Bull. U. S. F. C. 1899. iTo face page 492 ) 



Plate XIV. 



168. vlscam sp. from }fr»ticirrnH saxatifta. Head. • 170. 

 I(»9. Posterior end. -170. 



170. Head of speoimen from another lot. • 170. 



171. Posterior end of sanie: x 170. 



17'_*. Asriirfss\}. from Sroiuhn'tmiorn^t mtu'iifafus. Posterior end. x 24. 

 17:i. Asniif s\i. iram Mdfioiinishiiiitfii. Head, x 2'^5. 



174. opposite side of head of .same specinitMi. x 'i'Jo. 



175. Head of older specimen from another lot. X 170. 

 17ti. rpper lip of same, somewhat foreshortened, x 185. 



177. Head of another specimen froDi same lot. x 210. 



17H. Tip of posterior end of same, x 37.5. 



179. Asrfiri.< s]i, from Lophtus pi.-iC(ifon'ii.^. Head, x 2'.i-">. 



I,s0. Posterior end. < 'i-Jn. 



LSI. .4xf'ar(V sp. from Stvnnbrr sromhrns. Head. < ISO. 



18'J. Posterior end. x ISO. 



18S. Aftain's s\i. from S/ilii/i'i'i zm/irnn. i*ortion of body. 



184. Posterior end. x ;JG. 



