516 University Geological Survey of Kansas. 
pearance this species presents not a little resemblance to some 
species of Spiloblattina. In the arched form of the wing and 
the long subcosta it presents, on the other hand, the essential 
characters on which the genus Gerablattina was established. 
Length of tegmina, 24 mm.; breadth, 9 mm. 
Formation and locality: Le Roy shales, Upper Coal Meas- 
ures, Lawrence, Kan. Types, Nos. 22 and 170, University of 
Kansas collection. 
Schizoblattina. 
Sellards, Amer. Jour. Sci., vol. 18, p. 217, 1904. 
Small cockroaches; veins of the tegmina numerous, much 
branched and united in all parts of the wing by frequent, com- 
paratively strong, cross-veins. The main veins are tree to the 
base. Subcostal area broad at the base. Some of the anal 
veins end on the anal furrow. 
Three species of the genus have now been recognized in the 
Kansas Coal Measures. All of these are of comparatively 
small size. The genus is clearly separated from any other of 
the Coal Measures genera by the numerous veins of the wing, 
by the cross-veins, and by the tendency of the radius, media 
and cubitus to divide into approximately equal parts, as well 
as by the presence of the several veins from the first anal 
running to and ending on the anal furrow. The insect de- 
seribed by Scudder from Fairplay, Colo., as Neorthoblattina 
albolineata is provisionally referred to this genus, since it has 
a similar disposition of the veins of the tegmina, including 
those of the anal area, and is in these characters unlike the 
other species of the genus to which it was originally referred. 
Schizoblattina has not been recognized in the Permian, but if 
the Fairplay specimen is correctly referred to this genus it is 
to be expected also in the Kansas Permian. The geological 
age of the Fairplay beds is unsettled, as they have been re- 
ferred by Scudder to the Triassic and by Lesquereux to the 
Permian. 
Schizoblattina multinervia. Pl. LXXVI, fig. 28; pl. LXXVII, fig. 4. 
Sellards, Amer. Jour. Sci., vol. 18, p. 217, 1904, text fig. 28; zbid., 
vol. 15, pl. 7, fig. 6, 1908. 
Tegmina small, a little more than half as long as broad, and 
supported by numerous close branches with frequent, compara- 
tively strong cross-veins in all parts of the wing. Costal and 
inner borders both arched, sloping gradually and equally to 
the apex, which is placed about the middle line of the wing. 
