POLYCH^TA— BENHAM. 119 



Harmothoe abi/ssomm (figs. 30-35). 



Fig. 30. View of the head (X 10). 



31. Front view of the prostomium, showing the tips of the " peaks " and the 

 relative position of insertion of the median and lateral tentacles. 



32. A cirriferous parapod (camera, x 10). 



33. A tubercle of an elytron, side and top views (enlarged). 



34. A dorsal chseta ( x 90). 



35. A ventral chfeta ( X 90). 



Eulagisca corrientis (figs. 36-38). 

 Fig. 36. The head dorsal view (X 5). The tentacles are broken off, the palps are 

 represented as having l)een cnt away to a greater or less amount, and the sub- 

 tentacular frontal cone (/.c.) is seen below and projecting beyond the tenta- 

 culophore. The peristomial parapod is produced hitoa fine point (l) between 

 the dorsal and ventral cirri. 



37. View of the head from in front ( x 5), showing the position of the frontal cone. 

 The three tentacles are seen to lie in the same plane. The peristomium is 

 foreshortened, and only the apex of the lobe (J) and insertion of the two cirri 

 are indicated; {1} elytrophore of second segment. 



38. The second elytron ( x 10). 



Plate 7. 

 Eulaijisca corrientis (figs. 39-42). 

 Fig. 39. The eleventh parapod, anterior face (x 2h). 



40. One of the upper dorsal chaetse ( X 45). 



41. A ventral cha^ta from the middle of the bundle ( x 45). 



42. A ventral chaeta from the lower part of the bundle (X 45). 



Hermaaion roucJd (figs. 43-47.) 

 Fig. 43. One of the most dorsal cheetse from a large individual ( x 45). 



44. The apex of one of the smaller dorsal ehaetae from the upper part of a bundle, 

 from one of the smaller individuals ( X 250). 



45. The apex of one of the largest dorsal chsetae, much worn ( X 250). 



46. One of the uppermost chsetae of a ventral bundle of a large individual ( x 45). 



47. One of the low^ermost ventral cha?ta^ of a large individual ( x 45). 



Eulalia Imnteri (figs. 48-52). 

 Fig. 48. Anterior end of the worm ( X 9). 



49. The head (x 27). Only the appendages of the right side are completed. 



50. A parapod, anterior face (camera, x 20). 



51. A clia'ta ( X 250) : the appendix is not necessarily curved. The outline is too 

 heavily drawor ; it is in the object extremely fine. Note the peculiar articulation. 



.32. A gioup of pLaiyiigtal papilla? (X 3,3) : tlu'ce are shown from above. 



