COPEPODA 



257 



Fig. 3d. f$. End of broken seta in fifth lobe of the maxillae; x 44. 



— 3c f$. Maxillipes sin.; x 13-5. 



— 3 f . f<j>. East segment of left maxillipes; x 44. 



— 3 g. f£. Pes II sin.; terminal seta; x 44. 



Fig. 4. Cornucalanus chelifer J. C. Thompson. 



Fig. 4 a. $. Abdomen in lateral view; x i3'5- 



— 4b. £. P es IV si n - i n posterior view; x 44. 



— 4 c. <j>. Pes V dext. in posterior view; x 57. 



— 4 d. <{?. Labrum in oral view ; x 280. 



— 4 e. <j>. Serrula 6-dentata etc. ; x 200. 



— 4f. o*- Abdomen in lateral view; x 13-5. 



— 4g. o*. Pes V sin.; third outer segment; x 117. 



— 4b. $ (Stage V). Pes V sin. in anterior view; x 57. 



Fig. 5. Onchocalanus magnus Wolfenden. 



Fig. 5 a. <j>. Head in lateral view; x 13*5. 



— 5 b. $. Abdomen in lateral view; x 13-5. 



— 5 c. £ Pes IV sin. in posterior view ; x 44. 



— 5 d. ^. Pes V sin. in anterior view ; x 57. 



— 5 c <j>. Labrum in anterior view and labial lobes ; x 33. 



— 5 f . 5- Labrum in oral view; x yy. 



— 5 g. <j>. Serrula 6-dentata and lobus labialis in anterior view ; x 77. 



Fig. 6. Onchocalanus cristatus Wolfenden. 

 Fig. 6 a. $. Pes V sin. ; third outer segment ; x 57. 



— 6b. o*. Abdomen in lateral view; x 13*5. 



— 6 c. 6*- Maxilla sin. ; x 44. 



— 6 d. o*- Serrula 6-dentata ; x 200. 



— 6e. ? (Stage V). Pes V sin.; x 37. 



Fig. 7. Lophothrix frontalis Giesbrecht. 

 Fig. 7 a. <j>. Pes III sin. ; x 24. 



— 7 b. $. Labrum in anterior view; x 117. 



— 7 c. <j>. Labrum; oral surface; x 117. 



— 7 d. <j>. Lamina labialis and serrula 6-dentata; x 117. 



Fig. 8. Scaphocalanus magnus Th. Scott. 

 Fig. 8 a. °.. Labrum etc. in lateral view ; x 24. 



— 8 b. <j>. P es H j endopodite ; x 57. 



— 8 c. <j>. Labrum in anterior view ; x jj. 



— 8 d. $• Labrum in oral view ; x 200. 



Fig. 9. Scaphocalanus obtusifrons G. O. Sars. 

 Fig. 9a. $• P es IV dext.; terminal seta; x 77. 



— 9 b. $. Labrum in anterior view; x 77. 



— 9 c. <j>. Labrum in oral view ; x 200. 



— 9 d. <j>. Serrula 6-dentata; x 200. 



The Ingolf-Expedition. III. 4. 33 



