EXPLANATION i)¥ PLATES. 



PLATE I. 

 Kteonk cinerka n. «p. 



Pig. 1. — AuUnior foot, X 1<>. 

 2.— Middle foot, X Hi. 

 3. — Posterior foot, X 16. 

 4. — Head aud buccal segment, X Ki. 

 5.— Seta, X 300. 



PODAKKK C.S:CA ». sp. 



Fig. 6. — Head and auteiior .segment.s, X 70. 

 7. — Eighth and ninth segment.s, X 70. 

 8.— Seta, X 450. 



Hesionk agili.s n. up. 



Fj,;. 9.— Head and anterior part of alimentary canal, X 45. 

 10. — Foot, from middle of body, X 45. 

 11. — Compound seta. X 400. 



PLATE II. 



Syllidks (;<)NVoluta n. sp. 



Fig. 1*2. — Head and anterior segments, X 85. 

 13. — Outline of middle segments, X 85. 

 14. — Compound seta, X 7.50. 

 15.— Simple seta (acicula). X 7,50. 

 16.— Foot, X 1.50. 



Stkepto.syllis ARENiE )i. g., n. sp. 



Fig. 17.— Head and tiist two segments, X 05. 



Ig. —Outline of undia- surface of head, X 85. 

 19. — Posterior segments, X 35. 

 20.— Foot with articulated jointed cirrus, X 85. 

 21. — Foot, to show ventral cirrus, X 85. 



PLATE III. 



Streptosyi.i.is ARENiE n. g., n. sp 



Fig. 22.— Compound seta, X 400. 

 23.— Simple seta, X 400. 

 [431 



741 



