DISTRIB1 riON 



343 



Ijlhonuinth I 1%. .-105), a rrmarkaMr fonn from Scothnid, possessed 

 in addition to its four lar^c nciiroptcroid wings, a pair of proth' 



FIG. 304. Etoblattina ma- FIG. 305. Lithomantis carbonarius, showing protho- 



zona, a Carboniferous cock- racic appendages. Two thirds natural size. AfterWooD- 

 roach from Illinois. Twice WARD. 

 natural size. After SCUDDER 

 in Miall and Denny. 



FIG. 306. Slenodictya lobata, showing wing-like appendages of prothorax and abdomen. 

 Natural size. After HANDLIRSCH. 



wing-like appendages which, provided they may be regarded as homolo- 

 gous with wings, represent a third pair, either atrophied or undeveloped 



