EXPLANATION OF PLATE XIJ. 



Figs, i^ la, ib, ic, id. — Plectopylis {Endoihyra) oakesi, sp. n. 

 ,, 2i 2a, 2h, 2c, 2d. — ,, ,, gregorsoni^s^.n. 



,, 3. 3«, 3^, 3c, 3^-— ,, », miriensis, sp.n. 



