47 158 Proceedings of the Royal Irish Academy. 



Fig. 



22. Paraonis (Parnonides) lyra sp. n. 



22 A. Anterior end, dorsal view, x 64. 



22 B. Head, dorsal view, drawn from living specimen, x 132. 



22 c. Posterior end, ventral view, x 80. 



22 D. Fourth foot, $. x 85. 



22 E. Fiftieth foot, 3 ■ x 85. 



Plate X. 



22. Paraonis (Paraonidcs) lyra sp. n. (continued). 

 22 F. Eightieth foot, 2 . x 85. 



22 G. Lyrate seta, x 1050. 



23. Nerinides tridentata sp. n. 



23 A. Anterior end, dorsal view, x 40. 

 23 b. Posterior end, dorsal view, x 100. 

 23 c. First foot, x 146. 



23 D. Second foot, x 146. 



23 e. Tenth foot, x 85. 



23 F. Twenty-fourth foot, x 85. 



23 G. Foot from posterior part of the body, x 85. 



23 H. Capillary setae, from tenth foot, x 500. a = long dorsal striated 

 seta ; b = short flat dotted seta, either dorsal or ventral. 



23 J. Crochet from twenty-fifth foot, x 500. 



Plate XL 



24. Aonidcs paucibranchiata sp. n. 



24 a. Anterior end, dorsal view. x56. 



24 b. Posterior end, ventral view. Compare fig. 25. x 100. 



24 c. Seventy-eighth foot, x 146. 



24 d. Ventral lamella of the seventy-eighth foot, to show the glands, x 146. 



24 E. Crochet from ventral division of seventy-eighth foot, x 574. 



25. Aonides oxycephala (Sars). Posterior end, side view. Compare 



fig. 24 b. xlOO. 



26. Cirratulus norvegieus (Quat.). 



26 a. Anterior end, dorsal view, x 18. 



26 B. Part of transverse section of thirty-first segment, x 40. 

 26 c. Short capillary seta from dorsal division of tenth foot, x 210. 

 26 D. Crochets from seventy-fifth segment. « = dorsal crochet ; b = ventral 

 crochet, x 85. 



