Bull. U. S. F. C. 1 899. (To face page 492.) 
Plate XI. 
117. Immature nematodes ( Ascctris ) from Stenotomus ehrysnps, con- 
tinued. Head of specimen from Charleston, S. C. x 170. 
118. Posterior end. x 170. 
119. Anterior end of specimen from another lot. < 225. 
120. Posterior end of same, x 225. 
121. /lsea/7.'osp., immature, from Lapooephalux brvifiatux. Head, x 225. 
122. Posterior end. X 225. 
123. Asearis sp., immature, from I.npholatilux chamutraittieepx. Head. 
• x 150. 
124. Posterior end. x 150. 
125. Asearis sp. from Anguilla ehrysypa. Head, x 225. 
126. Posterior end. x 150. 
127. Asearis sp., immature, from Carchariax littoraiis. Head, x 225. 
128. Posterior end, lateral view, x 225. 
129. Head of specimen from another lot. ■ 30. 
130. Posterior end. x 30. 
131. Asearis sp. from Salmo solar. Head, x 150. 
