60 S. II. SCUDDER ON PALAEOZOIC COCKROACHES. 



blattiua; the area is also of unusual equality, occupying like the mediastinal about one-third 

 the breadth of the wing ; the main vein emits four or five branches, which may be simple 

 or forked, but all have a nearly similar oblique direction. The anal furrow is, apparently, 

 not especially distinct nor marked as an arcuate vein, but is nearly straight, terminating at 

 the middle of the inner margin, and, like the other anal veins, following the direction of 

 the internomedian veins ; as no mention is made of the innermost region of the wing by 

 Dr. Goldenberg, perhaps his illustration is faulty at this point, as indeed it would be rather 

 anomalous ; more probably the species would not be found to differ greatly in this respect 

 from the preceding. 



This species has a brownish colour, and a delicate reticulation, formed on the same gen- 

 eral plan as that of the preceding species. It is of comparatively small size, being 20 mm. 

 long and 9 mm. broad, or the breadth to the length as 1 : 2.2. 



It was at first considered a variety of Etobl. anaglyptica by Goldenberg, but afterwards 

 separated by him. He noticed at the outset the smaller size and broader shape, but it also 

 differs decidedly in general shape, in the far smaller extent of both the scapular and inter- 

 nomedian areas, the length of the mediastinal area, and the widely different distribution of 

 the veins in the internomedian area. The breadth of the wing separates the species at 

 once from all the other species of Etoblattina excepting the preceding, and it is also pecu- 

 liar, as remarked, for the great length of the mediastinal and internomedian areas, although 

 in the last point other species of Etoblattina equal it. It differs from the preceding species 

 by its much smaller size, its broader tip, and the small extent of the scapular area. 



Several specimens have been found in the coal shales of the Labach coal seam near Saar- 

 louis, Germany. Upper carboniferous. 



Etoblattina euglyptica. PI. 2, fig. 16 ; pi. 4, fig. 7. 



Blattlna euglyptica Germ., Verst. Steink. Wettin, vii, 80-87, tab. 31, figs. 7 a , 7 b , 8 ; — 

 Gieb., Ins. Vorw., 315 ; — Heer, Viertelj. naturf. Gesellsch. Zurich, ix, 287; — Gold., 

 Fauna saraep. foss., ii, 19. 



Compare also the synonomy of Etobl. Djhrn'u, Gerabl. producta, and G. weissiana. 



The front wing is long and slender, having a very regular and rather strongly arcuate 

 costal margin and a straight inner margin ; the tip in the specimens known is broken, but 

 there is no reason to suppose it to have been other than regularly rounded. The veins 

 originate in the middle of the base, but immediately curve upward, so that the mediastinal 

 area is narrow and equal, occupying about one quarter of the width of the basal half of 

 the narrow wing, the main vein reaching somewhat beyond the middle of the wing, and 

 emitting about nine oblique, simple branches. The scapular vein, curving somewhat 

 strongly near the base, is beyond it nearly straight, rather distant from the mediastinal, 

 and terminates at some distance short of the tip, commencing to divide at some distance 

 before the middle of the wing, and emitting three or four long branches, which fork midway 

 in their course, and are somewhat more longitudinal than the mediastinal branches. The 

 externomedian vein is very similar to the preceding, and approximates it rather than the 

 internomedian vein, while its course assumes the curve of the latter ; it begins to divide at 

 the middle of the wing, and emits three or four strongly divergent but nearly longitudinal 

 branches, which fork again and occupy with these forks the entire apex of the wing, en- 



