PARASITES OF FISHES OF BEAUFORT, NORTH CAROLINA. 419 



EXPLANATION OF PLATES. 



PLATE I. 

 Echinorhynchus sagittifer Linton. Adult. From cobia (Sachycentron canadus). 



Figs. 1-4. — Male, mounted in balsam. Actual length M4 mm.; s h, proboscis sheath; eg, cement 



glands; e d, ejaculatory duct; b, bursa. 

 Fig. 5. — Portion of one of the transverse groups of spines with which the anterior part of the body is 



armed; X 210. 



PLATE II. 



Echinorhynchus sagittifer Linton. Adult. From cobia (Rachycentron canadus). 



Fig. ii. — Anterior end of female with proboscis, neck, and anterior end of body everted. Sketched 



from life; X 20. 

 Fig. 7. — Proboscis of same. X SO. 



Echiimrhynchns jirislh Rudolphi. From spot (Leiosttnnvs vanthurus). 



Fig. s. — Anterior end of male. Sketched from life; X 50. Letters same as in Figs. 1 to 4. 

 Fig. 9. — Posterior end of same. Life; X 50. Letters as before. 

 Fig. 10.— View of proboscis at about middle of its length. X 315. 

 Fig. 11. — Hooks from circle near base of proboscis. X 315. 



PLATE III. 



Echinorhynchus pristis Rudolphi. From spot (Leiostomus xanthurus) . 



Fro. 12. — Hooks near base of proboscis. X 315. 



Fig. 13. — Spines from anterior end of body, a little posterior to those figured next, x 315. 



Fie ;. 14. — Spines from anterior end of body just hack of neck. X 315. 



Echinorhynchus sp. From gray trout (Cynoscion regedys). 



Fig. 15. — Fragment of female, posterior end, lateral view. Life; X 50. 

 Fig. 16. — Dorsal view of same. Life; X 50. 



Filaria galeata, sp. now From bonnet-head shark (Sphyrna tiburo). 



Fig. 17. — Posterior end of male, lateral view; sp, spicule. Life; X 315. 



PLATE IV. 



Filaria galeata, sp. nov. From bonnet-head shark (Sphyrna tiburo). 



Fig. 18. — Anterior end; n r, nerve ring. X 315. 

 Fig. 19. — Same, opposite side. ■ 315. 



Fig. 20. — Posterior end of male from stomach of small dolphin (Coryphsena equwetis), evidently 

 introduced with food. X 170. 



Ichlhyonema globiceps Rudolphi. From lip of flounder (Paralichthys albiguUus). 



Fig. 21. — Anterior end. Actual diameter of head, 0.1 mm. », Uterus with young. 



Ascaris breincapitata Linton, immature. From stomach of dusky shark ( Carcharhinus obscurus). 



Fig. 22. — Anterior end. Actual diameter of jaws, 0.15 mm. 



Fig. 23. — Posterior end of same. Actual distance from anal aperture to tip, 0.37 mm. 



Heterakis sp. From drum (Scisenops oceUatus). 



Fig. 24. — Posterior end, ventral view. Life; X 210. 



