NAT. ACAD. SCIENCES, VOL. 9. 



FIRST MEMOIR, PLATE ;«XXVI 





.f^* M 





F;g. 1. 



Fig. 4. 



A. HORN * CO.. LITH.. BAI.TIMORK. 



Head (denuded); tibial epiphysi.s. etc. of Spbiugicanipiiiae, etc. 



