing and the first 
anal is like that of other protodonate fore wings, not hind wings. 
As can be seen from Scudder’s illustration, the wing was subjected 
to some distortion in the process of preservation; it rests on a very 
uneven surface of the rock, so that the contour of the anterior margin 
of the wing is difficult to follow exactly. This is made worse by the 
presence of a slight “fault” extending obliquely across the wing, so 
that the veins in the anterior part of the wing are not quite aligned 
on the two sides of the fault. The result of the faulting and of the 
irregularity of the surface of the rock is to cause a more pronounced 
curvature of the anterior margin of the wing than would presumably 
otherwise have been present. The drawing in text figure 2 has been 
made without any attempt to restore the presumed original shape of 
the wing, apart from aligning the veins across the fault. 
Scudder’s representation of the shape of the wing is correct, the pro- 
portions of his drawing being approximately the same as those in the 
fossil. On the other hand, Fraser’s drawing (1957, figure 11), show- 
ing a markedly broad wing and strongly curved posterior margin, is 
apparently incorrect. At any rate, I do not know of any evidence 
which supports this conception of the wing. Two other, more minor, 
corrections in Fraser’s figure should be noted. The vein which he has 
labelled R3 is a convex intercalary vein ; R2 and R3 presumably sep- 
arate much further along the wing. Also, the subcosta terminates 
gradually somewhat beyond the level of the separation of R2 + 3 and 
R4 + 5, not abruptly before this level as shown in Fraser’s drawing. 
The short basal vein, termed CuA, which is consistently present in 
the meganeurids, is not discernible in the specimen of aeschnoides 
although Dr. Fraser has shown it in his drawing. "The absence of 
this vein appears to be another characteristic shared by Paralogus and 
Oligotypus. 
The deposit in which the specimen of aeschnoides was found is 
usually referred to the Allegheny or Conemaugh Series, about equiva- 
lent to the Upper Westphalian of Europe. 
Family: Incertae Sedis 
Paralogopsis longipes Handl. 
Text figure 3. 
Paralogopsis longipes Handl., 1911, Amer. Journ. Sci., (4) 31: 374, fig. 58. 
The specimen on which this species was based is contained in an 
ironstone nodule from the vicinity of Mazon Creek, Illinois; the type 
