Johnson. — Polychaeta 
PLATE 15. 
Figs. 151-156. Pectinaria brevicoma. 
Fig. 151. Anterior end, ventral aspect. X 9. 
Fig. 152. Seta from ninth somite, with striated border ; slightly twisted. X 100. 
Fig. 153. Seta with striated border ; not twisted, x 150. 
Fig. 154. Usual form of uncinus ; from seventh somite. X 321. 
Fig. 155. Occasional form of uncinus ; from twelfth somite. X 321. 
Fig. 156. Scapha-hook, showing laterally-bent tip. X 150. 
Figs. 157-161. Sabellides anops. 
Fig. 157. Entire animal, ventro-lateral aspect. Posterior extremity wanting, 
as are also most of the tentacles. Free-hand drawing, x 2.5. 
Fig. 158. Anterior extremity, right side, tentacles retracted. Two of the 
branchiae have been removed from the left side. X 6. 
Fig. 159. Single-bordered capillary thoracic seta. X 187. 
Fig. 160. Double-bordered capillary thoracic seta. X 321.* 
Fig. 161. Uncinus, lateral aspect. X 321. 
