258 PROCEEDINGS OF THE ACADEMY OF [Vol. LXXV 



Fig. 7.— Simple seta from L. ( X 250) 



Fig. 8. — Leoena gracilis — Uncinus from X. (X 600) 



Fig. 9. — Pisia disjunda — Uncinus from V. (X 440) 



Fig. 10. — Tercbellides ehlersi Mcintosh — Outline of spine on VIII of speci- 

 men from station 4382. magnified 



Figs. 11-13. — Lysippe annedens. 



Figs. 11, 12. — Lateral and face views of uncinus from X of cotype (sta. 

 4436). (X 600) 



Fig. 13. — Unciniis from XXV, somewhat crushed. (X 600) 



Figs. 14-18. — Amage arieticornuta, cotype (sta. 4436). 



Fig. 14.— Outline of parapodium IV. (X 56) 



Fig. 15.— Same of VI. (X 40) 



Fig. 16.— Same of XXV. (X 12) 



Figs. 17, 18.— Uncini from X and XXV. (X 400) 



Figs. 19-24. — Amage scutala. 



Fig. 19. — Outline of parapodium IV. (X 56) 



Figs. 20, 21.— Same of V and VI respectively. ( X 24) 



Fig. 22.— Same of XXV, (X 12); a caudal face of notocirrus. (X 12) 



Fig. 23.— Uncinus of X. (X 400) 



Fig. 24.— Two (one partly turned) uncini of XXV. (X 400) 



Fig. 25. — Melinna crislata heierodonta cotype (sta. 4546) — Two abdominal 

 uncini, one nearly face. (X 400) 



Plate XVIII. 



Figs. 26-29. — Sosanopsis armipotens. 



Figs. 26, 27. — Dorsal and lateral aspects of head end of type. (X 8) 



Fig. 28. — Face and lateral views of uncinus from X. (X 400) 



Fig. 29. — Lateral and face views of abdominal uncinus. (X 400) 



Fig. 30. — Rhodine bitorquaia (sta. 4524) — uncinus of double series. (X 440) 



Figs. 31, 32. — Praxillura maculala. 



Fig. 31.— Tip of spine from II. (X 83) 



Fig. 32.— Crochet from X. (X 360) 



Figs. 33, 34. — Pseudodymene longiceps. 



Fig. 33.— Tip of spine from III. (X 83) 



Fig. 34.— Crochet from V. (X 360) 



Figs. 35, 36. — Hderodymene glabra. 



Fig. 35.— Spine from II. (X 250) 



Fig. 36.— Crochet from V. (X 360) 



Figs. 37, 38. — Eudymene reticulata (sta. 4337). 



Fig. 37.— Tip of spine from II. (X 126) 



Fig. 38.— Crochet from X. (X 360) 



Figs. 39, 40. — Eudymene delineata (sta. 4433). 



Fig. 39.— Spine from II. X 126) 



Fig. 40.— Crochet from V. (X 440) 



Figs. 41, 42. — Branchiomma circumspediim (sta. 4431). 



Fig. 41.— Spatulate seta from III. (X 360) 



Fig. 42.— Uncinus from V. (X 360). 



Figs. 43, 44. — Notaulex viucronata (sta. 4397). 



