Xn LIST OF ILLUSTRATIONS. 



Facing 

 page. 



181. Graphidium strigosum. Bursa, dorsal view, d., dorsal ray; c. d., externo- 



dorsal ray; e. I., externo-lateral ray; I. v., latero-vcutral ray; m. I., 

 medio-lateral ray; p. I. , postero-lateral ray 139 



182. Graphidium strigosum. Bursa, ventral view e. d., externo-dorsal ray; 



e. I., externo-lateral rays; I. v., latero-ventral rays; m. I., medio-lateral 

 rays; p. I., postero-lateral ray; v. v., ventro-ventral rays 140 



183. Graphidium strigosum. Posterior extremity of female, oiy., ovijector... 140 



184. Citellincvia bifurcatum. Anterior extremity of male 141 



185. Cetillinema bifurcatum. Posterior extremity of male, latero-ventral view. 



d. I., postero-lateral (dorso-lateral), ray; e. I., externo-lateral ray; I. v., 

 latero-ventral ray; m. I., medio-lateral ray; v. v., ventro-ventral ray 141 



186. Citellinema bifurcatum. Spicules 142 



187. Warrenius quadrivittati. Anterior extremity 142 



188. Warreniixs quadrivittati. Bursa, dorsal view; d., dorsal ray; e. d., externo- 



dorsal ray; c. I., externo-lateral ray; I. v., latero-ventral ray; m. I., 

 medio-lateral ray; p. I., postero-lateral ray; v. lobe, ventral lobe of bursa; 

 V. v., ventro-ventral ray 143 



189. Warrenius quadrivittati. Bursa, lateral view. e. I., externo-lateral ray; 



I. v., latero-ventral ray; m. I., medio-lateral ray; p. I., postero-lateral 



ray; v. v., ventro-ventral ray 143 



190. Warrenius quadrivittati. Bursa, ventral view; d. lobe, dorsal lobe of 



bursa; e. d., externo-dorsal ray; e. I., externo-lateral ray; I. v., latero- 

 ventral ray; m. I., medio-lateral ray; p. I., postero-lateral ray; v. lobe, 

 ventral lobe of bursa; v. v., ventro-ventral ray 144 



191. Warrenius quadrivittati. Posterior extremity of male, dorsal vciw 144 



192. Strongylus scdccirnradiatus . Bursa, dorsal view 146 



193-195. Strongylus cavalli. 193. Anterior extremity. 194. Spicules. 195. 



Posterior extremity of female 146 



196. Strongylus minutoides. Anterior extremity 147 



197. Strongylus minutoides. Spicules 147 



198. Strongylus minutoides. Posterior extremity of female, lateral view 147 



199. Ileligmosomum minutum. Posterior extremity of male 152 



200. Ileligmosomum vexillatum. Anterior extremity of female 155 



201. Ileligmosomum vexillatum. Male 156 



202. Ileligmosomum vexillatuvi. Bursa, dorsal view 156 



203. Ileligmosomum vexillatum. Posterior extremity of male, ventral view. 



d., dorsal lobe and ray; e. d., externo-dorsal ray; e. I., externo-lateral 

 ray; I. v., latero-ventral ray; m. I., medio-lateral ray; p. I., postero- 

 lateral ray; v. v., ventro-ventral ray 156 



204. Ileligmosomum vexillatum. Female 157 



205. Ileligmosomoides linstowi. Bursa 160 



206. Ileligmosomoides linstowi. Bursa 160 



207. Ileligmosomoides linstowi. Vagina and ovijector 1 61 



208. Ileligmosomoides linstowi. Embryo 161 



209. Synthetocaulus pulmonalis. Anterior extremity 164 



210. Synthetocaulus pulmonalis. Posterior extremity of male 164 



211. Synthetocaulus pulmonalis. Part of spicule 165 



212. Synthetocaulus pulmonalis. Posterior extremity of female 165 



213. Synthetocaulus rufescens. Posterior extremity of male 167 



214. Synthetocaulus rufescens. Spicules 167 



215. Synthetocaulus rufescens. Posterior extremity of female 167 



216. Rictularia cristata. Anterior extremity of female 169 



