COPEPODA 



257 



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



— 3 e. f?. Maxillipes sin.; x 13-5. 



— 3 f. f?. Last 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 13-5. 



— 4 b. $. Pes IV sin. in posterior view; x 44. 



— 4 c. $. Pes V dext. in posterior view; x 57. 



— 4 d. $. Labrum in oral view ; x 280. 



— 4 e. $. Serrnla 6-dentata etc. ; x 200. 



— 4f. c?. Abdomen in lateral view; x 13-5. 



— 4g. <^. Pes V sin.; third onter segment; x 117. 



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



Fig. 5. Onchocalanus magnus Wolfenden. 



Fig. 5 a. ?. 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 e. ?. Labrum in anterior view and labial lobes; x 33. 



— 5 f. 5. Labrum in oral view; x 77. 



— 5 g. $. 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. 



— 6 b. c?- Abdomen in lateral view; x 13-5. 



— 6 c. c?. Maxilla sin. ; x 44. 



— 6d. (?• Serrula 6-dentata; x 200. 



— 6e. ? (Stage V). Pes V sin.; x 37. 



Fig. 7. Lophothrix frontalis Giesbrecht. 

 Fig. 7 a. $. Pes III sin.; x 24. 



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



— 7c. $. Labrum; oral .surface; x 117. 



— 7 d. ?. Lamina labialis and serrula 6-dentata; x 117. 



Fig. 8. Scaphocalanus magnus Tli. Scott. 

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



— 8 b. $. Pes II ; endopodite ; x 57. 



— 8 c. $. Labrum in anterior view ; x 77. 



— 8 d. ^. Labrum in oral view ; x 200. 



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



Fig. 9 a. $. Pes IV dext.; terminal seta; x 77. 



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



— go. ?. Labrum in oral view ; x 200. 



— 9d. $. Serrula 6-dentata; x 200. 



The Ingolf-Expedition. III. 4. 





33 



