﻿part 1] 



FROM THE BRITISH COAL MEASURES. 



51 



in the middle of its length, each twig forking again just before 

 reaching the margin. 



Seven anal veins are determinable, all simple and unbranched, 

 except the third, which forks twice. The anal veins are weak, 

 radiate fan-wise from the base of the wing, and, owing to the 

 great width of the latter, pass almost directly backwards. 



The intercalary venation consists of an open meshwork of 

 irregular polygonal cells, feebly defined towards the free margin 

 of the wing. Around the point of attachment of the wing 

 are a few intercalary veins, which run oblicmely inwards towards 

 the wing-base. 



Right wing. — The right wing, of which less than the proximal 

 half is shown, lies with its under side uppermost under the fragment 

 of the left. The portion exposed is too small to allow of a detailed 

 description of the full character of the veins, but sufficient is seen 

 of the wing to determine that the median vein differs from its 



Fig. 3. — Restoration of the right wing of Palaeomantis macroptera, 

 gen. et sp. nov. (Natural size.) 



fellow in "the left wing. But one twig comes off backwards from 

 the second branch, forking at the middle of its length. The outer 

 branch of the cubitus forks twice before reaching the wing-margin, 

 that of the left wing forking once. 



The greatest depth of the wing is along a line drawn from the 

 costal margin to the middle of the cubital area on the inner margin. 

 The diameter is here 40 mm. The absence of the wing-tip is 

 unfortunate, as it renders the complete outline of the wing a 

 matter of uncertainty. The shape of the ironstone nodule would 

 seem to indicate that very little of the wing is missing, for nodules 

 of this character are usually very uniform in size and outline. 



The missing portion can hardly have exceeded 20 to 25 mm. in 

 length. The indications of the terminal forking in the radius and 

 radial sector are usually in close agreement with those of the median, 

 and the latter indicate that only a small portion of the wing-tip 

 is missing. Bearing in mind the probable maximum length of 



