X LIST OF ILLUSTEATIONS. 



Page. 

 105-lOG. Oxyurus tetraptera. 105. Anterior extremity showing cuticular en- 

 largements. 106. Posterior extremity of male. (a) dorso-lateral 



view; (b) dorsal view 88 



107. Oxyurus tetraptera. Anterior extremity and region of vulva in female 



es., Esophagus; es., bulb, esophageal bulb; int., intestine; ov., ovary; 



ut., uterus; v., vulva 89 



108. Oxyurus tetraptera. Posterior extremity of female 89 



109. Oxyurus triradiata. Head 91 



110. Oxyurus triradiata. Head viewed from the front diagonally 91 



111. Oxyurus triradiata. Esophageal bulb 92 



112. Oxyurus triradiata. Posterior extremity of male, ventral view 93 



113. Oxyurus triradiata. Posterior extremity of male, lateral view 93 



114. Oxyurus triradiata. Posterior extremity of female. ; an. , anus 94 



115. Oxyurus triradiata. Female in region of vulva, showing development of 



cuticle anterior and posterior of vulva 94 



116. Oxyurus ungula. Posterior extremity of male 95 



117. Oxyurus pallaryi. Anterior extremity of female 95 



118. Oxyurus pallaryi. Male 96 



119. Oxyurus pallaryi. Posterior extremity of male, ventral view 97 



120. Oxyurus pallayri. Gubernaculum 98 



121. Oxyurus polyoon. Posterior extremity of male 98 



122. Dermatoxys veligera. Posterior extremity of male, ventral view 100 



123. Dermatoxys veligera. Posterior extremity of male, ventral view 100 



124. Dermatoxys veligera. Spicule 101 



125. Dermatoxys veligera. Posterior extremity of female 101 



120. Dermatoxys veligera. Female genitalia 102 



127. Dermatoxys veligera. Egg 102 



128. Dermatoxys getula. Male 103 



129. Dermatoxys getula. Anterior extremity, dorsal view 103 



130. Dermatoxys getula. Row of crests on ventral surface of male 104 



131. Dermatoxys getula. Female body in region of vulva 104 



132. Dermatoxys getula. Posterior extremity of young male, ventral view 105 



133. Heterakis verrucosa. Eggs 105 



134. Trachy pharynx nigeriae. Anterior extremity 110 



135-137. Uncinaria muridis. 135. Anterior extremity. 130. Spicule. 137. 



Posterior extremity of female, ventral view 112 



138. Arheilostoma simpsoni. Anterior extremity 113 



139. Acheilostoma simpsoni. Base of buccal capsule 113 



140-141. Acheilostoma simpsoni. Dorsal view of bursa. 141. Acheilostoma 



simpsoni, lateral view of bursa 114 



142. Ransomus rodentorum. Buccal capsule 116 



143. Ransomus rodentorum. Male 117 



144. Ransomus rodentorum. Bursa, dorsal view, d, dorsal ray; e. d., externo- 



dorsal ray; I., postero-lateral and medio-latcral rays; I. v., latero-veutral 



ray; v. v., ventro-ventral ray 118 



145. Ransomus rodentorum. Bursa, lateral view, d, dorsal 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. . . 118 



146. Ransomus rodentorum. Portion of male body, showing spicules 119 



147. RansomiLS rodentorum. Distal extremity of spicule 119 



148. Ransomus rodentorum. Female 120 



149. Strongylus (Deletrocephalu^) hrachylaimus. Anterior extremity 121 



