588 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



RuDOLPHi, Carl Asmund. 



18U2a. — Fortsetzung der Beobaehtuugen uber die Eingeweidewiirmer. 

 Arch. f. Zool. u. Zoot., Braunschweig, vol. 2 (2), pp. 1-67, pi. 1. 

 1S03«. — Neue Beobaehtuugen iiber die Eiugeweideewiirmer. Arch. f. Zool. u. 

 Zoot., Braunschweig, vol. 3 (2), pp. 1-32. 

 Seukat, L. G. 



1913. — Le guudi, nouvel bote du Ncmatodirus filicollis (Rud.). Conipt. 



rend. Soc. de biol., Paris, vol. 74 (16), 9 mai, pp. 954-956, 1 fig. 

 1918. — Sur la morphologie de I'appareil ggnital femelle des nematodes. 

 Conipt. rend. Soc. de biol., Paris, vol. 81 (11), 8 juin, pp. 577-581. 

 Zeder, Johann Georg Heinrich. 



1803«. — Anleitung zur Naturgeschichte der Eingeweidewiirmer. xvi+432 

 pp., 4 pis. Octavo. Bamberg. 



EXPLANATION OF PLATES. 



Plate 29. 



Figs. 1-14. 1. Nematodikus furcatus. Anteriok end showing inflated cuticdla, 



DORSAL tooth AND SOME CIRCU MORAL PAPILLAE. 2. N. SPATHIGBR. ANTERIOU END 

 SHOWING INFLATED CUTICULA AND EVERTED ESOPHAGUS WITH DORSAL TOOTH. 3. N. 



SPATHIGER. Ventral view of anterior end with esophagus partly everted, show- 

 ing DORSAL and LATERO-VENTRAL TEETH. 4. SAME AS FIG. 3, LATERAL VIEW. 5. LATERAL 

 VIEW OF ANTERIOR END WITH ESOPHAGUS NOT EVERTED. SPECIMEN PARTLY CRUSHED. 



6. N. SPATHIGER. Junction of esophagus and intestine and opening of excretory 



POKE, side view. 7. N. SPATHIGER. P'IRST SECTION FROM ANTERIOR END, SHOWING THE 

 ORAL OPENING, TRIRADIATB H:M1:X OF ESOPHAGI'S, AND CIRCUMORAL PAPILLAE. 8. SEC- 

 tion a little farther back, showing dorsal tooth with large nucleus at base. 

 9. Section through nekve ring. 10. Section through excretory pore. 11. Section 



THROUGH excretory BRIDGE. 12. SECTION A SHORT DISTANCE BEHIND EXCRETORY BRIDGE. 



13. Section through nucleus of one of renette cells. 14. Section showing dis- 

 appearance OF RENETTE CELLS. IjETTEUING : C. r., CUTICULAR RIDGES ; d. f., DORSAL 



field; e., esophagus; e. c, excretory canal; e. p., excretory pore; i., intestine; 



I. f., LATERAL FIELD; m. C, MUSCLE CELLS; M. r., NERVE RING; r. C, RBNETTE CELLS; 

 t., TESTIS ; V. f., VENTRAL FIELD. 



Plate 30. 

 Figs. 15-17. 15. Nematodirus spathiger. Section through body of female, about 



ONE-THIRD OF THE WAY BACK. 16. POSTERIOR END OF FEMALE, VENTRAL VIEW. DrAWN 

 AS TRANSPARENT OBJECT. 17. LATERAL VIEW OF SAME. LETTERING SAME AS UNDER 



previous figures, AND a., anus; c. 0; CAUDAL gland; c. p., caudal process; d. g., 

 dorsal gland ; i. q., latero-ventral gland ; 0., ovary ; t. wl., transverse muscles. 



Plate 31. 

 Figs. 18-20. 18. Nematodirus filicollis. Side view of bursa, spread out. 19. N. 

 FURCATUS. Side view of bursa, spread out. 20. N. helvetianus. Side view of 



BURSA, spread OUT. LETTERING SAME AS UNDER PREVIOUS FIGURES, AND 6., BOSSES ; d., 

 DORSAL RAY ; 6. d., EXTERNO-DORSAL RAY ; C. I., EXTERNO-LATERAL BAY ; I. V., LATERO- 

 VENTRAL RAY ; TO. {., MEDIO-LATERAL RAY ; p. I., POSTEROLATERAL RAY ; V. V., VBNTRO- 



ventral ray. 



Plate 32. 

 FiGS. 21-23. 21. Nematodirus spathiger. Side view of bursa, spread out. 22. N. 

 dromedarii. side view of bursa, spread out. 23. n. abnormalis. side view of 

 bursa, spread out. lettering same as under previous figures. 



Plate 33. 

 Figs. 24-25. 24. Nematodirus filicollis. Spicule point, lateral and dorsal views. 

 25. N. SPATHIGER. Spicule points, lateral and dorsal views. Dorsal views show 

 some variations. 



Plate 34. 



Figs. 26-29. 26. Nematodirus spathiger. Spicules, entire dorsal view. 27. N. fur- 

 catus. Spicules, entire ventral view. 28. N. furcatus. Spicule points, lati:ral 

 and ventral views. 29. N. abnormalis. Spicule points, lateral and dorsal views 



Plate 35. 

 Figs. 30-31. 30. Nematodirus helvetianus. Spicule points, lateral and dorsal 



views. 31. N. DROMEDARII. SPICULE POINT, DORSAL VIEW. 



