Pal.£ONtograph l Soc. 



SUB -ORDER XIPHOSURA. 



PI XXXIII. 



A 



A i 



^ 1. Griestaclv 



LARVAL STAGES OF LIMULUS POLYPHEMUS, LATR. 

 (after Dohrrv &. PcuJccwd' ) 



Mintern Bros imp 



